I know that everyone makes a big deal over the JDM H22 engine. Ok, I understand that the engine is 200hp and VTEC, but the cost on them is well over 2k, plus you have to deal with smog, installation etc. Don't get me wrong, the H22 is an awesome engine, but suppose you took that money and put it into an H23. The H23 does have its own version of VTEC, in which the lobes open up after 5k rpm or so(even though the H22 VTEC is a lot better). I am just looking for some feedback on all of your thoughts.
the lobes open up? you may have been misinformed the h23 has no form a of vtec.. the only thing i can think of that might sound like what you are refering to is a bypass valve in the intake manifold that opens at a certain rpm but the only engines i am 100% sure have these are the h22 and the b18c and b18c5
now the h23 is a great motor for turbo, if i had an h23 i wouldnt spend my money on a h22 upgrade i would just boost it
there is an excellent thread that is 10 pages long on honda-tech about turbos and preludes.. massive amount of information there
Yeah but its not just as easy as "turbo it". From the knoledge i have attained from this site and never reading on other sites, i talked to a lot of civic and integra owners who are turboed and when i asked them about rebuild they just laughed and said its on stock internals. well from how everyone talked on here its not safe to boost on stock internals but now i know that H series motors are pretty much the only ones that are not safe to boost without a rebuild.
any motor can run boost on stock internals...its just not a lot of boost...i think a civic/integ runs 5-6 stock and we can run up to 7 stock...i know that if i were to turbo i would rebuild the whole motor to run 14+ psi
Originally posted by willmbrk I know that everyone makes a big deal over the JDM H22 engine. Ok, I understand that the engine is 200hp and VTEC, but the cost on them is well over 2k, plus you have to deal with smog, installation etc. Don't get me wrong, the H22 is an awesome engine, but suppose you took that money and put it into an H23. The H23 does have its own version of VTEC, in which the lobes open up after 5k rpm or so(even though the H22 VTEC is a lot better). I am just looking for some feedback on all of your thoughts.
Umm own version of VTEC?
That's funny it had nothing to do with lobes, it's just secondary intake runners opening to allow more airflow. The H22a also has it....
Yeah everyone seems to think it is safe to boost up to 7 on the stock internals. ask the people in the forced induction forum. i use to think it was safe but after reading a lot around there i wouldnt attempt to boost on stock internals.
how come the b-series engines can handle boost easier than the H? Are they better built? I wouldn't think my Prelude engine would be built any cheaper than a Teg or a civic.
Originally posted by LudedudeSi Yeah everyone seems to think it is safe to boost up to 7 on the stock internals. ask the people in the forced induction forum. i use to think it was safe but after reading a lot around there i wouldnt attempt to boost on stock internals.
Yes, but if you base what you do on their luck, you're just as safe running on stock internals as you are w/ a "bulletproof" bottom end. In a lude, there is no such thing as a "bulletproof" bottom or top end. After researching for 2 years, about, I found that, no matter what you do, or how much you pump into an engine build up, your engine is still going to go KABOOM, especially in a LUDE. If you look around long enough, you end up seeing as I do.
J
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Jason (AIM-->JDMSLICK96, or MSN IM-->JDMSLICK96)... For SALE: Recaro SRD Limited Edition seats, VTEC sub enclosure w/ Kicker 6x9 Free Air subwoofer (& free amp). PM w/ offers. Rest In Eternal Peace, Capt Derek Argel, Capt Jeremy Fresques, Pfc Chris Hill, & Sgt John House (all lost to Iraqi conflict).
Anybody want to buy my Lude? (Will sell in either stock or fairly modded trim).
Yeah i see what you are saying. So basically i dont even see the point in trying to boost an h series motor unless you get a flawrebuild and tune it quite often.
Yeah, I was thinking of selling my car if I can get a decent price for it. My student loans are going to hit soon. I have an 86 lined up, if I can sell my car. I like the 86 a lot better than Preludes, just from the fact it is rear wheel with LSD.
Yes, but if you base what you do on their luck, you're just as safe running on stock internals as you are w/ a "bulletproof" bottom end. In a lude, there is no such thing as a "bulletproof" bottom or top end. After researching for 2 years, about, I found that, no matter what you do, or how much you pump into an engine build up, your engine is still going to go KABOOM, especially in a LUDE. If you look around long enough, you end up seeing as I do.
J
Couldn't have said better, I wish I never boosted my car. I spent so much money and it still went bang. I would rather boost a B18a over any other honda engine. That is the motor to boost.
The H23 does have a 2 stage intake manifold but not v-tec. Instead of 4 runners it has 8 like the v-tec. At idle only 4 are open and arond 4000 rpm the second 4 open. I took mine out (plates and shaft). You loose a little bottom end but gain top end. The runners that open are long which are good for high end power and by removing the shaft you increase the size of the hole by 15-20%.
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