Ok I am wanting to build a engine and plan on using an ATI procharger system. I have the engine (L-98) and its out of the car so I can take my time, I have never built an engine before and want to do it right. I am mechanically inclined and will be doing most of this stuff myself I just wanted to know if you guys can point me in the right direction or even offer suggestions and such. My goal in this project is to hit 11's in the quarter.

 

no offense this has been addressed so you may want to look through the last few pages of this poweradder section for the "how to" because it is a duplicate post, thanks for your co-operation...

 

It probably took the same amount of time to be a dick to him as it would have taken you to just answer his question. Congratulations.

 

That doesn't mean he isn't right

 

start here https://www.thirdgen.org/techbb2/sho...hreadid=144692
and here https://www.thirdgen.org/techbb2/sho...hreadid=155437
and this https://www.thirdgen.org/techbb2/sho...hreadid=150571
and this https://www.thirdgen.org/techbb2/sho...hreadid=149018
and this one is somewhat useful https://www.thirdgen.org/techbb2/sho...hreadid=159607
and to get it all I used was this and the words "building" and "engine" in the power adder section.

 

thats cool, you guys pointed me in the right direction thank you

 

Ok at the moment I have decided to go with the TRW blower/nitrous pistons, and the eagle h-beam rod, and a stock crank, and running aroud a 9:1 c/r. I am wanting to run a hydralic cam shaft and was leaning towards the TPIS ZZ-9 cam. Is there any other suggestions on other cams?

As for the heads I am not sure what to use, I was originally thinking to use the Corvette L-98 aluminum, would those flow well enough for what I am looking for?

Also I am going to be running the motor N/A for a while to save up for the ATI kit, and was wondering if this set-up would do ok for being N/A then going boosted? And as for the injection/tpi system I plan on using the Accel Super Ram with DFI.

 

Just want to add some thoughts.

hope you dont care about emmisions first of all.
and check into Holley's commader 950 its cheaper and in my opinion, easier to use / better.
Also if you really want a nice cam go with a comp custom grind to get the one you want, with 9:1 compression and a bit of street driving you will thank yourself with a tighter LSA, like 110.

on my 383/blown motor im running the comp XE270 cam, I've tried a few different ones, a crane blazer 224/234 114, lunati blower cam 234/244 112, performer rpm 303/313 112, and comps XE262 218/224 110, and out of all of them, the comp XE262 was the best for the street, made the most torque where you use it most, and didnt spit raw fuel out the exhaust on the highway. that was in my 350, so for the 383 im stepping up the duration to the XE270. Im using AFR195CC heads. Corvette aluminum L-98 heads are not bad from what ive heard, but if you want to hit 11's you may need somthing a bit more radical for your combo. I think your on the right path with 9:1 and forged rods, and i hope your "Stock crank" is factory forged, that should do well. def use a hydroulic cam if you street drive it too.

Cant think of much else to add... just throwing some thoughts out there. like Tom said, its all been done and re-done, Im just adding my comments on your particular setup, things you may not have found searching.

 

id spend the money on another crankshaft. you have good pistons and rods, then the crank is kinda crappy unless its a factory forged one.

Josh

 

87transam5.7tpi, you're from nebraska? where?

 

FWIW, I'd bet that the reason that you were happiest there wasn't so much the different timing, but Comp's extreme lobe design. It gives you the advantages of both a larger lobe and shorter duration at the same time.

the only real disadvantages with them is that they are much harder on valve springs then similar 'normal' lobes and can lead to a situation where you build too much cylinder pressure even when you thought that you were running lobes that were somewhat oversized and would bleed off more then enough pressure for the compression that you were running.

 

Crossfire i know that applies to roller camed XE series but mine are flat tappet, is the XE still have that advantage? so far its been the best for my combo i have found

 

yes I was planning on a Factory forged crank, wouldn't spend all that money on pistons a rods and not have a good crank in there.

Also the Holley 950 is that available in TPI form? And if so would it flow as well as a Accell Superram?

 

you mean the holley stealth ram? the one they offer with or without the computer? the c950 is the name of the computer that holley sells the intake is called the stealth ram. It flows way more than a super ram. but both the stealth ram and the super ram flow more than the heads you can buy that fit them.

 

You're 88 TPI ECM will run this intake well if you buy the intake separately. there is an awsome pair of articles in GM high tech performance last issue (MAY '03) and this current issue (July '03) all about it. the first issue deals with installation and part two is a track test. the car they are testing is a 88 iroc with a warmed over 355. With a SLP modified TPI system they ran a best of 12.95/104.4 with the HSR installed they ran a best of 12.67/107.84 and with a chip they ran 12.39/110.13

 

i'm from right by lincoln, u originally from here or something?

Josh

 

I plan on going totally DFI and selling my stock TPI complete (wiring harness and all, prolly with the 305 also) Is there anywhere I can learn about the Holley C950? So far I have only heard of Accells DFI and from what I hear it is a good system. But if the Holley is just as good or better and cheaper also the I may be changing my set up a little.

 

No, but one time along time ago we went and raced at "Junks"burg (julesburg) NE, never again man, never again. We are actually not that far away here in cheyenne.

 

Relative to a similar flat tappet, yes.

FWIW, there are some fairly good arguments that a flat tappet could make more power in a boosted application then a roller. (you get useable lift earlier with a flat tappet because of it's shape, usable lift for a boosted application is a lot less then it is NA)