H22 Stroker Engine update.... 2point6
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From: Tucson, AZ, USA
H22 Stroker Engine update.... 2point6
Set-up: As of 7/9/05
Car: 1990 Accord 4 door Lx
Engine Block: '93 H22a "bored and stroked" to 2.44ltrs of displacement built by Collective Racing. Custom 98mm Crank (Balanced and nitrited), 89mm bore Darton sleeves, Crower Pro-billet rods, Custom 12/1 compression 89mm JE pistons, Prodrive oil pump, ATR crank pulley, manual timing belt tensioner conversion, ARP main studs.
Cylinder head: Ported and polished by Collective Racing, Web Cams camshafts (89/267), Web Cams springs and Titainium retainers, ITR LMAs, Modified stock intake manifold, Hondata intake manifold gasket, Erick's Racing 70-68mm Throttle body, RC engineering 440cc Fuel injectors, B&M fuel pressure riser and Guage, STR cam seal, STR cam gears, SMSP 4-1 header, ARP head studs, Cometic head gasket.
Transmission: T2T4, prodrive 4.7 FD, carbon synchros
Misc: AEM 3" cold air intake, NGK wires, Hondata S200, 2 1/2" crunch bent exaust.
Just an update: My engine has curently hit 56K miles, 3% leakdown cylinders 1-4, Dynoed 241.8 WHP and 188.8WTQ (on a Dynapak) and still driven hard all the time. It will be an interesting comparison with my upcoming new engine set-up. Changes to my current engine to date are: Intake manifold changes from the Euro R to a modified stock manifold, factory aluminum oil pan, and I shimmed my oil pump. During the dyno passes, I was seeing 110+psi oil pressure at 8K RPM. I feel this is slightly high and can be robbing me of a few HP compared to my earlier dyno passes. The manifold changes seem to be working nicely as well. Just to note, my previous dyno reading were made on a dynojet. I am told that the dynapak reads slightly lower in HP (about 10whp), but can be configured to read almost the same as a dynojet if the measurement is based on time of acceleration. I don't know if this makes it easier to compare my progress, but I thought I should note it. My readings were not measured in time of acceleration. Over all I feel this engine has been very consistant in power output over the years and has proved to be fairly reliable, depending on your outlook. My new set-up should prove that a larger displacement can be equally reliable... we will see
Car: 1990 Accord 4 door Lx
Engine Block: '93 H22a "bored and stroked" to 2.44ltrs of displacement built by Collective Racing. Custom 98mm Crank (Balanced and nitrited), 89mm bore Darton sleeves, Crower Pro-billet rods, Custom 12/1 compression 89mm JE pistons, Prodrive oil pump, ATR crank pulley, manual timing belt tensioner conversion, ARP main studs.
Cylinder head: Ported and polished by Collective Racing, Web Cams camshafts (89/267), Web Cams springs and Titainium retainers, ITR LMAs, Modified stock intake manifold, Hondata intake manifold gasket, Erick's Racing 70-68mm Throttle body, RC engineering 440cc Fuel injectors, B&M fuel pressure riser and Guage, STR cam seal, STR cam gears, SMSP 4-1 header, ARP head studs, Cometic head gasket.
Transmission: T2T4, prodrive 4.7 FD, carbon synchros
Misc: AEM 3" cold air intake, NGK wires, Hondata S200, 2 1/2" crunch bent exaust.
Just an update: My engine has curently hit 56K miles, 3% leakdown cylinders 1-4, Dynoed 241.8 WHP and 188.8WTQ (on a Dynapak) and still driven hard all the time. It will be an interesting comparison with my upcoming new engine set-up. Changes to my current engine to date are: Intake manifold changes from the Euro R to a modified stock manifold, factory aluminum oil pan, and I shimmed my oil pump. During the dyno passes, I was seeing 110+psi oil pressure at 8K RPM. I feel this is slightly high and can be robbing me of a few HP compared to my earlier dyno passes. The manifold changes seem to be working nicely as well. Just to note, my previous dyno reading were made on a dynojet. I am told that the dynapak reads slightly lower in HP (about 10whp), but can be configured to read almost the same as a dynojet if the measurement is based on time of acceleration. I don't know if this makes it easier to compare my progress, but I thought I should note it. My readings were not measured in time of acceleration. Over all I feel this engine has been very consistant in power output over the years and has proved to be fairly reliable, depending on your outlook. My new set-up should prove that a larger displacement can be equally reliable... we will see
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Joined: Nov 2003
Posts: 7,050
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From: Single track SD
Re: H22 Stroker Engine update.... 2point6 (N_A_is_best)
are you still running the balancer shaft? just curious, many people say these thing rob a bit of power? dunno.. im a b-series guy lol.. nice build btw..good luck
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2point6
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Feb 27, 2006 09:39 AM
