so i have abit of money to spend on the stang and was wondering what mods next? at the moment the car is pretty much stock with only a plenum and a TB a drop in filter and cats delete and a Sniper tuning software. what i have waiting for install is a Stage one cms cam ( going in on Sunday ) and noszle Nitrous direct port kit (with all accessories and 2 stage colder plugs + boost a pump) still cant find the courage to put the nitrous kit on . and i was wondering what to do next for the car? exhaust is out of the question since i would get pulled on every corner and ticketed one more thing , the car is a auto.
The J-mod for your tranny and a high stall torque converter. Check out TCC0A.com on J-mod. 3.73 gears or 4.10's
Depends on your goals for the car. I wouldn't personally get a stall first, especially if you haven't modded a lot yet since the J-mod can be done w/out dropping the trans and a TC is tailored for you mods/set-up anyway so when you do big mods down the line the the stall rating would change comparative to the torque peak. I'd go exhaust, gears - the j-mod and suspension/brakes.
doesn't J-mod only increase shift pressure? so its pretty much the same i could do with my programmer?
For an auto id do the torque converter, gears, throw on that nitrous, kit and work on the suspension. For the exhaust thing you could do LT's and a midpipe but keep the stock catback on there
right now my plans for the car is to get patriot stage II heads within a month or two and put the nitrous on and that should be a decent street car , at least for my own needs right now i am pretty much set on gears as my next mod, i would like to know if 4.10 is too much gear and would cause traction problems with 125 shot + heads and cams , should i just get 3.75? id like to hear from someone who has an auto if thats possible.
A stall converter and gears should be any Automatics first modifications. Not saying you have to go with a 4000 race converter that makes it non street firendly, but a moderate increase in stall can pick your car up 4 tenths at the track. Gears can do the same and actaully work hand in hand with a good stall. Here is a good example. I had a 97 LT1 Trans am stock a4 with 2.73 gears. (Not a mustang I know, but same principle applies) Took it to the track and could not get lower than 9.15 i nthe 1/8th et. Ok, I went the bolt on route of flowmaster, K&n cold air, msd, cutout for exhaust and was so dissapointed as the car then ran 9.10 best et. A buddy taught me about converters and how they are overlooked most of the time. He promised that if I invested money into the right one and a set of gears I would thank him big time. Well, I did alot of research and the contacted precision industries and talked to a tech about still wanting to be streetable and very concerned about drivability. He recomended a certain unit and I paid a good bit...like $900 for it. Had it installed along with set of 3.73 gears and took the car back to the track. I could not believe it, as first drive before ever going to the track told me that I now owned a beast!!! I knew times would be lower if I could hook up. Now on street tires mind you, I still managed consistant 8.40s in the 1/8th mile. Now you do the math and decide for yourself. Some people will say that you have to have slicks if you do a converter and gears...blah blah blah. NO you dont, If you pick the right setup and learn to drive it properly. Some will also say that the stall is only good for racing from a dig and you have to spool it up. Wrong again, If allows more motor hp at all rpm to get through to the wheels. Notice how many people in this thread mentioned stall converter, now do more research and make the best decision for you.
Thanks for your valuable input Mikie , also thanks everyone for their inputs once more , i am doing gears next and a Stall converter once everything goes on the car. my question is , is 4.10 for a auto is too much gear? or is 3.75 suitable for my plans?
4:10's on an auto are definitely not too much. Many say there are the equivalent of 3:73's mated with a manual transmission.
You are quite welcome. As for your last question, The 4.10s are not but 100-200 rpms more than the 3.73 gears at 60mph. I personally would go with the 4.10s if I planned on staying naturally aspirated, but you mentioned nitrous will be applied so with that said... no more than 3.73s This is my opinion only and some may dissagree. I think that if you go 4.10s and spray your rpms are going to come up FAST and then you are probably going to have to shift into 5th gear right before you cross the traps. If you are not ever going to worry about good times at the strip and can deal with quick shifts on the spray then you can do 4.10s on spray on the street. It comes down to what you want the car to become.
Heads/cams/nitrous on a stock bottom end is a recipe for disaster. Don't spray too much of the giggle juice if you want to keep it together.
I'm no gear expert, but I have to agree with Mikie. Do 3.73's since you're gonna spray. 4.10's would be perfect for the current setup, but as Mikie described, it would probably cause you an extra shift when running. Again, it all comes down to what you want the car to become. Well said Mikie.
Even then I think it would be pushing it. With heads/cams and a tune safe for nitrous, you will probaly put down 280-290 rwhp and a little over 300 ft. lb's. Throw a 100 shot on top of that and count on close to 400 rwhp, and some mutant tourqe. Even more with the 125. Just saying that as a caution, not a dettourant...
