damn thats a good deal man

 

If we can figure out this CR

 

You're telling me! i need someone whose either done this or knows what their talking about to figure out how much boost we can SAFELY run with a 9.7:1 CR with the 383,then we'll know our next step.

 

well i think cobras have a cr of 9.5 and there is a bunch of them running around with 15 pounds. The thing i dont know about is if that stroker from eagle is gona play a role or not.

 

thats what im wondering,its obviously going to be intercooled as well to help but its my DD so....i was thinking since its a forged crank and stronger than the stock crank that it should be ok,but id rather be safe than sorry.i wonder what kind of rwhp #'s id be looking at with the 383 @15psi?

 

From what i know, on an LSx motor, it would be max of 8>10 psi with intercooler and good fuel at 9.7 SCR

 

that does mean nothing. 2 different beasts.

 

iam not sure but damn dude ur gona be going trough tires like crazy, 383 stroker is gona be a torquey motor, and ad a blower to that and ur gona be exploding tires of the line lol

 

ive decided that this time around im doing things once and thats it,im not dealing with BS im getting serious.and the funny thing is i never go to the track,basically this is for me,cause i been working my *** off as i want this bad.i want to get a motor so my car is built for whatever i throw at it,has ZERO miles again so for resale WAY down the road(if i ever sell it) and is reliable and just insame to drive if i feel the need to use the skinny pedal.ill be the person whose at the track once every 6 months makes 2 passes on stock tires with stock suspension(except SFC and LCA's) and rip a high 10 pass with a 2.2 60ft and trap at 120+ and then cruise home in 6th gear at 1800rpms.

 

well its up to u and ur driving style the 383 is a damn good deal but keep in mind that its gona be a toquey motor, that wont be reved as high, so if u like to roast the tires off the line then thats the one for u. Now if u like a revy motor then go for the stock crank, so it depends how u like to drive. Now as far as the issue with the boost and the 383 i dunno there man sorry.

 

im leaning towards the 383 because of this
https://ls1tech.com/forums/dynamometer-results-comparisons/192630-dynograph-771rwhp-716-rwtq.html
post #12 about his CR,i realize that its a 427 with the best of everything but it has its similarities.im more of a low end driver(drop gears, or creep to 2k then step on it) so i think the 383 is the ticket.

 

anyone else want to share their thoughts?

 

if u have the tires and the rear end u should not have to creep to bad if ur happy with ur 383 desision then go for it and talk to ur builder about it. good luck man.

 

I plan on also adding Nitrous to mine

 

damn i am starting to sound like the old man in the group and iam only 22

 

HAHA!yeah me and ed are in cohoots for the same deal and i think we're both sold onb the 383.BTW zamboxl ill be on street tires and definitely a stock rear for awhile if not indefinitely.i wouldnt mind driving past a BPU supra like he was stopped,except this DARN Green 1 in town,lol

 

Hell with that, I have been running ET Streets on my stocker.

 

Really your engine builder should be able to answer this question for you pretty easy. 6.0 heads are plenty, if less compression is needed open up the chambers or go to a piston with more dish. Stay away from trying to go low with thicker head gaskets, not the way to do it when pushing boost from what i'm told. If you can't get an answer on your combo from your engine builder i'd consult with another.
J

 

DAMNIT!well im waiting to hear back from him.im thinking a 383@12psi would get it done and id only need to spin to 6k or so.

 

you did your math wrong, deck height should be negative unless he deck the block to put the pistons at zero deck. or if there in the hole then use a positive number. and its .00x, not .0xx.