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AZ90DATEG · 02-28-2007, 03:25 PM

Well today i got my transmission installed and i really like it , Feels A lot Quicker , Its a Integra XSI J1 tranny , I love the gearing and being on the highway isnt to bad , i was at 4000 rpms at almost 85 mph. Today i also got a really good deal on a JDM ITR head from a friend of mine , i paid 650 for it , it ran really strong when it was in his car and it was only in there maybe 2k miles. NOw that i have the head im going to go LS/VTEC really soon here , so i went to a well known Honda shop around here , and he said he would do it for 850$ , 1050$ if i wanted a breather box i think he said? I told him my motor was fully rebuilt with about 500 miles on it and he said basically for 1000$ he could do the LS/VTEC if i brought the ecu and he would use my stock Pistons, he said he has done many LS/VTEC"s using the LS pistons that now have over 100k miles. Isnt the compression to low though if you use LS pistons? He said using the stock block , the b18c5 head,breather box , and after he tunes it id be looking at 160-175 whp or more. Sound right? He also said using the LS pistons it would be able to rev to 7800 before the power curve falls. Also what ecu should i buy ? its a obd1 92 teg , thanks

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skata89 · 02-28-2007, 03:54 PM

You otta throw some jdm ctr pistons or something for a little bit more compression. But on using the LS ones I have no idea

Hatch_R · 02-28-2007, 04:06 PM

1. Do it yourself and save the $1000.

2. Is the bottom end completely stock? If you want to rev it higher than the 7k rpm LS revlimit, get some ARP rod bolts and I'm assuming you got new bearings with the rebuild so they should be ok.

3. The LS pistons wouldn't have 'too low' of a compression, depending on what you want to do. That'd be a perfect setup if you want to do forced induction later on, but if you want to stay N/A then you could get some Si or CTR pistons for high compression. (check out http://www.c-speedracing.com/h...c.php to calculate your compression with different pistons)

4. You can use your stock ECU, just get it chipped and tuned.

AZ90DATEG · 02-28-2007, 04:34 PM

Thanks for the info though. I dont think i can use the stock ecu though since im installing a VTEC head

crash my EG · 02-28-2007, 09:55 PM

you can use a p-28 or p-72. the p28 pop's v-tec harder. the p-28 is from a single cam and the p-72 is from a GSR.

Hatch_R · 02-28-2007, 10:07 PM

Quote:

Originally Posted by crash my EG

you can use a p-28 or p-72. the p28 pop's v-tec harder. the p-28 is from a single cam and the p-72 is from a GSR.

Haha you're a retard. One ECU won't make your vtec 'pop' any harder than a different ECU. If you're building an LS/vtec, you shouldn't be running a stock ECU anyway so it really doesn't matter what kind of ECU it is as long as it's chippable to be able to tune it. And to the OP, you can convert a non-vtec ECU to vtec and then tune it when you get the engine running.

b18c eJ1 · 02-28-2007, 10:30 PM

If your block isn't going to be balanced, then don't rev it past 8000-8500 MAX RPM.

You can rev it to 9000+ rpm, but your motor won't last very long.

02-28-2007, 04:06 PM	#3
Hatch_R Member Join Date: Jul 2004 Location: Meridian, ID, USA Posts: 2,613	1. Do it yourself and save the $1000. 2. Is the bottom end completely stock? If you want to rev it higher than the 7k rpm LS revlimit, get some ARP rod bolts and I'm assuming you got new bearings with the rebuild so they should be ok. 3. The LS pistons wouldn't have 'too low' of a compression, depending on what you want to do. That'd be a perfect setup if you want to do forced induction later on, but if you want to stay N/A then you could get some Si or CTR pistons for high compression. (check out http://www.c-speedracing.com/h...c.php to calculate your compression with different pistons) 4. You can use your stock ECU, just get it chipped and tuned. __________________ 98 4door Integra GS DB Squad Member #107

02-28-2007, 04:34 PM	#4
AZ90DATEG Join Date: Dec 2006 Location: Phoenix, AZ, USA Posts: 58	Thanks for the info though. I dont think i can use the stock ecu though since im installing a VTEC head __________________ 1986 Porsche 944 Turbo ( 1st car, Sold August 01 ) 1992 Honda Prelude h22a Turbo ( Sold March 05 ) 1990 Honda Civic H/B b16 swap ( Sold June 05 ) 1995 Civic Si H/B b18c block/b16 Head ( Sold december 05) 2001 Acura Integra GSR (traded in May 06) 2005 Dodge SRT-4 Stolen December 06 * Current Car* 1992 Acura Integra LS, New b18a1 500 miles on it, XSI trans, Going LS/VTEC * Current Bike* 2005 Kawasaki ZX10R

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02-28-2007, 03:54 PM	#2
skata89 Junior Member Join Date: Aug 2005 Location: beach, VA, US Posts: 802	You otta throw some jdm ctr pistons or something for a little bit more compression. But on using the LS ones I have no idea

02-28-2007, 09:55 PM	#5
crash my EG Join Date: Jan 2007 Location: oroville, CA Posts: 31	you can use a p-28 or p-72. the p28 pop's v-tec harder. the p-28 is from a single cam and the p-72 is from a GSR.

02-28-2007, 10:30 PM	#7
b18c eJ1 Join Date: Feb 2007 Location: city of hoez, CA Posts: 357	If your block isn't going to be balanced, then don't rev it past 8000-8500 MAX RPM. You can rev it to 9000+ rpm, but your motor won't last very long.