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winter project suggestion ? ..and should I stay with H23vtec ?

 
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Old 08-19-2010, 08:34 PM
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winter project suggestion ? ..and should I stay with H23vtec ?

So my 'Lude is currently boosted making 292whp on a Dynodynamics, stock internals. It's a blast to drive, but everytime I boost and take it to red-line I don't feel all too comfortable doing it. I've heard of the expression that the H-series stock block on boost is a "ticking time-bomb". Well that crosses my mind everytime I take it to red-line. Even with excellent Air/Fuel ratios at WOT I still have this feeling. It's a matter of time before something goes horribly wrong. My tune is very good, but the fact that its a stock piston in there with stock rods raise my eyebrows. I can always lower the boost to lengthen the internals' life-line, but why do that when I'm tuned to run 14-lbs ?

So, my winter project idea .. Mahle-gold pistons on Eagle rods. The pistons are 87mm bore and 10:1 compression. With this setup I will be running the GT3076R turbo and will shoot for 450-500whp, hopefully pump-gas (93 octane) will allow me to reach it. The FRM cylinder walls should hold 500whp at 87mm bore without any problems. I will be upgrading my injectors for this setup (currently running 680cc). I will also be upgrading my throttle body and intake manifold to something that flows more efficiently. And this will be my daily driver from the months of April to September. What do you all think about this idea? .. Also need a recommendation on which cams to use instead of the OEM h22.

Also, should I build this current h23vtec motor or should I do this to a straight h22 motor ? .. Reason I am asking is because my h23vtec setup limits me from revving all that high ( ~7200 rpm max, but usually rev to ~ 7000 ) due to reasons of possible spun bearings because of high stroke ( 95mm ). If I build the h22 block I'll be able to rev it higher without worrying too much about spun bearings and such. The difference of the h23vtec versus the straight h22 build is around 20-30 wtq near the 500 whp area (assuming), nothing that a boost controller can't fix.

Sucks to say this, but the car is going off the road in 1 month due to school. This is why I'm thinking of this project to keep me occupied while it's parked.

So guys, let me know if I'm thinking right here and whether I should continue.
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Old 08-21-2010, 06:21 PM
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Re: winter project suggestion ? ..and should I stay with H23vtec ?

wow, such a hot topic .. LOL
anyways, I'm doing this .. 500whp coming to a summer near you.









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Old 08-24-2010, 05:34 PM
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Re: winter project suggestion ? ..and should I stay with H23vtec ?

make it happen ernest!
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Old 08-24-2010, 07:23 PM
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Re: winter project suggestion ? ..and should I stay with H23vtec ?

i'll race you to 500hp





no seriously, this fall/winter, its happening
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Old 08-24-2010, 08:55 PM
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Re: winter project suggestion ? ..and should I stay with H23vtec ?

The reason people refer to most boosted stock internal hondas as ticking time bombs is because of the piston rings. get stronger rings and a fresh bore for them to mate to and your golden. Except in H series cases, you HAVE to sleeve for stronger rings
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Old 08-26-2010, 10:00 AM
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Re: winter project suggestion ? ..and should I stay with H23vtec ?

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Originally Posted by 2.2Lude View Post
The reason people refer to most boosted stock internal hondas as ticking time bombs is because of the piston rings. get stronger rings and a fresh bore for them to mate to and your golden. Except in H series cases, you HAVE to sleeve for stronger rings
its not the piston rings that give the problems .. its the piston ringlands. Stock cast pistons are just too weak
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