Mach 1 Engine Questions
4th Gear Member
Joined: Feb 2008
Posts: 1,447
From: Charlottesville, VA
That's kind of a hard question, and I won't speak for anybody else, but me, the 4V in the mach's is just a much better platform to start from. It breathes better, and produces more in the way of power per mod than the 2V's in the GT's do. Dont' get me wrong, I've had the smack down laid on me by a built GT before, but you have to do a lot more to a GT to make it hold up under boost than you do to a mach.
The only two things I'd wish they'd done were to stay with the same TEKSID cast blocks they used in the 96-98 cobra's just because it's a stronger block, and I wish they'd gone with all forged internals in the mach's like they did with the cobra's. The 3650 tranny like other's have said is kinda hit and miss. I had horrible friggin luck with the one's I had so I upgraded to a TKO, but then I've seen guys with forged 3650's running 500+ rwhp too, so it can kinda go either way.
The only two things I'd wish they'd done were to stay with the same TEKSID cast blocks they used in the 96-98 cobra's just because it's a stronger block, and I wish they'd gone with all forged internals in the mach's like they did with the cobra's. The 3650 tranny like other's have said is kinda hit and miss. I had horrible friggin luck with the one's I had so I upgraded to a TKO, but then I've seen guys with forged 3650's running 500+ rwhp too, so it can kinda go either way.
Mach I Section Moderator
Joined: Mar 2007
Posts: 7,140
From: round abouts these parts
That's kind of a hard question, and I won't speak for anybody else, but me, the 4V in the mach's is just a much better platform to start from. It breathes better, and produces more in the way of power per mod than the 2V's in the GT's do. Dont' get me wrong, I've had the smack down laid on me by a built GT before, but you have to do a lot more to a GT to make it hold up under boost than you do to a mach.
The only two things I'd wish they'd done were to stay with the same TEKSID cast blocks they used in the 96-98 cobra's just because it's a stronger block, and I wish they'd gone with all forged internals in the mach's like they did with the cobra's. The 3650 tranny like other's have said is kinda hit and miss. I had horrible friggin luck with the one's I had so I upgraded to a TKO, but then I've seen guys with forged 3650's running 500+ rwhp too, so it can kinda go either way.
The only two things I'd wish they'd done were to stay with the same TEKSID cast blocks they used in the 96-98 cobra's just because it's a stronger block, and I wish they'd gone with all forged internals in the mach's like they did with the cobra's. The 3650 tranny like other's have said is kinda hit and miss. I had horrible friggin luck with the one's I had so I upgraded to a TKO, but then I've seen guys with forged 3650's running 500+ rwhp too, so it can kinda go either way.
Sub i got a surprise for all the guys around here whilst i am gone to a sandbox. old school meets newschool with boost.
5th Gear Member
Joined: Dec 2007
Posts: 2,112
From: Houston, Tx
Plain and simple. Mach 1 look nicer, to me. They breath better thus producing better numbers. And they are rarer than a GT. Im stuck with 2v and when i turbo my car i would rather have a 4v so i can produce better numbers. Even on my nitrous. I could do so much better times with a 4v than a 2v.
Mach I Section Moderator
Joined: Mar 2007
Posts: 7,140
From: round abouts these parts
Plain and simple. Mach 1 look nicer, to me. They breath better thus producing better numbers. And they are rarer than a GT. Im stuck with 2v and when i turbo my car i would rather have a 4v so i can produce better numbers. Even on my nitrous. I could do so much better times with a 4v than a 2v.
6th Gear Member
Joined: Feb 2007
Posts: 11,302
From: North Carolina
I've read its because the automatic transmission can't safely spin that high in Fords eyes, so they lowered it. I could see them lowering it to cut back on warranty work.
This is my opinion though. I think they did it to keep the car somewhat under control and civil for the masses. They already spin second gear under the stock tuning. If it shifted into 2nd at 6800 rpms, it would be all over the road, which is fine with me, but maybe not with everyone. Also, it is way hard on the transmission hitting higher gears at high RPM. At any rate, all that can be altered with a handheld. You can always bump it up to whatever rev limit you want, etc. For your last statement, no the automatic isn't slower than the manual (not from what I've seen anyway), but I'll agree that the auto isn't nearly as much fun.
Fwiw, I ran a 13.34 at 105 mph with ZERO mods other than a catted X-pipe. My manual Mach didn't do that with just an X-pipe......although other manuals have. It really comes down to the pilot, not the car. The auto and manuals are side by side with equal drivers for the most part.
This is my opinion though. I think they did it to keep the car somewhat under control and civil for the masses. They already spin second gear under the stock tuning. If it shifted into 2nd at 6800 rpms, it would be all over the road, which is fine with me, but maybe not with everyone. Also, it is way hard on the transmission hitting higher gears at high RPM. At any rate, all that can be altered with a handheld. You can always bump it up to whatever rev limit you want, etc. For your last statement, no the automatic isn't slower than the manual (not from what I've seen anyway), but I'll agree that the auto isn't nearly as much fun.
Fwiw, I ran a 13.34 at 105 mph with ZERO mods other than a catted X-pipe. My manual Mach didn't do that with just an X-pipe......although other manuals have. It really comes down to the pilot, not the car. The auto and manuals are side by side with equal drivers for the most part.