CTR PISTONS

2001ITRYELLOW · Post by **2001ITRYELLOW** » July 24th, 2007, 5:43 am

IF I PUT IN CTR PISTONS WILL I LOSE POWER AND HOW MUCH POTENTIAL WILL I HAVE? MODS WOULD ONLY BE BOLT ONS AND NOTHING MORE (CATBACK, HEADER TEST CAI 2.5" ALL AROUND)UNTIL LATER CAMS, VALVES AND SUCH....

Dave_B · Post by **Dave_B** » July 24th, 2007, 8:37 am

2001ITRYELLOW wrote:IF I PUT IN CTR PISTONS WILL I LOSE POWER AND HOW MUCH POTENTIAL WILL I HAVE? MODS WOULD ONLY BE BOLT ONS AND NOTHING MORE (CATBACK, HEADER TEST CAI 2.5" ALL AROUND)UNTIL LATER CAMS, VALVES AND SUCH....

Easy with the all caps bud...

CTR pistons will yeild a higher CR. What does that mean? It means you have to potential to make more power... however to utilize this higher CR, you might want to look into the option of cams at the same time.

2001ITRYELLOW · Post by **2001ITRYELLOW** » July 24th, 2007, 5:22 pm

so how will the stock motor run and what gains can i get with just ctr pitsons beside higher cr

SerGTR · Post by **SerGTR** » July 25th, 2007, 1:36 am

if u just throw CTR pistons in stock motor I think the most u'll get is 5hp, BUT if you get some aggressive cams and some tunning u can get MUCH more power

Dave_B · Post by **Dave_B** » July 25th, 2007, 9:36 am

2001ITRYELLOW wrote:so how will the stock motor run and what gains can i get with just ctr pitsons beside higher cr

You will see some HP gains with the higher CR, but you won't be utilizing that CR without some cams.

I fully plan on P&Ping my head, cams, springs and cam gears. I'm going with a fairly mild cam because my car is still my DD.

I plan on around 200+ WHP when done for now.

USDM_R_TYPE · Post by **USDM_R_TYPE** » January 8th, 2008, 2:42 am

watch out for piston slap, not too sure about this setup.

Rdriver · Post by **Rdriver** » January 16th, 2008, 3:14 am

I ran CTR pistons and stock cams in my old R and put down around 193 whp with intake header exhaust. I spent a lot of money getting that thing tuned. I maxed out 310 cc injectors and had a lot of issues with it leaning out. I worried the whole time I had the car about engine management. I ran it off a VAFC then moved on to Hondata. After it was sold to a local he traded it in with a gsr computer, stock injectors gsr header and exhaust. One of my other friends ended up buying the car from the car lot and drove it that way for over year as his daily driver.

So, I think if you have a stock height head and run 93 octane you have a chance. That engine made it through at least 25k hard miles and 4 owners. Hope this helps.

Junesong · Post by **Junesong** » January 25th, 2008, 10:44 am

Why do people always seem to want the JDM CTR pistons instead of the JDM ITR ones. Is it because the ITR ones have just too high of a C/R?

SerGTR · Post by **SerGTR** » February 17th, 2008, 4:35 pm

Junesong wrote:Why do people always seem to want the JDM CTR pistons instead of the JDM ITR ones. Is it because the ITR ones have just too high of a C/R?

I think its a little opposite, CTR has higher compression than ITR

DCR26 · Post by **DCR26** » March 1st, 2008, 7:57 pm

im pretty sure the C/R of JDM CTR is 10.8:1 and JDM ITR is 11.1:1. If i can afford it once i rebuild id buy one of these pistons i just wonder how it would run on 91oct

ITRCA

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