kgkern01

iTrader: (10)

Now that my TA will never be a daily driver again, and E85 is become more locally available, I am considering making my 385 build strictly E85. I already have a Scat 9000 3.75 crank, SRP 4.040 pistons, LE3 heads, 5.7 Scat I-beams. Was planning on about 12.3 SCR and cam above 9.0 DCR for E85, so if I need to switch back to gas, all I would have to swap out is the cam to get a lower, more 93 octane friendly DCR. Intake will be ported by Lloyd later as well, and I have the M29 trans and will run 3.73-3.90's in my 10-bolt.

I want to keep the shift revs below 6600 to keep it a somewhat torquey motor, vs a 7000 rpm rev-happy race motor. As well as to keep the Scat crank happy. BTW, I ran open cutout 100% and solid engine mounts and find it perfectly fine, so I can tolerate, and expect some harshness. Use for the car will be occasional weekend car, autocross, and road course track days. It is not a drag car, other than maybe twice a year, and always on street tires.

Do you guys think an E85 LE3 headed 383 would make about 450 rwhp keeping the revs below 6600? Just want some opinions.

Jditlfm

iTrader: (26)

I see no reason why it cant. Maybe not the first time out, but through some tuning and optimizing the heads shouldn't be a limiting factor. I would have Le spec the cam for you.

AChotrod

iTrader: (17)

I think so. My LE2, stock short block on 93 made 413.66, with a Dana S60, would be closer to 430 with a 10 bolt,

vanilla89

iTrader: (8)

my LE2 setup makes 434hp through a A4,you should have no problem doing it through a 6speed.

Chevyguy358

iTrader: (4)

yup...should be no issues. I did an E85 build also, and I have two separate tunes so I can switch back to 93 if I would like. Gas fill ups come a bit more frequently and you have to know where they sell E85 if you drive out of your hometown.

slomarao

iTrader: (6)

shouldnt be a problem. M6/10 bolt cars dyno great.

nichols92

I did 449 to the tire with a similar set up through a 12 bolt on E85

flyinZ

iTrader: (15)

Any details on your setup? Or track #'s?

I think its possible, as long as everything is matched up correctly, and the tune is "on".

jarretthise

iTrader: (9)

i dont know why it should not be able to be done...its not like your askin to much more than alot of ppl have already done to their cars

James Montigny

iTrader: (13)

Build the motor right the first time, get all of the tolerances correct, get a proper tune
and don't skimp on the valvetrain ... 450 is very doable.

kgkern01

iTrader: (10)

I got one suggestion for a custom cam with 12.2 SCR and would put DCR at 9.1
23x/24x .61x/.61x 108 LSA.

What do you guys think about this cam? What kind of 1/4 MPH and rwhp do you think this would put down on LE3 heads in a 385? Like I said, its not going to be a drag car, just a weekend street/autox/RR car, I'm still on the 10-bolt and street tires, so 1/4 ET isn't of much concern.