1988 Camaro IROC Z, I am starting with a 350 4-bolt main block.

I'm in the process of building my toy up and trying to piece together ideas. First of all its either a 355 or 383 (fully forged bottom end of course), i've been told the price difference between the two rotating assemblies isn't that much so i should go 383, suggestions?

Second, I will have a Mini-Ram intake, AFR heads (210cc if i go 383ci) What Compression should i go with 8.5:1, 9.0:1, less??

Thirdly, This will be an ongoing project, the car is only driven at most 100 miles per week and only when the weather is perfect, i do mildly race it at the drag strip as well, when its built up i will be spending more time there with it and it will be primarily a street legal strip car that i drive to and from the track, and also to car shows in the local area, So with that said.. What kind of other recommendations do u guyz have? Cam size (roller or solid roller?), How much boost? (I'd like to run about 15psi maybe more at the race track), Transmission (th350 or th400?) Any other suggestions are greatly appreciated, i gotta get this mapped out ASAP so that i can start ordering parts..

Mike

 

How fast are you wanting to go, how much power and what kind of budget?

 

Well i know its kinda stupid but i realy dont have a "goal" per say.. I've wanted to build up my motor for a long time now and i love blowers, everybody has nitrous around hear.. As for the budget i'm working with, its kinda of an unlimited amount, I'll take my time with the project and do it all right the first time, its just an ongoing project..

I guess to answer your quetions, ideally i would like the car capable of 6's in the 1/8th mile and 10's in the 1/4 mile. So what is that, 500-600hp'ish.. The car will be caged, Ford 9 in rear, th400 w/ a trans brake for the track etc.

Any help is greatly appreciated.. Mike

 

Your goal should be fairly easy to reach with a hydraulic roller cam and a serpentine belt driven S-trim or a D-1. You'll be close to maxing out an S-trim though but it can make 600+rw, the D-1 will do 700+. You could also use a T-trim or if you really want to have room to grow then a YS trim. A Paxton Novi2000 would also meet your goals.

Note: You could also meet your goals easily with a nice set of heads, a solid roller cam and some compression and just skip the boost. Personally I'd rather have an 8,000rpm, 700hp naturally aspirated 355 than a supercharged 383 making the same power

 

True, but a blower can keep you smog legal... if that was a concern.

 

I toiled with the solid-roller, high compression NA set-up versus supercharged and determined that on pump gas, the ultimate power potential is nearly the same, but a supercharged motor will be more streetable.

They both have their advantages, though.

My last car ran 11.09 at 122.7 with a pump-gas 11/1 compression 383 with a hydraulic roller cam. It was a very simple, reliable, and consistent combination.

Mike

 

Sorry, I keep forgetting some people have to worry about that

 

Yeah, I live in Kalifornia... leader of the states in making laws for my own good whether substantiated or not.

 

I'd definetly go with around 9-9.5 : 1 compression. If you want 15lbs then go with 9:1 compression. (Intercooled) With a good bottom end and a mini-rammed 383 you'll make some serious power. Definetly a good choice for the heads. As far as superchargers go i'd suggest the D-1SC. As far as the trans goes, you might consider one of dana's probuilt transmissions. I just got mine and it's rated at 600hp. It's $$ but would have the overdrive advantage and still be able to rip when you wanted it to.

Either way you'll have one hell of a monster when it's all done.

 

hmm sounds awesome.. Well first off thanks for all the replies guyz, i really appreciate it, keep'em commin'!

In between these posts i was doing some reading on Prochargers and i think i decided on the D-1SC as u recommended CRZYTRN-92Z28. It looks good to me.

Emissions is of no concern to me ;-)

So what about the Solid-roller setup? Would i benifit from it more than the roller setup i have now or wouldn't it make that much of a difference.. Would it give my more streetablility?

So all in all, when its said and done, what kind of power can i expect to see out of this engine combo (383, AFR 210 heads, Mini-Ram, Solid Roller Cam) ? 500? 600? 700? (i seen these numbers tossed around)

And, is 8.5:1 compression too low for these type of Intercooled Supercharged motors? Or is 9:1 sufficient, i know Fuel Injection is different than Carb setups and i realy dont know the answer.. Right now this is my main concern, they guyz i talked to about the motor at the shop sounded like they wany me to go lower then 9:1 but they work with Carb'd racing engines, not TPI stuff..

Thanks again!! Mike

PS.. I am goign to keep the boost on the lower end for now (< 15psi) but when the car gets caged and setup for the bigger power i want to go crazy and bumpe it up higher, maybe 222psi or so, this might change ur minds about the compression question..

 

Static Compression Ratio is important, but you should consider the Dynamic Compression Ratio. Check out the advanced forum, there is a topic on that right now.

 

At least 500 ponies.