Quote:
Originally Posted by steve shadows
OH AND ON THE ORIGINAL QUESTION
I suggest using stock internals - if your motor is in great shape, then you can run about 500 Brake HP at length without it failing - this will be mostly up to how good your tuner is. not how conservative he is but how well he can tune.
If your bottom end is not however in great shape, stock Rods with JE or CP pistons will be fine. I suggest 8.8 : 1 compression and 18-20 PSI max with heat range 8 Plugs from NGK and a good quality MAP based EMS like a plug and play haltech E8 - the ECU is what makes a motor stronger not the pistons, any piston or rod will fry under shitty tuning conditions or a crap shoot hail marry want to be EMS like a e manage , afc or even the nis tune (jk) haha).
For example I have been pushing over 480-500 Brake HP on my Stock Container bottom end for the past 2.5 years now. This car uses 91 octane and a 100% stock Red Top bottom end, stock rods, pistons, bearings all original - My test bed/toy uses a .63 GT3076R Turbo, the only difference betwen it and the turbo you are thinking about is the Compressor wheel is 76 MM not 71MM - I use a T04S standard housing for max output as well as the Greddy IM - that has been modified to use a Q45 TB. I would typically not use an upgraded IM but this car is a test bed and in the name of science I have used this now for maximum dyno and road power
Tuned with Haltech E8 in steady state + power tuning on a dyno dynamics
Generates 405 WHP at 18 psi and 413 WHP at 18.5 PSI, and 420 WHP 19 psi.
All on the DD which reads approx 16% lower than a dyno jet, and 14% lower than a dyna-pack.
All I do is change the oil and beat the piss out of it - bouncing off the rev limited @ 8000 rpms with hydrolic lifters and all - 264 Step 2s - taken it to button willow several times and will be going for a 500 whp pull on it shortly here. Use a nice metal head gasket that incorporates a fire ring like a Apexi + some good head studs and you should be fine with a stock bottom end
This bottom end was simply inspected reassembled all stock original parts and then beat on to crap and back - again a testament of the tuning.
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If you don't mind me asking, what's your head setup? I see you kept the bottom end stock and you're using the 264's but what else are you using up top? Thanks for any info.