What should I expect for HP with a 230/236 on stock heads?
07-15-2004, 06:42 AM
#16
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Join Date: Feb 2002
Location: Bridgewater, MA
Posts: 5,645
This particular cam (except on a 114lsa) with homeported heads peaked @ 5900rpm. I then added ported heads and it peaked @ 6k and lost 7rwhp by 6.2k which isnt bad. This cam will be @ 6k though like bunker mentioned.
As far as the hotcam, those cars here with similar mods to me trap about 4-5mph less. If I was a betting man, I'd take the car with the XE230/236 in a manual tranny car. For some reasons, I have seen some nice times with auto hotcammed cars (mph isnt there), but the et is good.
As far as the hotcam, those cars here with similar mods to me trap about 4-5mph less. If I was a betting man, I'd take the car with the XE230/236 in a manual tranny car. For some reasons, I have seen some nice times with auto hotcammed cars (mph isnt there), but the et is good.
07-15-2004, 08:54 AM
#17
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Join Date: Dec 1999
Location: Jupiter (NPB), Fl
Posts: 3,852
Originally posted by bunker
The point is this particular cam falls on its face at 6krpm, seen it too many times even on the dyno those XE cams past 6k rpm just fall like rocks.
The point is this particular cam falls on its face at 6krpm, seen it too many times even on the dyno those XE cams past 6k rpm just fall like rocks.
07-15-2004, 09:03 AM
#18
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Join Date: Dec 2002
Location: Gloucester-Spfld Mass
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My 306 makes more power after 5800. Follow the RPM chart of a particular cam.
304 is 1000-5000
305 is 1500-5500
306 is 1800-5800
If you have ported heads expect the rpm to go up a couple hundred RPM's depending on the porting.
1.6 Rollers give another 50 RPM's.
Free flowing exhaust gives about 60 RPM's
Remember these are rough guess-timates so a cam in it's stock form gives that range, but when combined with the other factors like better heads and exhaust you can achieve a lot more RPM meaning more power higher.
304 is 1000-5000
305 is 1500-5500
306 is 1800-5800
If you have ported heads expect the rpm to go up a couple hundred RPM's depending on the porting.
1.6 Rollers give another 50 RPM's.
Free flowing exhaust gives about 60 RPM's
Remember these are rough guess-timates so a cam in it's stock form gives that range, but when combined with the other factors like better heads and exhaust you can achieve a lot more RPM meaning more power higher.
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