tc78 questions

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07-31-2009, 01:15 PM

#11

TURBHOE

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Quote:

Originally Posted by kbracing96

I think it would be fine on a 402 with only spinning it that fast. I like to keep turbos a bit on the small side in trucks any way, just so your in the usable power band of them any way. A big turbo is great if your building a track only car and can launch with a 2 step all the time, but for a street driven vehicle like your truck, a smaller turbo on a bigger motor is WAY more fun! Almost no lag, but still has a descent top end

thats kinda what i was thinking. it would have a mean 2000-6000 rpm band and should still make tons of power. i told the guy i wanted 650-800hp (low and high boost)and he said that should be fine with either motor the 370 or 402. i understand a 370 has the big bore and i can use the same heads but it seems these days a crank isn't much more after buy all the other parts. you can get a callies kit for pretty cheap.

i figure it this way i could crank the boost on a small motor and make XXX power or i can have low boost on a big motor and have the same power. i don't want over 2 bar (14.7 here at sea level) and the smaller motor will have to go over the 2bar. i say that because with my ecu my fueling table with a 3bar setup is stupid. the ve table doesn't get bigger the accuracy just gets worse from 2 to 3 bar.

but my question is, with the stroker cranks have they fixed the oil burning issues it seems some guys have? i heard some blocks with shorter skirts have oil burn issues but other blocks with longer sleeves don't . which is which and is it true?