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06-25-08, 02:23 PM
| | Member | | Join Date: September 2005
Posts: 30
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I'm thinking of putting on my 66mm pulley for the dyno. Does anyone know what size belt i will need? I have the Mosaleen idler pulley on as well.
00 GT vert
Series II S/C
BBK long tubes & o/r x-pipe, pro 5.0, 3:55's, TT inlet, cobra TB, 66mm pulley,
90mm TB, Chicane intercooler, hand ported lower intake, SCT |
06-27-08, 10:21 AM
| | Official Member | | Join Date: October 2004 Location: Los Angeles
Posts: 373
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I'd like to see the dyno results. I've been wanting to try this with the oval inlet neck from the whippled cobras but whipple wanted $700 for the oval neck. |
06-27-08, 03:43 PM
| | Official Member | | Join Date: June 2004
Posts: 80
| | Quote:
Originally Posted by RedS281GT  I'm thinking of putting on my 66mm pulley for the dyno. Does anyone know what size belt i will need? I have the Mosaleen idler pulley on as well.
00 GT vert
Series II S/C
BBK long tubes & o/r x-pipe, pro 5.0, 3:55's, TT inlet, cobra TB, 66mm pulley,
90mm TB, Chicane intercooler, hand ported lower intake, SCT | Quoting Scott Van Hoose "the size of the belt for the 2.66 pulley real tight is 111.5 and will stretch out to be about right. 112 is tight going on to, but stretches out to much for my preferance." |
07-02-08, 08:57 AM
| | Official Member | | Join Date: June 2004
Posts: 80
| | "I just scheduled an appointment with Dynospeed for 8:00 am on Thursday, July 3rd!" |
07-03-08, 03:46 PM
| | Official Member | | Join Date: June 2004
Posts: 80
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Quote:
Originally Posted by pbm.cc "I just scheduled an appointment with Dynospeed for 8:00 am on Thursday, July 3rd!" |
so??? what happened?~  |
07-03-08, 04:06 PM
|  | Official Member | | Join Date: August 2003 Location: NJ
Posts: 3,053
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Are you quoting yourself? And i thought i was arrogant. |
07-03-08, 05:49 PM
| | Member | | Join Date: September 2005
Posts: 30
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I didn't quote myself, if I read that right! I have results. Give me a sec to upload my dynosheet. 00 GT vert
Series II S/C
BBK long tubes & o/r x-pipe, pro 5.0, 3:55's, TT inlet, cobra TB, 66mm pulley,
90mm TB, Chicane intercooler, hand ported lower intake, SCT |
07-03-08, 05:51 PM
| | Official Member | | Join Date: August 2003 Location: NJ
Posts: 3,053
| | Quote:
Originally Posted by RedS281GT I didn't quote myself, if I read that right! I have results. Give me a sec to upload my dynosheet. 00 GT vert
Series II S/C
BBK long tubes & o/r x-pipe, pro 5.0, 3:55's, TT inlet, cobra TB, 66mm pulley,
90mm TB, Chicane intercooler, hand ported lower intake, SCT | Pbm.cc did, i was really just teasing. |
07-03-08, 06:23 PM
| | Member | | Join Date: September 2005
Posts: 30
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Here we go! 
First of all I would like to say what a great job Joe at Dynospeed did. He really took the time to get my car running right. Great guy, great service, and I couldn't have put my car in better hands! Now for the numbers!
I'd have to say I was really disappointed... at first! My first pull was around 319 and couldn't understand why. Then we discovered two issues. My intercooler pump fuse had blown, so we were looking as a huge heat soaked blower. Fixed that, and then came the fuel pump! Someone please correct me if i'm wrong, but a SVT Focus fuel pump is rated for 400-425 rwhp! The pump was professionally installed yesterday, so there's no issue there. I PEGGED it out at 319! They had to install a Boost-a-pump to keep up with the air flow! I don't know of anyone who has had to use a boost-a-pump on their Saleen blower! Everyone said that the Focus would support the Saleen. If i'm wrong, say so! My best pull was 353hp and 373 tq, but the a/f was way lean. Joe fixed the problem and the car feels amazing strong now!!
This was done on a Dynojet and Joe informed me that if it had been done on a Mustang dyno, the numbers would have been higher. I don't know if the people that have seen around 400 had their car done on a mustang dyno or not! I honestly never looked. I'm not trying to add fuel to the fire on Dynojet vs. Mustang dyno. My numbers are what they are! The true test will be what numbers I will see when I take it to the track! If 344hp and 365tq is great for a Saleen on a Dynojet, please let me know! Air inlet temps ran from 138 to 148. There are two things I feel good about. That I maxed out a Focus fuel pump and the Tork Tech allowed me to see peak hp above 6000 rpm! 00 GT vert
Series II S/C
BBK long tubes & o/r x-pipe, pro 5.0, 3:55's, TT inlet, cobra TB, 66mm pulley,
90mm TB, Chicane intercooler, hand ported lower intake, SCT
Last edited by RedS281GT; 07-03-08 at 06:25 PM.
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07-03-08, 06:45 PM
| | Official Member | | Join Date: December 2003 Location: Hillsboro,OR
Posts: 409
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Those #s are about right for the series 2 on a dynojet. As for being higher on a mustang dyno that would be incorrect. The #s on a dynojet are about 10% HIGHER. I made 335hp and 360tq with my series 2 on a dynojet with the stock series 2 blower and the chicane 66mm pulley. It felt better than stock but no where near how the kb 1.7 felt at 9# and 405hp and 430tq. The dyno is just a # so take it to the track and tell us how it does.  |
07-03-08, 07:01 PM
| | Official Member | | Join Date: June 2004
Posts: 80
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Quote:
Originally Posted by RedS281GT Here we go!
First of all I would like to say what a great job Joe at Dynospeed did. He really took the time to get my car running right. Great guy, great service, and I couldn't have put my car in better hands! Now for the numbers!
I'd have to say I was really disappointed... at first! My first pull was around 319 and couldn't understand why. Then we discovered two issues. My intercooler pump fuse had blown, so we were looking as a huge heat soaked blower. Fixed that, and then came the fuel pump! Someone please correct me if i'm wrong, but a SVT Focus fuel pump is rated for 400-425 rwhp! The pump was professionally installed yesterday, so there's no issue there. I PEGGED it out at 319! They had to install a Boost-a-pump to keep up with the air flow! I don't know of anyone who has had to use a boost-a-pump on their Saleen blower! Everyone said that the Focus would support the Saleen. If i'm wrong, say so! My best pull was 353hp and 373 tq, but the a/f was way lean. Joe fixed the problem and the car feels amazing strong now!!
This was done on a Dynojet and Joe informed me that if it had been done on a Mustang dyno, the numbers would have been higher. I don't know if the people that have seen around 400 had their car done on a mustang dyno or not! I honestly never looked. I'm not trying to add fuel to the fire on Dynojet vs. Mustang dyno. My numbers are what they are! The true test will be what numbers I will see when I take it to the track! If 344hp and 365tq is great for a Saleen on a Dynojet, please let me know! Air inlet temps ran from 138 to 148. There are two things I feel good about. That I maxed out a Focus fuel pump and the Tork Tech allowed me to see peak hp above 6000 rpm! 00 GT vert
Series II S/C
BBK long tubes & o/r x-pipe, pro 5.0, 3:55's, TT inlet, cobra TB, 66mm pulley,
90mm TB, Chicane intercooler, hand ported lower intake, SCT | Yeah, I quoted myself! I was anxious... lol
well It seems like too much $ for too little improment. Dang! I was hope for you to be in the low 400's!
I might just save $ now for a 2.6H and a built short block.
dang it.
Still, now get cams, and the cobra fuel tank and you may need a Diablo MAFia and bump it a little over 400. Also, what is the altittude and temp of the dyno? and if the car's intercooler pump cause alot of heat soak on the first run, was it cool before the second pull? man you should had take some dry ice and put it in the heat exchanger resivor before dynoing! lol
Still that's a great dynosheet! seems like they put their hard work into your car.  |
07-03-08, 07:02 PM
| | Official Member | | Join Date: June 2004
Posts: 80
| | Quote:
Originally Posted by saleen556 Those #s are about right for the series 2 on a dynojet. As for being higher on a mustang dyno that would be incorrect. The #s on a dynojet are about 10% HIGHER. I made 335hp and 360tq with my series 2 on a dynojet with the stock series 2 blower and the chicane 66mm pulley. It felt better than stock but no where near how the kb 1.7 felt at 9# and 405hp and 430tq. The dyno is just a # so take it to the track and tell us how it does. | per your sig: Do you still have the stock intercooled hood using the 2.6h?
just wondering... |
07-03-08, 07:34 PM
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Posts: 30
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It was about 100 degrees inside the shop. I did put ice on the s/c to help cool before the runs. I think the air intake temp was somewhere around 138 to 148 at WOT. Some dry ice in the tank would have helped. BTW, with the hp that i'm showing, how much do you think it hurt me to have a stock 2.25 cat-back on? I''ve been told that it could be a huge bottleneck! |
07-03-08, 10:31 PM
| | Official Member | | Join Date: December 2003 Location: Hillsboro,OR
Posts: 409
| | Quote:
Originally Posted by pbm.cc per your sig: Do you still have the stock intercooled hood using the 2.6h?
just wondering... |
No. I had to go with the 2k cobra R hood. I have heard the saleen extreme may fit but didn't want to risk it. The hood has actually grown on me now and I like it. |
07-03-08, 10:46 PM
|  | Founding Member | | Join Date: August 1999 Location: Vancouver, WA
Posts: 862
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The rule of thumb is that every 10 degrees is worth about 10 HP. Example: 99 GT, TTI blower, mid day 95 degrees, 29 % humidity 375 rwhp. Next morning: 65 degrees, 21% humidity 408 rwhp. Most dyno sheets you see posted by manufacturers are done early in the day (or in an air conditioned room) and those are the numbers posted. The cats could be changed to hi-flow cats which would also pick up some power.
I hope when you hit the track its a nice cool day. ET's will tell us more. Glad to see things worked out with Dynospeed.
BTW..that Focus pump should be good to about 390/400. Did they look at the duty cycle on the pump at all? Or injector duty cycle? I also did not see a boost curve on the sheet. Do you know what boost levels were? |
07-03-08, 11:11 PM
| | Member | | Join Date: September 2005
Posts: 30
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the fuel pump was maxed out around 319rwhp. It would climb up to 1.000 which meant 100%, i guess. Is there a chance that my brand new focus pump could be defective? It sucked in a lot of air, enough to lean it out. The only explanation is that its either defective or somewhere along the way, the power is not getting to the tires! I'm going to do a compression test soon to see if thats the culprit. It has been running pig rich for a long, long time!
Joe never brought to my attention any issues with the injectors, so I would assume that they worked fine. The boost was a funny thing. I now have the 66mm pulley on there, but it only climbed up to 10 lbs. @ 6200rpm! When I was installing the injectors, I must have knocked loose my boost wiring. They decided to just hook up one of theirs and it only showed 10lbs! I did read on a post in another thread that when you port the lower intake, you could loose a pound of boost because there is less restriction and boost is a measure of restriction, correct?! Could the Tork Tech inlet tube remove enough restriction to cause a drop in boost?? Those two factors could explain why I only saw 10lbs. instead of 13 lbs.
In addition to that, I bought the 111.5 inch belt for the pulley swap, but it was too tight, so the techs insisted that I use my origional belt. I thought it would be too long, but it fit! On the dyno, there was no belt slip at all. When the belt slips, there are dips in the air/fuel ratio. I didn't have any. Didn't know if that sounded weird to anyone else. 00 GT vert
Series II S/C
BBK long tubes & o/r x-pipe, pro 5.0, 3:55's, TT inlet, cobra TB, 66mm pulley,
90mm TB, Chicane intercooler, hand ported lower intake, SCT |
07-03-08, 11:35 PM
| | Member | | Join Date: September 2005
Posts: 30
| |
Oh, and im on 15 degrees of timing!
00 GT vert
Series II S/C
BBK long tubes & o/r x-pipe, pro 5.0, 3:55's, TT inlet, cobra TB, 66mm pulley,
90mm TB, Chicane intercooler, hand ported lower intake, SCT |
07-03-08, 11:37 PM
| | Official Member | | Join Date: June 2004
Posts: 80
| | Quote:
Originally Posted by RedS281GT It was about 100 degrees inside the shop. I did put ice on the s/c to help cool before the runs. I think the air intake temp was somewhere around 138 to 148 at WOT. Some dry ice in the tank would have helped. BTW, with the hp that i'm showing, how much do you think it hurt me to have a stock 2.25 cat-back on? I''ve been told that it could be a huge bottleneck! | Stock from a Saleen or a GT? I dont know how good the Borlas from my 02 S281sc are but they sound nice at WOT and quite while crusing. However a GT's is murder on the motor!!! those have to go... You will definatly free up some ponies there. Were you getting any slippage? and my friend also dynoed his car today with a V2sq and 15lbs no intercooler. About a year ago he dynoed at 498rwhp on torco. Today he was changing from his Predator to a 3stage flip switch and dynoed at 457rwhp on torco and 427rwhp on pump. Manny (HPP) said that the temp in the shop was a little over 100 degrees, and on the old tune it was 72 degrees! so about 40rwhp loss due to the temp. You never know.... might be closer to 400rwhp that what I think. |
07-03-08, 11:45 PM
|  | SuperMod
Canadian Colossus | | Join Date: August 2002 Location: Ontario, Canada
Posts: 8,096
| | Quote:
Originally Posted by RedS281GT The boost was a funny thing. I now have the 66mm pulley on there, but it only climbed up to 10 lbs. @ 6200rpm! When I was installing the injectors, I must have knocked loose my boost wiring. They decided to just hook up one of theirs and it only showed 10lbs! I did read on a post in another thread that when you port the lower intake, you could loose a pound of boost because there is less restriction and boost is a measure of restriction, correct?! Could the Tork Tech inlet tube remove enough restriction to cause a drop in boost?? Those two factors could explain why I only saw 10lbs. instead of 13 lbs. | Actually, opening things up on the intake end like you did would normally increase boost, not lower it. It's when you free things up on the exhaust side that boost pressure drops, because you're able to more efficiently "evacuate" spent gasses through the system.
Most likely it was the heat that caused your boost to drop. Warm air caries less oxygen with it, as a result is easier to compress than cooler, more dense air and as a result, will show up as a drop on the gauge.
And I've added your vehicle info to your sig, so you don't need to add it to your every post from now on. 
Last edited by Gearbanger 101; 07-03-08 at 11:48 PM.
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07-03-08, 11:54 PM
| | Official Member | | Join Date: June 2004
Posts: 80
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Quote:
Originally Posted by RedS281GT It sucked in a lot of air, enough to lean it out. The only explanation is that its either defective or somewhere along the way, the power is not getting to the tires! I'm going to do a compression test soon to see if thats the culprit. It has been running pig rich for a long, long time!
In addition to that, I bought the 111.5 inch belt for the pulley swap, but it was too tight, so the techs insisted that I use my origional belt. I thought it would be too long, but it fit! On the dyno, there was no belt slip at all. When the belt slips, there are dips in the air/fuel ratio. I didn't have any. Didn't know if that sounded weird to anyone else.
00 GT vert
Series II S/C
BBK long tubes & o/r x-pipe, pro 5.0, 3:55's, TT inlet, cobra TB, 66mm pulley,
90mm TB, Chicane intercooler, hand ported lower intake, SCT |
I would had stuck with the 111.5! The guy that MAKES the MOSALEEN idlers is the one that told me to use that size belt with the 66mm and the idler. It seems to weird to use the stock belt that was on a bigger pulley plus no idler, that could also be why you didnt see the 13lbs.
Some things dont make sense to me...
1: if the Chicane intercooler almost garrantees about 40-50rwhp where are they at? (my s281sc dynoed at 301rwhp with everything stock from Saleen.)
2: the TTI should had given it more rwhp... I was thinking about 10-25rwhp since its from the LMAF sensor, single blade TB and the intake itself. ( so that should had been about 301 + lets say 40rwhp from the intercooler + say 15rwhp from the TTI= 356rwhp give or take and you still have LT's and the 66mm pulley! and lower ported!!! Something is wrong... I would think.
what size injectors do you have? maybe time for a bigger heat exchanger? cams? catback? damn it! It should be over 400! |
07-04-08, 12:48 AM
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Posts: 30
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Damn it, it should! 
I might try to put it on myself! Don't know if it will mess with my tune or not! I do have the idler, maybe thats why it didn't slip, who knows! there honestly was no evidence of slippage. Could it be possible that it was slipping the entire time and that's why it didn't show up on the data logging? Any thoughts?
I have a feeling that the TTI inlet did help. It's supposed to open up the top end breathing and I pulled all the way to 6200 rpm. I haven't seen another Saleen car do that.
The lower is hand ported by myself. I just opened up the 180 degree bends a little and gasket matched the intake....and heads! 
I have the 42lb. injectors and even though i could use the cat-back and heat exchanger upgrade, it should still be over 400! From what a few have posted just a while ago, the 98 degree room temperature could have robbed me of some 30 odd hp( just a guess).
Thanks Gearbanger 101 for the upgrade!  |
07-04-08, 12:54 AM
| | Member | | Join Date: September 2005
Posts: 30
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One more thing! A fuel pump will never care about a dyno sheet or a hp number! It only knows that it has to pump fuel based on the air supplied into the engine! With that being said, if my pump isn't bad, then why was it maxing out at 319 rwhp? There was enought air to lean it out. Something is not right! |
07-04-08, 11:43 AM
| | Official Member | | Join Date: June 2004
Posts: 80
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Quote:
Originally Posted by RedS281GT Something is not right! | I will agree with this part... Your car shouldhad been higher. when you get a chance go to a dyno shop and just pay the $30 for a dyno in the morning. See how much the temp in the shop hurt your car.
Also is the clutch slipping? that could be why the graph at high rpm is bumpy.
if you ARE able to install the 111.5 belt on your car with the 66mm pulley it may affect the tune as IF you were getting slippage with the tune, now there would be none or minimal. so more boost and the same amount of timing. maybe just see if it fits and if it does then take it back and tell them "YO! THE BELT DOES FIT AND IT WAS SUPPOST TO BE ON WITH THE DYNO, CAN YOU MAKE SURE THE TUNE IS SAFE WITH THE 111.5 BELT?!"
they , shouldnt act up as you had originally told them to use it and they are the ones that backed out of it.
Still it would be a good ideal to do a compression check. Never hurts.
Also, if your able to get another dyno (either by just doing a dyno for $30 or taking it back for a check up on the 111.5 belt) buy a little fuel pressure gage and mount it on the motor's fuel rail, have someone see if the fuel pressure drops alot in high rpm. If it does it is probably the fuel pump.
Are you using colder plugs? like NGK tr6's or something like that?
you made sure you have no vacuum leaks?
header leaks?
other than that... I cant think of nothing else at the moment.
by the way: HAPPY 4TH OF JULY!!! |
07-04-08, 04:26 PM
| | Founding Member | | Join Date: August 1999 Location: Vancouver, WA
Posts: 862
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The fact that it started showing lean on the early runs, would tell me that it is definitely a fuel delivery issue. It is possible the fuel pump is not up to par. The Focus pump is as good as, if not better than the Ford GT pump (of course they use 2). At the 400 HP level they usually show a 90% duty cycle. Gearbanger is 100% correct. You will notice a pressure drop by removing restriction or back pressure on the "output" side of the blower, not on the inlet side.
Who else here installed a 66mm pulley and what kind of boost level change did they see?
The power curves on the Dyno sheet show that there is no clutch or belt slippage. I have seen dozens od Dyno sheets with slippage problems, and they are REAL apparent. No sign of that here.
I think the shop temperature and the fuel issue are the key here. |
07-06-08, 10:14 AM
|  | Official Member | | Join Date: June 2004 Location: New Hampshire
Posts: 128
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I would not use the boost-a-pump as a long term solution. IMO, I have never agreed with cranking up the juice to the fuel pump, to get more volume. The boost-a-pump is 'band aid' defined. I am a 5.0 guy, so I am not up to speed on which fuel pump is best for your car. Sounds like the Focus pump should do it, but clearly it is not. I think that the modern diagnostic computer can monitor fuel pressure and volts used by the pump, as a way of testing it. I would try and diagnose if it is working properly, 1st. If not, replace it with same, maybe a warranty issue? For your application, I would recommend an external inline fuel pump. Something like a Vortech T-Rex, or Anderson Big Pump, and I think BBK makes a pricey one, as well. The external pump will not hurt anything, all it will do is greatly boost your fuel volume, as it is required. Good luck! | | Thread Tools | | | | Display Modes | Rate This Thread |  Linear Mode | | 
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