Which Turbo to use?
04-29-2003, 05:19 PM
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Which Turbo to use?
Currently, I have the COMPTECH S/C. I'm very much considering switching to a turbo.
My motor is being rebuilt with oversized sleeves and pistons with a compression
ratio of 10:1.
How much boost could this configuration handle? 10:1 with tuning the timing.
And, which type of turbo would spool the fastest to that boost?
Does anyone have any ideas?
My motor is being rebuilt with oversized sleeves and pistons with a compression
ratio of 10:1.
How much boost could this configuration handle? 10:1 with tuning the timing.
And, which type of turbo would spool the fastest to that boost?
Does anyone have any ideas?
04-29-2003, 06:34 PM
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I would talk to CJB...he's got a good setup in development. Should be interesting.
Are you looking for quick spool or high output? What kind of power do you want to put out?
I honestly would love to see someone put a GT35/40 on. They're huge, but they spool FAST.
Blake
Are you looking for quick spool or high output? What kind of power do you want to put out?
I honestly would love to see someone put a GT35/40 on. They're huge, but they spool FAST.
Blake
04-29-2003, 07:38 PM
#4
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GT 30/35, haha, I wonder if we'll be seeing someone use one of those soon....hmmm, i cant think of anyone off my head, 
. I'll be using a GT30 (as soon as I can afford the rest of the kit, arrg 
) which I hear spools up very fast. oh and yes, PM cjb80, his kit is pretty amazing looking, hell, I'm in the process (albeit slow) of buying and piecing it together.
. I'll be using a GT30 (as soon as I can afford the rest of the kit, arrg ) which I hear spools up very fast. oh and yes, PM cjb80, his kit is pretty amazing looking, hell, I'm in the process (albeit slow) of buying and piecing it together.
04-30-2003, 04:01 AM
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I just tuned a Supercharged S2000 vs a Turbo T3/T4 S2000 with a built motor, and there is a 100 hp difference at 4000 rpm!!! (favoring the turbo 
) The turbo made 24x ft lbs of torque and the supercharger made 170 ft lbs....
Chris
) The turbo made 24x ft lbs of torque and the supercharger made 170 ft lbs....Chris
04-30-2003, 08:27 AM
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[QUOTE]Originally posted by cjb80
[B]I just tuned a Supercharged S2000 vs a Turbo T3/T4 S2000 with a built motor, and there is a 100 hp difference at 4000 rpm!!! (favoring the turbo )
[B]I just tuned a Supercharged S2000 vs a Turbo T3/T4 S2000 with a built motor, and there is a 100 hp difference at 4000 rpm!!! (favoring the turbo
)
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05-01-2003, 08:37 PM
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I say if you have teh money, go with a HKS 3037S. You have to remmeber to tell yourself, that while boost pressure plays a signifcant role in picking a turbo, your main concern should be with the volumetric effeicency of a turbo. two turbos will flow completly different volumes of air at the same pessure. a turbo like a HKS 3037S will outflow most other turbos in the 9-16 psi range. ( while the hks will not flow as well as some turbos at other pressure ranges) picking a compression ratio for your engine should be matched to the effiecency of your turbo. you can make more power at lower psi with a turbo that's more efficent, then with a turbo that's pumping out more psi and less effiecnet at that psi. so it's good to know what type of turbo your going to be using before picking a compression ratio. and anyone who tells you that 8:1 or 8.5:1 is ideal for a turbo motor, is living in the 80's.
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