Gears

[91PA5liter]

WOW i just got 3.73 gears put in my stang made a huge difference. I raced a friend of mine who usually runs even with me but now i just pull on him like no other. MY only question is how do i gain some of my top end back? would a better h-pipe and cold air give me some of my top end back? thanks for the help
ryan

[91PA5liter]

anyone have any suggestions? or did i answer my own question with the cold air kit and h-pipe and just doing what ever to add horse power will raise my top end? thanks again

[jetuomi]

an off-road H-pipe will help your top end AMAZINGLY..
it'll move stock peak from 4200 rpm to closer to 4500rpm..
and add about 12 rear wheel HP.. (in my case, I did plugs, wires, h-pipe, timing bump) and it all helped my top end, and now I run 96 mph in the traps (over a 3 mph improvement) and my times went down...

I don't think that's too shabby considering I have a stock heavy 94 w/ 3.27's, h-pipe and pulleys..

so yeah, get an h-pipe.

but on the other hand, cold-air kits really don't help much, if you want to increase your breathing, and you know you'll go with heads, cam, intake in the future, get a bigger MAF/t-body combo, like a 65mm t-body with a 76mm MAF by C&L with their own cold-air kit included..

good luck

[95mustanggt]

Pulleys are a cheap way to add power across the power band. If you have a 1993 or older 5.0, you might want to get a 130 AMP alternator though. A MAF boosted my upper RPM performance (although I would say only marginally)

[PKRWUD]

Top end is all about breathing. The easier the air gets into the combustion chambers, and the quicker it gets out, will help your top end. The trick is to do things equally. For example, if you threw on a set of 3.5" pipes, you would lose top end because there was no longer any backpressure. An H pipe would be an excellent place to start, and I always support anyones decision to go for cold air.



Take care,
-Chris