Quote:
Originally Posted by BLOWNBLUEZ06  I see you have done some homework, however show me a KB powered LSx car making 800rwhp. The Magnuson MP/Eaton TVS product is making the #'s on the LSx engines. I have spent some significant time tuning and logging a 2.8l KB 402 and am not impressed with the #'s all. If efficiency was so high, then tell me why the IAT's are so high. This is even after fixing KB's engineering failure of an IAT setup. With a Magnuson MP112 and spinning the crap out of it, IAT's were 160 degrees at the end of the 1/4 mile. With the KB, they're 250 plus. If you're wondering about my tuning, don't bother. He took it to LMR for a retune because I sent him home to fix some issues and he wanted "the best" They did their best and that car isn't making over 600rwhp. Mustangs may like them, but LSx engines don't. Forget about reading. This is real world. I've seen it many times now and the crappy #'s keep coming from those not too embarrassed to post them.
If you insist on a PD system, TVS is the way to go. Period! |
Not to doubt your knowledge or tuning skills on this particular car, but with IAT's of 250 degrees, something is seriously wrong with that set up. Definitely a cooling related issue if those temps are correct and that 250 degrees is not a typo. I don't see a motor staying intact with temps that high. The car must've been running a crazy amount of boost, I'd assume at the max KB rates the blower. If I remember correctly, the 2.8's are rated at ~28lbs max boost. Even then, 250 degrees is stupid high.
The harder you spin a blower, the less effecient it'll be. Spin it within its effeciency range and temps will obviously stay in check, given the cooling system is working properly. I wouldn't pin this car's issues on the KB being an ineffecient blower - and I'm not much of a KB fan.