225cc head flow numbers, comments opinions
Thread Starter
Teching In
Joined: Feb 2008
Posts: 9
Likes: 0
225cc head flow numbers, comments opinions I dont normaly post here, i just usually read the threads... but figured i would share this to see what people thought...
SF600 Test Bench
225cc head-ported
2.055 – 1.600
4.030 Bore test fixture
No pipe on exhaust
LIFT Intake Exhaust
.100” -70.88 -53.20
.200” 149.30 106.13
.300” 212.57 145.73
.400” 275.45 181.83
.500” 292.18 213.70
.550” 314.65 220.11
.600” 323.64 226.49
.650” 328.14 229.68
.700” 325.89 232.87
SF600 Test Bench
225cc head-ported
2.055 – 1.600
4.030 Bore test fixture
No pipe on exhaust
LIFT Intake Exhaust
.100” -70.88 -53.20
.200” 149.30 106.13
.300” 212.57 145.73
.400” 275.45 181.83
.500” 292.18 213.70
.550” 314.65 220.11
.600” 323.64 226.49
.650” 328.14 229.68
.700” 325.89 232.87
Thread Starter
Teching In
Joined: Feb 2008
Posts: 9
Likes: 0
relatively cheap heads actually, i had a porter work them over for me..... not AFR's..
all non sponsor stuff, so i kept names out...
also remember, the exhaust side is without a pipe, where as AFR's are flowed with a 1 7/8's( believe) so the exhaust side should look a tad lower... they also flowed theirs on a larger fixture 4.125(if i recall correctly) instead of the 4.030 that i had mine flowed on... so there are a couple differences there.....
just curious if people think they will make good power.... etc.... if i got a good head on my hands etc..
all non sponsor stuff, so i kept names out...
also remember, the exhaust side is without a pipe, where as AFR's are flowed with a 1 7/8's( believe) so the exhaust side should look a tad lower... they also flowed theirs on a larger fixture 4.125(if i recall correctly) instead of the 4.030 that i had mine flowed on... so there are a couple differences there.....
just curious if people think they will make good power.... etc.... if i got a good head on my hands etc..
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I'd be willing to bet those are the new TSP heads, man those guys make some good stuff!!
I'd bet with a stock bottom end you could see 500whp with a good cam like the T-Rex!!!
I'd bet with a stock bottom end you could see 500whp with a good cam like the T-Rex!!!
Com'on, don't leave us hanging
Very nice numbers.I do know what heads they are since this isnt the only site I visit.Interesting to see how well they do with a little work by someone who knows what he`s doing.Now for some track times!
they'll never make any power without a 252/266 @ .050 on a 108.5 LSA