wassup im building a lsv motor i wanna here everyone opinion and how much power you think im gonna make on E85


GSr head stock port
skunk2 springs nd retainers nd valves
edlebrock performer x intake manifold
skunk2 70mm tb
skunk2 pro 1 cams

ls bottom end stock sleeves
81.5mm rs machines ctr spec pistons
eagle h beams rods
stock crank
b16 tranny with lsd
thinking about going with a rmf header or hytech big tubes
i will be tuning car on hondata s300 on E85 gas everything will be in a crx
how much power u think it should make

 

good luck with those pistons and that head. put it together and let us know how that goes

 

my boy has the same build and the motor is lasting 2 years strong so far on pump gas..

 

good and bad opinions are welcomed

 

If your car is lowered the big tube header wont work very well. A friend of mine had one on his CRX and it was about an inch off the ground.

 

my car is raised up nd i have a full race traction bar.....

 

You have ctr pistons.. thats all i need to say..

14.35 CR as it sits right now.

 

LOL cr is cr what can we do but love it

 

Dude...he's not referring to the CR. He's referring to the sides of the pistons hitting the quench areas on the head.

Have fun with that.

 

refer back to my post...have fun with that

 

CR is unrunable on gas.. and if ur going to run that much Cr, get a better head setup.. and bigger cams

you dont have enough room with ctr pistons for cams or head clearence, ur going to tap the head.. but because your friend has it, its ok..

 

Yikes. RS Machine CTRs WITH LS Crank/Bottom end? Either your friend is lying or he doesn't know what he has in his car. That's a recipe for disaster. I remember my machinist and I measuring that EXACT same setup, and even he was like "Whoa, I wouldn't take a chance like that with this setup anymore than I would trust a sex offender with my daughter in the same house".

I wiped my tears of laughter as I walked slowly back to my car.

 

damn gooodlookin on the feed back what if i use a b16 head same thing?

 

lmfao epic analogy (I think that's what that is.. did't pay attention to much in english class lol)

I'd rethink the setup and figure out what infact your boy is running..

 

/\/\/\/\ Can you elaborate on this comment. Im running E85 on my current setup. 14.8:1 (static) CR W/ Pro 3's b16 head flowed 287 @ .500. You seem to be alot more knowledgeable than me. So i wouldnt mind your input.

 

E85 isnt pump gas thats a pretty simple question


and run the ITR pistons not CTR. CTRs only work well with a b16 stroke

 

first if you want piston to valve impact and hearing the sweet sound of disaster be my guest. try putting a b16 head intsead of the gsr. if you got your gsr head use p30 pistons you'll be in the high 11.8:1 or low 12 i think, depending on head gasket you use. now if you use a b16 head you have a better chance with ctr pistons. even have you mechinist cot bigger valve releases in the piston to use a nice cam.........

my setup now
b18b block
acl race bearings
arp head studs
12.7:1 supertech 82mm pistons
stock ls rod with arp's shot peened nitrated
fully balanced and blueprinted

head is b16 pr3
arp main studs
pro1's supertech high comp flat valve and springs, itr retainers
ported and polished
stock dizzy with ngk 8mm wires
99 si b16 ngk laser cut spark plugs 10 bucks a plug
skunk2 intake mani, 70mm throttle body
walbro 255lph fuel pump
440rc injectors aem pressure reg.
3inch short ram with v stack
hytech step tube header 2 1/2
2 1/2 exhaust all the way back to a hks tip

itr 4.7 tranny
comp clutch street 12 pound flywheel
comp clutch stage 4 street/strip 6 puck
wave trac lsd

still waiting on tune will post video and numbers

 

who did the machine work on the block?

 

Sorry, i didn't see this comment before.

The max that "I" would run is around 13.0 cr on pump gas, i have my own motor at this, however, this is not what i recommend for opitum power if your tuner isn't really good @ what he does.

The most CR you need on a pump gas motor to accept all types of cams is around 12.0~12.1CR give or take a few points.


E85 isn't considered pump gas in my book, its almost considered 100+oct in some points.. and well worth running if you can find it.

Here in louisiana you can't

100+ oct vs 93 pump gas.. your limited to the amount of CR.. i'm not saying its impossible, i've just never seen it.. with that said and all comments about compression ratio aside.. he'd tap the head.. so CR doesn't even come into play yet, as the motor won't even run..lol