331 dyno numbers

[a_k]

So I got my car dyno'ed today. It ended up putting down 332hp and 340tq on a mustang dyno. It ran around a 12.5 afr with 30 degrees of spark. Next time I go i'm going to try 12.8:1 and a few more degrees. I was expecting slightly bigger numbers, was I asking too much?

 

[94CobraPace]

Nice numbers.. Congrats

 

[Grn92LX]

I'd expect more but we don't know what you asked Ed for when designing the cam. My friend had those same parts but on a 347 and made like 390rwhp

 

[a_k]

I asked him for a daily driver that made 375rwhp which was my goal even if it was a little high. He sent me back a cam with a 605 lift so I was surprised it was that big. I think my rings never seated right, I have 1500 miles on the engine and the oil still gets nasty after only a few hundred miles. I was just starting this thread since I see 302's making this much tq

 

[final5-0]

So I got my car dyno'ed today. It ended up putting down 332hp and 340tq on a mustang dyno. It ran around a 12.5 afr with 30 degrees of spark. Next time I go i'm going to try 12.8:1 and a few more degrees. I was expecting slightly bigger numbers, was I asking too much?

Two things to be aware about when talking about dyno results

1) Most peeps relate to Dynojet dynos more than any other dyno.

The Mustang dyno will usually report lower values than a Dynojet.

Some say the Mustang dyno is a more accurate method of measurement
if you are trying to duplicate street conditions

2) Dynojet values can be done in a calibration of SAE or Standard.
A good bit of the time, Standard will report higher values than
the SAE calibration.

Grady

 

[5spd GT]

The Mustang dyno will usually report lower values than a Dynojet.

Yep

Numbers look fine to me

I have seen several of Ed's cams that have high lift, narrow durations for daily driver cam's, mine included.

Your numbers seem spot on, especially for possibly having ring seating issues/blow-by...

 

[juiced_94gt]

I asked him for a daily driver that made 375rwhp which was my goal even if it was a little high. He sent me back a cam with a 605 lift so I was surprised it was that big. I think my rings never seated right, I have 1500 miles on the engine and the oil still gets nasty after only a few hundred miles. I was just starting this thread since I see 302's making this much tq

I just changed my oil after 600 miles...changed it at 200 miles also, and it still looks dirty after after just 400 miles...what do you mean about the rings not seating right?? does this cause any issues?? After how many miles should the oil start looking normal??

 

[5spd GT]

I changed my oil when I had the 306 rebuilt by Keith Craft after a warm-up and a 5 mile drive or so...it was dirty.

The next oil change about 75-100 miles later was clean as I can imagine

The lubing/torque products they use dirty the oil, but it shouldn't take long for it all to 'wash' out...

 

[Pokageek]

I just changed my oil after 600 miles...changed it at 200 miles also, and it still looks dirty after after just 400 miles...what do you mean about the rings not seating right?? does this cause any issues?? After how many miles should the oil start looking normal??

I was told NOT to worry about the oil looking like this for the first coupla oil changes Juiced. Why? Because tere is some kind of black lubricant that builders add to the eng when built. a/k , your numbers look great to me but again read Grady's post and might make more sense.

 

[blksn955.o]

I would think you could get away with more than 30*. It seems most alum. headed guys can go to 34-36 total.

 

[5spd GT]

I like the idea of 34* or so, maybe up to 36*, just listen for part throttle detonation and full throttle detonation. They can hurt power and possibly blow head gaskets...

 

[a_k]

I have seen several of Ed's cams that have high lift, narrow durations for daily driver cam's, mine included.

Your numbers seem spot on, especially for possibly having ring seating issues/blow-by...

Same with my cam. I'm going to try bumping the timing up to 34 later today and see how that goes.

Grady I have to thank you i'm pretty new to tuning, i'm just starting to get the hang of it and your site helped alot.

 

[SliverStang]

my 331 just made 420hp and 404 tq at the rear wheels with 38deg total timing. I swear the dyno was messed up but the owners dynoed another car right after we took my car off and it dynoed right where they expected it to. This was done on a dyno dynamics dyno which is supposed to read lower then a mustang dyno.

 

[The O.G.]

So I got my car dyno'ed today. It ended up putting down 332hp and 340tq on a mustang dyno. It ran around a 12.5 afr with 30 degrees of spark. Next time I go i'm going to try 12.8:1 and a few more degrees. I was expecting slightly bigger numbers, was I asking too much?

not bad numbers whats the graph look like?

my 331 just made 420hp and 404 tq at the rear wheels with 38deg total timing. I swear the dyno was messed up but the owners dynoed another car right after we took my car off and it dynoed right where they expected it to. This was done on a dyno dynamics dyno which is supposed to read lower then a mustang dyno.

whats the combo ?

8 degrees more timing quite a bit than his

 

[SliverStang]

Here are the videos of it the car was making close to 400tq from 2900rpm - 5300rpm then down to 360tq @ 6100rpm
and made 240hp @ 3300rpm and 420hp @ 5800rpm I can try to take a picture of the slip and post it later.


http://s160.photobucket.com/albums/t174/galleyhand/John/?action=view&current=PuttingCaronDyno.flv

http://s160.photobucket.com/albums/...?action=view&current=FirstDynoRunAllMotor.flv

http://s160.photobucket.com/albums/...ction=view&current=SecondThirdRunAllMotor.flv

 

[SQUEEZE&STROKE]

What is your combo?

 

[Killercanary]

Looks like an '85-older car, is it carb'd?

 

[SliverStang]

http://forums.stangnet.com/showthread.php?t=740661

 

[Killercanary]

So it is carb'd... there's a HUGE difference in making 400+rwhp in a EFI 94-95 compared to a carb'd car. It does seem as though your numbers are a bit high for the mods, but I don't know the cam specs or the compression. What accessories are you running? Is the cam a hydraulic roller?

 

[SliverStang]

i dunno the cam spec but the compression is 10 to 1 and it is a hydro cam and i am running a/c powersterring