If you plan on running a turbo...like the STS I assume... then you want to keep the CR down so don't mill the heads. And you will not be able to use the true dual setup either. So you really have to know your ultimate goal before you mod...

 

i dunno which would be better for racing? i wanna say a mean idle but im guessing that it mite be too much to handle, ya know? i heard that the trex is a nice one.

 

well the true dual is on of those things that i can hack off no prob. i dont wanna lower compression because i still want some gas mileage. i wanna be in teh 11 second club, so i can break up the f-body monopoly on it. haha.

 

Lol, I would say go high CR and get those things milled and stick an MS3 or a t-rex in it. You are gonna need like a 4000 stall and some 4.10's or 4.56's for that t-rex though. and some bad *** dual springs like patriot golds or Comp 921's. probably all of the above for the MS3 as well.

 

A turbo would probably make up in effeciency where low compression would be parasitic on your gas mileage.

oh and those bigger cams like that, you won't want to mill for PTV reasons.

 

mite be too heavy duty for me. 4.10 would be killer on mileage lol. i was think 3.73s or so. im down for getting a higher stall just because it doesnt look like it affects daily driving so much.

 

nah it doesnt really. If you want to be in the 11's don't be too concerned with gas mileage though.

 

when they say computer tuning needed wat does that mean? ill need to bring it to speed shop or get a new PCM?

 

nah, you will need to go get a dyno tune on it. that will most likely entail the tuning of the idle and your adjusting of the A/F. The more crap you have the better off you are with a tune anyway. If you did decide to go with the T-Rex please don't get a mail order tune... That is something that will take a handfull of pulls on the dyno to get running correctly. With that cam alone you will see 410+ rwhp and like 390 ish rwtq without heads...

 

holy ****... so wat all would i need to run that dinosaur?? dual springs any chopping of the heads? i think i need a new rear anyway so ill just toss something better in there. maybe some 4.11s with a zexel. around a 4000 stall? would i need 1.8 rockers?

 

would ls1 edit be an option?

 

lol. don't use the 1.8RR's with the T-rex unless you want your valves to become part of the pistons!!! Your stock 1.7's will work perfectly with that cam.
Just get the port work done (make sure they are credible) and don't take any material off the deck. You will need it for the clearance. PTV is already really close with T-rex and stock heads.

I would go with either EFI Live or HP Tuners honestly.

 

a 12-bolt would be a good option for the rear maybe with like 31 spine axle and a full locker!

 

maybe i do want them all one piece. lol. so no clearancing of the heads at all?? just get a really good port and polish? the only problem is with the tuning is that its an s10 that came stock with a 180 hp v6. where can i get one of those tuners?? you are awesome man!

 

the thing with the rear is im still driving it in the winter and lockers are horrible for sliding. i live in alaska btw. iwas thinking a ford 9" or a 8.8"

 

Holy ****....Alaska ehh? Well you got that PCM and engine and trans all as a whole from a 99 LS1 right? It is software that you can order online. If you have a laptop it is freaking handy.

Yeah a 9 might be a better choice anyway, but most of the tme you hear of people with M6 going the 9' route and A4 going the 12 bolt. That 9' can take a regular beat-down...don't worry about breaking it. 8.8 isnt a bad idea either. I say go with the cheapest one of those 2 that you can find.

 

If you are serious about the T-rex don't touch the heads other than polishing the exhaust and porting the Intake side. You might want to go with bigger valves as well. it wouldnt be but around 120$ bucks to do that. What is the cast# on the head? is it a 243?

 

well the engine will be a long block assembly the 4l60e i was thinking of buying off a trans shop and having them build it to handle 450hp and the 8.8 is outta an explorer so its cheaper, the axles are thick too. the computer will probly end up being a stand alone system and i have a conversion harness so ya. the stand alone will just be a blank ls1 computer that is programmable outta the box. i do have a laptop i can use.

 

yeah if it is a PCM from an LS1 get the HP-Tuners or EFI Live. They are actually sponsors here ----------------------------------------------------------->

 

i was planning on buying a rebuild kit and having the block honed. i was gonna do comp cams valvetrain too. i dunno about the heads yet, ill see if i can get som ls6 but wats the difference in clearance between the two?