pendergrass_98

Ill start out by saying im new at this site this is my first time using this and thought id see how it works out.
iv got a stock ls1 im wating to do a lil fixn' up on my goal is around 500rwhp i was thinking about a set of afr205 heads, ported ls6 intake and tb, bigger maf, and cam. im not for sure what cam would go good with that set up. any suggestions or comments would be great thanks! im wanting all motor build no nos, turbo, procharger etc...

ABQ99TA

iTrader: (17)

It will take some effort but it can be done. Check this out.


https://ls1tech.com/forums/generatio...heads-cam.html

Transam1

iTrader: (6)

takes more than that my friend, we are on the same quest! scrap the intake and Tb for a FAST setup, you will never get enough air in with that... might as well get some 1-7/8" headers instead of 1-3/4" from the git go.... underdrive, fuel pump, elec water pump, injectors,more compression, crazy cam...then it will fry your transmission and a rear end will soon follow, then it wont hook and be outran by a 400hp car, you will get discouraged and it just escalates from there!! know from experience

SippiSpeedhawk

iTrader: (21)

I agree with transam. I have nearly the same setup you are describing with the addition of porting by mamo on my heads and an UD pulley on the engine I just built. I'm hoping to be >450hp.
GL with your build though.

98z8uup

iTrader: (7)

Good luck, but I don't see you getting it with some of the mods you have.

bww3588

iTrader: (49)

Air in, air out is the key. Focus on supporting nods first such as trans and rear end...etc then move on to the engine. I say this because broken parts are hard to sell. Your 10 bolt can be sold to offset the cost of a better rear end, same with the transmission unless you plan to have it rebuilt. If you destroy the trans, You Will have more money in it getting it fixed, then rebuilt, or if you sell it for a different one, it won't be worth much at all.

BOBS99SS

iTrader: (2)

op honest 500 rwhp is very hard to make, if it was easy everyone with a h/c/i would be making 500 to the rear, if your willing to pay the best for everything you might get it you might not,imo if you have the funds i would think about maybe bigger ci

butler

Through an automatic it's almost impossible. Unless you go solid lifter and such and real high comression and race gas. But I say go for it.

SweetS10V8

iTrader: (4)

Why is 500rwhp significant to you? You dont care anything about drivability, track time, or anything else other than a number output by a dyno?
UNOH, day 1. "An engine is an air pump" haha....

I agree with this statement, although I'm guilty of not following it myself in the past.

BOBS99SS

iTrader: (2)

i agree shoot for a great running car, whats a dyno number anyway besides a number, its really going to depend on what dyno its on, on a mustang dyno a true 500 hp car is a 600 hp car lol, it depends man, i think its alot better to say it runs 10s than its a dyno queen

Badmeat

iTrader: (1)

I would like to add that 1 3/4" headers will be fine for a stock c.i. LS1. No need for 1 7/8". Bigger isn't necessarily better...

DarkFox118

iTrader: (7)

want 500rwhp?

LQ9 shortblock, good cam (probably 240s) decent set of heads.. should get you very close.

on an ls1 it's a little bit harder n/a.

with boost 500, 600..800rwhp seems to be the "boring" numbers.

1999BlueTA

iTrader: (34)

I dis agree on the 1 7/8 headers, dyno results and track times prove that 1 7/8 work better even on stock LS1's!!!

Badmeat

iTrader: (1)

I've seen conflicting results:

https://ls1tech.com/forums/generatio...o-results.html

https://ls1tech.com/forums/generatio...xperience.html

I think it more or less comes down to the header design than anything else.

mark21742

1st off, what exactly do you want to do with the car, and how heavy is it? If your looking for a weekend hotrod to sound bad *** rolling down the street and to enter in shows, then you can focus more on just the engine.....but if your running it at the track with good sticky tires and are trying to get good times I would start at the back of the car and work forward (rear end and rear suspension, then driveshaft and tranny, then lastly the engine). If you want to drive it more on the street you will also need it car to have decient manners which will limit your HP goal.

To get more HP you will want to spin the motor faster, so get great parts instead of ok parts, and you might even want to go with a sheetmetal intake and try dooming the engine up to and past 8,000 rpms to hit your goal.

BrntWS6

iTrader: (7)

Interesting from someone who knows LS1's

mark21742

Goes to show you the less back pressure the better.....then add good scavaging on top of that for even better results

garygnu

whats your budget ?you will need some really nice heads and a custom cam .get a fast 102mm intake and great exhaust system.read Patrick-G thread on making 500rwhp a couple of times to see if you really want to open that can of worms.it mite be easier to buy a TSP ls2 engine ,and get a custom cam.

mark21742

I could be wrong, but I don't think even the 102 flows well up over 7,000......but I have been wrong before

pendergrass_98

i know there are several more mods im gonna have to do i was just wanting to start with the motor and go back as of right now its not gonna be a track car im just wanting a bad *** street rod haha. i was looking into a FAST set up but it was just alot of money and a ported ls6 intake seemed better for the after all the looking up i did and im kinda on a budget right now..iv got a 70 chevy im redoing another 4x4 pickup im working on