So i had some questions. I will be rebuilding my motor soon, and i wanted to do a high compression set up and wanted to know if anyone has done it and what compression you recommend ? I dont wonna up it too much and make it a ticking time bomb lol. So if u have any suggestions help me out please.

thanks

 

bump

 

Depends...Is it gonna be tuned after its done? If not, i probably would go much over 1 whole point of compression over stock. If you're gonna have it tuned, then 11.5 is a pretty nice number to shoot for, more power but still pump gas(premium) friendly. Probably want to get a cam too since you'd have the compression for it, although I don't know if anyone offers a cam for d17s...

 

coltcams.com makes d17 cams. i saw a couple there for grinding when i picked up my last cam.

you can mill the head down, and mill the block down .030 to bring the pistons flush.

go for it.

 

yes, im planning on tuning it, so what i think im gonna do is look around for a motor to put in my car for the mean time while im building this one.. thank alot for the advise.. and also, do you recommend any other parts besides a cam if i was to bring the comp up that high? i really am not to sure what the stock comperssion is..

 

D17A1
Found in:
2001-2005 Honda Civic DX/LX/VP
Displacement : 1,668 cc (101.8 cu in)
Bore and Stroke : 75 × 94.4 mm (3.0 × 3.72 in)
Compression : 9.5:1
Power : 115 hp (85.8 kW, 117 ps) @ 6100 rpm
Torque : 110 ft·lbf (15.2 kg/m, 149 Nm) @ 4500 rpm
RPM redline: 6750 rpm
Rev-limiter : 7200 rpm
Valvetrain : SOHC (4 valves per cylinder)
Fuel Control : OBD-2 MPFI


does that sound about right ??? would 11.5 be safe? i will also be doing a vtec head swap.. so would that be about right for a good setup ? i just wonna be safe

 

i was looking around and saw a head that was vtec-e.. what do you guys thing about it? would that be a good option ?

 

What kind of car this goin in?

 

im putting it in my es1

 

What's your goal for power?

 

It's still gonna be my dd.. so nothing too crazy just some decent power that will also pass cali smog

 

Oh snap can't help u there, I know nothing about cali smog testing

 

im really not too sure either on what will pass or not... but hopefully someone on here knows lol :D.. or i might call some friends up with tuned cars and ask.. but im sure there are a few things i can do without smog issues.

 

no one has any ideas?

 

Call your friends then..

 

lol hmmmmmm

 

Once you change the compression your numbers will change considerably on an emissions test. Without some sort of tuning, you more than likely won't pass. I personally did a mix/match of parts just to get my car running and ended up with roughly 10.3/1 compression ratio. When I smogged, the tech said "it's not passing (scratches his head)...it's like the head has been milled too much or something because this thing is running hot." I laughed a little bit because without me even saying anything he pinpointed the problem just by looking at the test results. Yeah, I milled the head too far but he was able to make it pass by retarding the distributor waaaaaaaaay back. I don't think you can do this to yours without some sort of aftermarket tuning since you don't have a distributor on yours.

 

hey thanx alot for the reply.. that really helps me out alot