Prelude Turbo!!!!!!!!!!!!!!!!!!

zooyork22 · Post by **zooyork22** » Wed Jun 13, 2007 6:02 pm

yeah I know about Mahle Gold, but do you know they are COATED. Coating eventually wears off am I wrong? Never the less, the cylinder walls are fiberglass reinforced which are EXTREMELY fragile and will crack. You can run safely about 5psi I know for sure on the H22 though.

Jar Jar Binks · Post by **Jar Jar Binks** » Wed Jun 13, 2007 6:12 pm

Jacques;26734 wrote: If this is to be daily-driven, it's a very good idea right off the bat to upgrade your pistons, rods, and sleeves to build up the bottom end.

nah... dont matter... the auto tranny will blow first

prelude98 · Post by **prelude98** » Wed Jun 13, 2007 8:15 pm

I know a few guys that have run around 8-10 psi on the h22 with just upgraded pistons but you have to keep a close eye on things. Its alot safer to have the block sleeved. The auto tranny probably won't handle the abuse.

Mwprs37 · Post by **Mwprs37** » Wed Jun 13, 2007 9:04 pm

The FRM sleeves are NOT the weak point on boosted H22's. Its a common myth. You find me one person that blew his/her motor due to the sleeves cracking. The ring lands on the pistons are the weak point. They can't handle much more than 250-275 whp. Search Honda-tech for info in the FRM sleeves if you don't believe me. There are SEVERAL boosted H22's on stock sleeves using Mahles pushing 400+whp... I'm currently building my turbo setup. I have about $2500 into it. I still am missing a turbo, clutch and injectors.

IMO to answer the original question, don't waste your time. Sell it and buy a 4th gen VTEC, with the extra cash use it to start your kit.

m6speed · Post by **m6speed** » Wed Jun 13, 2007 10:26 pm

Mwprs37;48981 wrote:The FRM sleeves are NOT the weak point on boosted H22's. Its a common myth. You find me one person that blew his/her motor due to the sleeves cracking. The ring lands on the pistons are the weak point. They can't handle much more than 250-275 whp. Search Honda-tech for info in the FRM sleeves if you don't believe me. There are SEVERAL boosted H22's on stock sleeves using Mahles pushing 400+whp... I'm currently building my turbo setup. I have about $2500 into it. I still am missing a turbo, clutch and injectors.

IMO to answer the original question, don't waste your time. Sell it and buy a 4th gen VTEC, with the extra cash use it to start your kit.

true story

miz92lude · Post by **miz92lude** » Sat Jun 14, 2008 11:51 pm

zooyork22;48885 wrote:Just make sure to not boost too much since the sleeves are extremely week on the H22 and will crack most likely around 8psi or more. That I know based on other prelude clubs with people boosting at that amount and cracking the sleeve.

wrong

zooyork22;48924 wrote:yeah I know about Mahle Gold, but do you know they are COATED. Coating eventually wears off am I wrong? Never the less, the cylinder walls are fiberglass reinforced which are EXTREMELY fragile and will crack. You can run safely about 5psi I know for sure on the H22 though.

wrong

Mwprs37;48981 wrote:The FRM sleeves are NOT the weak point on boosted H22's. Its a common myth. You find me one person that blew his/her motor due to the sleeves cracking. The ring lands on the pistons are the weak point. They can't handle much more than 250-275 whp. Search Honda-tech for info in the FRM sleeves if you don't believe me. There are SEVERAL boosted H22's on stock sleeves using Mahles pushing 400+whp... I'm currently building my turbo setup. I have about $2500 into it. I still am missing a turbo, clutch and injectors.

IMO to answer the original question, don't waste your time. Sell it and buy a 4th gen VTEC, with the extra cash use it to start your kit.

right

modthesol · Post by **modthesol** » Sun Jun 15, 2008 12:17 am

bumping over a year old thread FTL

TurboFreak · Post by **TurboFreak** » Sun Jun 15, 2008 2:52 am

buy phates prelude and call it a day

MyfodoSi · Post by **MyfodoSi** » Sun Jun 15, 2008 2:56 am

TurboFreak;120042 wrote:buy phates prelude and call it a day

+ a million

RSXSLVR79 · Post by **RSXSLVR79** » Sun Jun 15, 2008 5:32 am

All these people above me are correct. H-series motors are not the best to boost, unless you swap lower compression pistons. The FRM sleeves burn up stock piston rings very badly, especially around 150k miles on average.