LosLs1's

iTrader: (21)

Ok guys I'm bout to finish my gathering of parts for my turbo build. I'm running a front mount turbo setup. The turbo I'm running is a mpt70 an ls6 cam and all the other necessary parts to do the job correctly. I still have the stock ls1 rotating assembly, my dilemma is should I stick with the 241's or get the 317's I'm planning on running 8-10 pounds of boost what do you guys suggest I'd do? Any advise would be appreciated thanks...

LosLs1's

iTrader: (21)

Any one??

BrianC98Z28

iTrader: (11)

if you have the opportunity to pick up some 317s for cheap go with them, they'll lower the compression which will help longevity of the stock assembly

30th t/a

iTrader: (51)

I would stick with the 241's and run meth.
I was all about having super low compression so i could run lots of boost. I bought a set of 317s and I had TEA open up the chamber's even more to drop the CR way down to 8.7:1, and out of boost the car was very sluggish. I did not like it. My next setup will be a 10:1 + meth motor.

5.0 LsX

iTrader: (7)

stock 317 heads will bring an ls1 down to 9.5 compression, shouldnt be to sluggish. im in the middle of the same build, but wondering which turbo i will be satisfied with.
also your mpt70 should spool pretty quick, dont think youll have any issue with the sluggish feel...

LosLs1's

iTrader: (21)

So I should ditch the 241's and go with 317's I would just want this thing to "last" so I can get the rotating assembly in a few months how many lbs you guys recommend on 317's??? My goal is to be around high 400's low 500's

LosLs1's

iTrader: (21)

So I should ditch the 241's and go with 317's I would just want this thing to "last" so I can get the rotating assembly in a few months how many lbs you guys recommend on 317's??? My goal is to be around high 400's low 500's

5.0 LsX

iTrader: (7)

low 500 hp with that setup should be no problem on 8-10lbs of boost, given a lot of other factors. but a set of 317's should only cost around $150
although if your building a rotating assembly soon, save the money and run the stock longblock and pick up a decent set of heads later to match your build.

LosLs1's

iTrader: (21)

Sounds good to me guys oh what gearing do you guys recommend going with? Have an m6 but thinking of going with a th350 wich I'm out looking for a good use one.