i blew the 305 in my gta and i was going to see what it could do...i spun a bearing and put her down...

i have a couple of options im thinking about and i want to hear what u guys think

i havent decinded on which intake but i was gonna do 383 mini ram or 406 superram...and either of the LPE cams...afr heads or the like...how are the edlebrock heads?

how would this run HP/TQ and waht would it run in a 91 gta with a t-56 or th350

thanks guys

 

I'd take a 406 over a 383 anytime.

It's your call as far as the intakes. Each has their own pros and cons, plenty of info on this site about that. Depends a lot on your goals and preferences of what rpm's you want to make power at. With either intake w/ a good combo, you'll be in the 11's and be very streetable. A 406 would probably favor the MiniRam, it flows better, although a SR can be ported, and should be for a 406.

I'd probably go 406, MiniRam, AFR 210 or 220 heads, would have to research which. And I'd get a pretty big cam, one like the TPIS 239/239. That'd be a great setup and would be pretty good on the street. Gofasterfirebird is building something similar, but he has a converted LT1 intake (like a MR), and AFR 190 heads. (had them on his 350). He has a T-56 tranny.

The manual or auto tranny is personal preference too. I like autos for cars running 12's or quicker, that's just me though.

 

That was a good race!!

 

Don't forget about the Holley Stealth Ram...performance of the Miniram for a fraction of the price...

check out www.thunderracing.com for pricing and such...it is where I got mine...and of course, no affiliation, kickbacks, etc. for this...

 

BuckeyROC is right on with the 406-miniram combo. The miniram sacrifices some torque vs other intakes. With 406 cubes you should have plenty of torque and the potential hp gains would be much higher than with the 383. If you do build a 383, either would probably be okay, however the miniram makes for a cleaner, more accessible installation.
As for cylinder heads, your choice should be based on what your intentions for the car are. If it is mostly a street car I would suggest a 190cc head for the 383 and a 200cc for the 406. On a street car you want throttle response which is directly linked to intake velocity. If you go too big on heads the velocity at lower rpms drops off. If low et is your game then bigger is better.

 

I'd put a MiniRam on any motor, especially a large one, long before a SuperRam. Go find a car with one of each, and tighten an intake bolt. I think your decision will make itself for you.

The Stealth Ram would be a good choice as well.

There are alot better cams than the LPE ones for other intake systems. They are optimized for stock TPI setups and the SuperRam, but are far from ideal for a short-runner system. Cams that look more like for use with carbs will work better with the other non-LTR systems.

 

the main use for the car wont exactly be a daily driver...it will get regular street use but im goin to get groceries with it....

i was leaning towards a mini ram but i was also thinking about a superram...but now that u guys mention it, i wont be short on torque so i can loose a little...

what are the flow differences between a Stealth Ram and a ported LT1 intake...

those were the size heads i had in mind because this isnt gonna be a strip car...i want crisp throttle, low-mid grunt and strong pull to 62-6300....

cam wise one with a 110 lsa?...what about a hot cam?
what would suit to my plans for my car
a hot cam or the tpis grind?


i was racing my buddy about 10 mins before this happend so i beat him and killed my bird


Buckeyeroc....how far into the 11's lol...say i launched it easy with a t-56 pulled a 2.00 60ft...powershifted 2nd and 3rd like perfect shifts..what could it run...


i know i have a lot of questions...but you guys will answer them all


later

rob

 

emmisions requires a EGR. only the Superam has EGR provisions. your choice.

 

That information doesn't exist yet. No one has done a comparasion yet.

BTW, I'm willing to loan an LT1 intake for a 3rd party unbiased flowtest if they can get other intakes and do a full flow test on each.

 

I hope to run 11.9's, and I think it's very possible. As it says in my sig., this thing hasn't been tuned yet. I have a 355 and a FULL weight IROC w/ drag radials (no slicks or skinnies). I've seen some C4 guys running 11.5's-11.7's with a 383 and the AFR 190/SR/LPE 219 combo.

As for the 2.0 60', no matter which engine you decide on, you'll be nowhere near your ET potential running 60's like that. When I hook, I run 1.71-1.73 60 fts. easing into the throttle on drag radials. I only run 1.9's when I punch it off the line, so I can pick up a little ET if I tweak my suspension too.

 

justin...here in michigan there are no emissions laws, so i dont have to worry about that....

john...its kinda surprising that none has done flow tests on them...i think that they would al flow pretty close to each other

buckeyeroc...i bet your combo could get a 11.9 and good luck...so if i had another 50 cubes..with the next step cam and heads...and a 1.8 60 like u mentiond would be a low 11?

im guessin that a auto tranny would be the best huh...what about a lenco lol...that would be a little unfair lol

 

If you run that 406 combo listed above, MR, great heads, and the TPIS 239/239, I'd say prob mid-high 11's @ around 120+ MPH with a 1.8. But with that combo, you might be able to run 1.5x 60's with slicks and run low 11's. I'm kind of guessing here. I'll know more about the combo in the spring, my friend is going to run it.