How much power to expect from Pro-M 75mm Bullit?

axeman

Founding Member
Feb 9, 2001
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Elizabethtown, PA
can I expect 10HP and maybe drop a tenth in the quarter? I just ordered on and should have it soon. Then I'll get to the track and see what happens. Of course, it'll have to be after I replace this stupid water pump that started leaking on me.
 
I went to a 73mm on a stock engine, and really didn't feel much difference. Your intake may breathe a little better with it, but I assume you didn't change the lower, so I think the difference will be minimal at best. Sorry. Hope you prove me wrong at the track :nice:
 
blk92stangg said:
I went to a 73mm on a stock engine, and really didn't feel much difference. Your intake may breathe a little better with it, but I assume you didn't change the lower, so I think the difference will be minimal at best. Sorry. Hope you prove me wrong at the track :nice:
Hes got the trick flow intake, so it will breath better than stock, but I don't see any heads to help out the intake.
 
i do have the upper and lower tfs intake. you can't put the upper on without the lower. different pattern. sometimes it's hard to feel a seat of the pants improvement, but when i put the intake on i did find a 2mph gain and dropped 2 tenths in the quarter. so the intake works well with the stock heads.

hopefully i get the MAM soon and next sunday i might be going to the All Ford at 75/80. weather probably won't be the best though. usually pretty hot and humid the day of that event.
 
just put one on mine and I didn't notice that much on the low end but once I got to the top end YEHH HAWWWW! I don't Know what that dynos out at but I found that it helped me alot , I've got 65mm tb, Ported intake and heads and exhaust work so that was one of the bottle necks.
 
If you are replacing the stock 55mm meter, then you may experience a little more on the top end, but typically, you don't feel much with general daily driving. Your heads are the real bottleneck in the system. It doesn't matter what kind of intake and exhaust mods you have if the heads are the restriction.

I am fully aware of the cost of great head-cam-intake combo, but I think you will be a little disappointed with the amount, if any, power you gain from a mass air meter swap. Ford gave us all "wheezer" emissions heads that die at around 5500 RPM, or less. Make yourself a little account and safe your dollars for a blower or decent head-cam-intake combo. You won't be disappointed. Instead of 5 HP gain, you may be looking at over 100 HP gain.