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#401
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I like the 2 stroke idea... 100 hp per 500 cc on 89 octane on modern 2 stroke snowmobile engine from the factory... 1400 hp 428 or 1750 hp on a 535 anyone. Good luck keepin it cool...
You can test coatings while your at it. |
#402
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Paul Gast tried to race a two stroke in Pro Stock motorcycle in the 70's and 80's.
While he tried very hard, he finally gave up and went 4 stroke. His efforts were very impressive, just never found much success. Was it rules or potential, I don't know. |
#403
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__________________
1969 Firebird, Tx3-455/468 machined by CVMS E-heads by Dave Wilcox/Comp Cams 300B-6 flat solid 850DP on E-85 by Eric Niefert/T2 1" plastic spacer T-400/PTC 4000/390's/30x9 Hoosier radial slicks,#3400 1.38 60' 6.32 @ 108 MPH at Northeast Dragway NC 5/23/15 (9th pass on new engine) https://m.youtube.com/watch?v=ePCu2v...ature=youtu.be 1.37 60' 6.26 @ 109 half track, 9.86 @ 136 1/4 mile, #3350 11/26/16 at Richmond Dragway (125th pass on new engine) |
#404
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"Fast by Gast"- I still have one of his small catalog/pamphlet advertisements from the eighties, when I had an H-1.
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1969 Firebird, Tx3-455/468 machined by CVMS E-heads by Dave Wilcox/Comp Cams 300B-6 flat solid 850DP on E-85 by Eric Niefert/T2 1" plastic spacer T-400/PTC 4000/390's/30x9 Hoosier radial slicks,#3400 1.38 60' 6.32 @ 108 MPH at Northeast Dragway NC 5/23/15 (9th pass on new engine) https://m.youtube.com/watch?v=ePCu2v...ature=youtu.be 1.37 60' 6.26 @ 109 half track, 9.86 @ 136 1/4 mile, #3350 11/26/16 at Richmond Dragway (125th pass on new engine) |
The Following User Says Thank You to 455firebird1969 For This Useful Post: | ||
#405
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[QUOTE=mike leech;5104899]No he highlighted it. $500 in coatings 10-20 hp. He got it and so did I. I too would get right off of $500 for 20 hp. NOT GONNA HAPPEN WITH COATINGS!!!!!!!
Don't beat me up too bad, actually spent $800.00 in coatings: Combustion chambers Exhaust ports Both sides of exhaust valves Face of intake valves Piston tops & skirts Wrist pins Main, Rod and Cam bearings Windage Tray Can't be specific on any gains (if any at all), but sure not 20 hp, was a fresh build so no baseline to compare. Hopefully will see some benefit when it comes apart to freshen. Jess
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#406
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Quote:
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#407
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[QUOTE=janderson;5106548]
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EHTTFMF! Being dead, it is not hard on you. You don't even know you're dead. It is hard on everyone else that is not dead. BEING STUPID WORKS THE SAME WAY! The rest of us suffer. |
#408
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Will do Mike, should have something this spring/summer.
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#409
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Originally Posted by Bob Crueger
Why again does an aluminum head need slightly higher in compression than an iron head to create the same power? Quote:
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#410
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Evinrude ETEC Outboard motors. The bugs are worked out...
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#411
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Hmmm yea, my can Red Oxide Primer spraycan may have value afterall. |
#412
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I'm sure coatings do something, it's just hard to tell how big of an impact they make. If they were very effective for their costs, every production engine on the planet would have coated parts. They don't.
People don't use aluminum heads because they are less efficient. They use them because they are lower weight and easier port. Quote:
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#413
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Stability of Cast Iron, integrated valveseats, really good Street/Strip flow for HP, etc has my attention. so if an OPTIMIZED high HP aluminum head was DONE, then implemented in as-cast CAST iron, would it sell. i think so.
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12.24/111.6MPH/1.76 60'/28"/3.54:1/SP-TH400/469 R96A/236-244-112LC/1050&TorkerI//3850Lbs//15MPG/89oct Sold 2003: 12.00/112MPH/1.61 60'/26"x3.31:1/10"/469 #48/245-255-110LSA/Q-Jet-Torker/3650Lbs//18MPG 94oct Sold 1994: 11.00/123MPH/1.50 60'/29.5"x4.10:1/10"/469 #48/245-255-110LSA/Dual600s-Wenzler/3250Lbs//94oct |
#414
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I am a BIG fan of cast iron. Your points are right on HIS. And don't forget they are low cost.
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#415
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Cast iron sucks, I want heat in the cyl not the head. JMO
Real question, why don't most OEM still use iron heads?
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John Marcella Marcella Manifolds Inc. john@marcellamanifolds.net ph. 248-259-6696 |
#416
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Quote:
Jack
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Visner Engine Development, LLC. |
#417
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Weight savings vs cost of material.
Don't forget plastic intakes since the 90's.
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If you cant drive from gas pump to gas pump across the map, its not a street car. http://s207.photobucket.com/albums/b...hop/?start=100 |
#418
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[QUOTE=john marcella;5107891]Cast iron sucks, I want heat in the cyl not the head. JMO
So is it accepted or not, that at a given compression and all things else equal, a cast iron head will make more power that an aluminum head? I've been reading it here, and everywhere else, for years. If that's the case, YOS. |
#419
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[QUOTE=Bob Crueger;5107960]
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Truth is I don't really know for sure. But my logic says that iron will not make any more hp. But I don't want to get in that debate.
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John Marcella Marcella Manifolds Inc. john@marcellamanifolds.net ph. 248-259-6696 |
#420
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[QUOTE=john marcella;5107972]Your opinion sucks.
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The Following User Says Thank You to Bob Crueger For This Useful Post: | ||
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