HKS 272 or 264?
- Thread starter camry90
- Start date
I dunno, how high does that thing spool? How high until the exhaust housing chokes it out? You should determine what kinda power you want to make (check), decide what turbo will do it (check?), then buy only as much cam as you need to make sufficient use of it. I.E. if your turbo doesn't spool until 5k 272's would be the obvious choice as they'd rev a bit higher. But if that thing's about as snappy as s stocker 264's would likely be a better bet.
Have you thought about maybe using GSC camshafts like the S1's
Specs for GenII heads:
S1 -- Good for 300-450whp
Intake: 268 Duration 9.7mm Peak lift
Exhaust: 268 Duration 9.7mm Peak lift
Gen 2:
S1
268 9.7mm 225 @ 1 MM CL of 110
268 9.7mm 225 @ 1 MM CL of 112
I have a set coming to me that I may not be able to use.
Specs for GenII heads:
S1 -- Good for 300-450whp
Intake: 268 Duration 9.7mm Peak lift
Exhaust: 268 Duration 9.7mm Peak lift
Gen 2:
S1
268 9.7mm 225 @ 1 MM CL of 110
268 9.7mm 225 @ 1 MM CL of 112
I have a set coming to me that I may not be able to use.
RedCelicaTRD
Moderator
I agree. Go with the smallest ones available.
check the cam test:
http://www.cj-motorsports.com/camtest.htm
I would go for the 264s over the 272s. The 264s are aggressive enough to allow you to meet your power goals while still maintaining a decent level of daily driveability.
Don't forget your adjustable gam gears as well
http://www.cj-motorsports.com/camtest.htm
I would go for the 264s over the 272s. The 264s are aggressive enough to allow you to meet your power goals while still maintaining a decent level of daily driveability.
Don't forget your adjustable gam gears as well
did you even bother to read the cam test?
you have already said that you have XX dollars put into this project, so why buy something because its cheaper and convenient? Wouldn't you rather shop around and spend a tad more and get something that is better overall?
tbh, do a 20 thou overboard, run some new pistons, get new big bearings, shot peen the standard 3sgte rods and crank, do some head and manifold work, get new exhaust manifold made up, run a 3" dump no cat to 3" exhaust, run 264s with adjsutable crank pulleys, get new water pump, rebuild oil pump, install decent clutch and install new LW flywheel, balance up the whole lot, run a t06, run 800cc injectors, run an aftermarket ecu and you've got your power with driveability to go with it
Your goals aren't that great! No need for stroker, no need to have a hard car to drive around, no need to waste money just because it would be cool
while the engine is out, clean and detail everything as it comes off, brackets, pulleys etc. Clean up your engine bay with some simple green.
no need to send to the chromers, just a wire brush, then some sanding and buffing on a bench grinder with a polishing wheel on it will bring everything up spanky. Cover in a clear poly plastic coating and you're good to go
use some nice silicon hoses and/or braided hoses and colour coordinate and you're done. The braided hoses don't even have to be expensive ones, unless you are going to be running high high power!
Then you really deserve to be in your magazine with a clean car and engine bay, putting down power to the ground the intelligent way without overspending and blowing budgets
you have already said that you have XX dollars put into this project, so why buy something because its cheaper and convenient? Wouldn't you rather shop around and spend a tad more and get something that is better overall?
tbh, do a 20 thou overboard, run some new pistons, get new big bearings, shot peen the standard 3sgte rods and crank, do some head and manifold work, get new exhaust manifold made up, run a 3" dump no cat to 3" exhaust, run 264s with adjsutable crank pulleys, get new water pump, rebuild oil pump, install decent clutch and install new LW flywheel, balance up the whole lot, run a t06, run 800cc injectors, run an aftermarket ecu and you've got your power with driveability to go with it
Your goals aren't that great! No need for stroker, no need to have a hard car to drive around, no need to waste money just because it would be cool
while the engine is out, clean and detail everything as it comes off, brackets, pulleys etc. Clean up your engine bay with some simple green.
no need to send to the chromers, just a wire brush, then some sanding and buffing on a bench grinder with a polishing wheel on it will bring everything up spanky. Cover in a clear poly plastic coating and you're good to go
use some nice silicon hoses and/or braided hoses and colour coordinate and you're done. The braided hoses don't even have to be expensive ones, unless you are going to be running high high power!
Then you really deserve to be in your magazine with a clean car and engine bay, putting down power to the ground the intelligent way without overspending and blowing budgets
I hear the st205 (Gen3 3sgte) cams will fit our Gen2 motors. Does anyone have the degree and lift specs on those, and if they do fit?
If I remember correctly, the lift is nearly 9mm, nearing the 256-264 range.
Hopefully someone actually knows what they are talking about.
I am considering that as a much cheaper option, although I plan to be doing 400 at the wheel..so maybe it's not enough :shrug: .
Timmey
If I remember correctly, the lift is nearly 9mm, nearing the 256-264 range.
Hopefully someone actually knows what they are talking about.
I am considering that as a much cheaper option, although I plan to be doing 400 at the wheel..so maybe it's not enough :shrug: .
Timmey
compy591":1abwt4ve said:
I've seen 272 intake, 264 exhaust on many setups on MR2oc, and a few on here. It kind of confused me at first, but apparently works really well. You'd think you would want more exhaust to spool the turbo, but you need all that boost to come into the head right? I understand it kind of but can't explain. Maybe someone more awake can chime in.
Anyone know the measurements of the Gen 3 cams? Wouldn't they be close to 256 cams, but like 1/2 as expensive?
Timmey
I asked the Gen3 question in another thread, and it's no where near the 256-264s. But now I know.
Those staggered setups are pretty cool. How do those idle compared to just 264s? The dynos charts for them there do make them tempting as I am looking for quick spool.
Anyone tried 264/256 and what range would that be for mostly?
Cheers,
Timmey
Those staggered setups are pretty cool. How do those idle compared to just 264s? The dynos charts for them there do make them tempting as I am looking for quick spool.
Anyone tried 264/256 and what range would that be for mostly?
Cheers,
Timmey
ST185pinjo
New member
I thought of it like this. If you get a staggered setup for quicker spool.
Bigger intakecam to get as much filling of the cilinders as possible. Might go with 1 [mm] oversized valves on the intake.
Than you get the bang.
All the exhaust gas gets squeezed through the smaller exhaust cam and valves for the extra speed of the gas. The speeding gas hits the turbo exducer hard, and thus faster spool.
correct me if I'm wrong.