white99ta601

iTrader: (1)

i have a 99ta and it has 135,000 on the ls1... am thinking of going to a forged 370 with 8.5 to 1 compression. but am not sure which will be more reliable for dd.... looking to run 12-15lbs boost on pump gas... i will put about 20,000 a year or more on it.. also will i need to pull it every year to check the bearing or should they be ok putting that many miles on it....

98transguy

iTrader: (7)

at 8.5 to 1 thats a little low on compression for a procharger.either way thats quite a bit of power for a daily driver.

jason02Z

iTrader: (10)

i would do turbo for a DD one of my friend has a f1 with a mild cam 402 and its very loud and might not be the best to drive all the time. the turbo set up can be comfortably driven and still make a lot of power.. they would both be nice set ups. search here or on the video section for blower and turbo cars

red beast

either one will be great, I like the loud *** sound of the blower whine so that wouldn't bother me....good luck....

EPP

iTrader: (22)

You're right Chris. For a ProCharger we recommend 9.5/1, so he needs to figure out which type of forced induction he is going to go with before building the engine.
I've heard and seen a lot of ProCharger equipped engines getting in a lot of miles without any problems.
My turbo Dodge that I had years ago went 190k + miles without any problems, but oem turbo systems have millions of R&D behind them. It's going to be a tough call, and you're going to get plenty of opinions. Bob

white99ta601

iTrader: (1)

thanks bob for responding... i have looked at a couple of the kits on your site... so 9.5 to 1 want be pushing it on pump gas even when i go to the track... though i don't plan on bumping up the boost just for the track... as far as heads go is it better to keep a smaller cc runner or does it matter that much... cause i was thinking about the trick flow 225's.... once again i appreciate the help...

EPP

iTrader: (22)

No, check out this 346 C5 Corvette. It ran for a year or more before adding methanol to it. http://www.exoticperformanceplus.com...Car.php?car=40
Centrifical supercharger seem to run better on a little more compression than the turbos do.
As far as the heads go, I'd stay smaller with your plan of running a 370. Bob

white99ta601

iTrader: (1)

thanks for the info Bob... it is helpful in deciding on what to do...atleast i know who to call when i get ready to do my build...

mahhddgtp

EPP has built some mean procharger setups. They are always insightful and friendly on the forum. If I do a procharger build, I'm going to EPP.

Just a ttt for EPP

gametech

iTrader: (1)

With a Procharger your main concern is belts, and with a turbo your main concern is the boost reference to the wastegate. As long as you get a well designed kit, flip a coin as to what you want your MINOR worry to be. Keep in mind that with either option, you are only stressing the motor when you WANT to. The rest of the time it really just gets normal NA stress. Also, 8.5/1 CR will leave a lot of normal DD power and throttle response on the table. I would only go that low if you really plan on cranking up the boost.

lmt0705

iTrader: (7)

i ran 9.5 last year with 15-16psi on a 347 all year last year with a D1SC with no issues, call Bob at EPP, he will hook you up and steer you in the right direction

EPP

iTrader: (22)

Another thing to consider is that almost all aftermarket turbo systems will eventually crack the turbo mounts. This needs to be considered for a car that is going to see 20k miles a year. This may not happen on the APS kits, with their exceptionally nice cast iron APS exhaust manifolds. Bob

white99ta601

iTrader: (1)

thanks guys.. i beleive i will go with a procharger when i get ready to do it.... i like the complete kit that bob sells... looks like that would cover everything i can think of that i would need

gametech

iTrader: (1)

You are correct, which is why I specified a "well designed kit".