Ok, I need some ADVISE! I am really interested in this car. Follow the Link-> https://www.thirdgen.org/forums/cama...2-1le-z28.html My question is this guy is running 12lbs of boost to a stock 350TPI. Motor work consists of Accel Fuel injectors, Splitfire spark plugs, Mallory Distributor wires, and Competition Engineering roller rocker arms. Should I be worried? Please let me know what you all think. Thanks

 

Sounds like a nice car and as long as it was put together nicely and not a hack job I wouldn't be scared to buy it. Course it help to have some mechanical knowledge before you go into buying something that's been moded that much.

 

12lbs of boost on a stock internal L98?? ahahah.. ok... i wouldnt touch that car at all.. internals will grenade, namely the pistons. 12lbs is too much on a stock block...

 

Thanks for the feedback. It definitely seems to be a solid car. Every little bit of info helps. That 12#s of boost is what bothers me. I was thinking half of that would be plenty. Anything more I feel could potentially bring disaster, but I'm not ASE Certified neither do I have years of experience working on cars. I've got enough common since and knowledge about them. I really want it though

 

I've been over 16Psi For a few years and there are others out there running 10-12 also, I don't see many complaining blowing there engine apart. I think 12 on a stock block is fine, it's all in the tune.

 

6psi would kind of suck ***** in that car, you got to remember that 12psi is probably made at 5500-6k rpm and the stock engine don't really like to rev very high so really not much of that boost is actually making it into the engine anyways. Also another thing to think about is that blower ramps up boost with RPM so that combo might be only making 8psi at 5k and goes down from there, hell I didn't even feel a change in mine tell it got to about 4k.

I imagine if it was a turbo car I would be little concerned since you get the full boost so early but man that would be lot of fun to drive

 

Is it bad? I keep telling myself that the seller means the pro charger is capable up to 12lbs, but is not actually set at 12lbs. I'm thinking not.

 

remember that the weakest link are the stock pistons... one wrong hiccup with the tune, bad gas, and those pistons will grenade.. rods cant take all that much either.. forged pistons and rods would help greatly for longevity.. but eventually.. (sooner probably than later).. that engine wont hold for long, depends how you drive it too

running 12psi through a 9:3:1 stock compression engine, cast pistons, stock rods, stock head gaskets, is not a good idea, well i wouldnt do it, put it that way...

how many miles since the install of the procharger? what is he using for engine management? who tuned it?

you said yourself, you dont really work on engines, and then you miss spelled "common sense"... if things go south on this engine are you able to trouble shoot it? or do you have $$$ in the bank to pay someone... then be able to find someone who's willing to work on it... then find someone who's willing to work on it and be good at it?

Not trying to be a downer, but for your sake, and $15k, i would buy a nice stock (slightly modded) thirdgen for $5k and keep the other $10kon standby.

thats my

 

Two things that come to mind here...

1> The tune is what matters in this combo. Judging by the other parts on the car, it is most likely tuned properly. I have 100,000 more miles on my stock 5.7 engine than this car has and I'm running 12.5 psi. I've been turborcharged since Oct 09. I thrash on it constantly when I drive it several times a week.

2> The transmission is the weakest link. I don't see any mods listed on it. If this is the original transmission then it's a good sign the car hasn't seen a lot of boost in its life. It could be that he just doesn't thrash on it a lot. My transmission lasted 2 hours after I went from 8 psi non intercooled to 12 psi intercooled! So if it is a stock transmission, you might want to budget a build on it soon!

Car seems to be very nice. The small pics suck though!

 

Common Sense..... are you happy! Lol and no I'm not rich but I do like trouble shooting and figuring things out. that's why I am here doing my research. From one car guy two another thanks for your ) I think I might wait and save my money and do everything myself.

 

12#'s on a completely stock L98 is a bit scary to me. I'm sure it does depend on the tune but it's a ticking time bomb IMO...however that's just my opinion. I wouldn't dare run that much in my car but then again I don't like taking chances lol.

I wonder what injectors he's running..(unless it was in the ad and I missed it)