non intercooled spool
Jan 18, 2008, 12:50 PM
#32
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I hope that you guys call dsm t25 too small. What about my small t25, lol?
I can push mine well over 300 who mark, but I'm only shooting for 12 psi and hitting just below 300whp mark.
I can push mine well over 300 who mark, but I'm only shooting for 12 psi and hitting just below 300whp mark.
Jan 18, 2008, 01:03 PM
#34
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9.5 isnt that high for boost. My car was that stock and i only dropped it to 9.25 since i plan on running a turbo that doesnt boost till 4500rpms
Last edited by cincy; Jan 18, 2008 at 01:06 PM.
Jan 18, 2008, 01:09 PM
#35
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The engine is only as safe as the tune and accompanying parts working together as one. Has he said what pistons he has got? 10:1? 11:1? If 11:1, yes get the decompression gasket; but with 10:1, I think that'd be a perfect platform to work with as is. Plenty of Civics running 10:1 or higher on conservitive maps; it's just all in the tune!
Jan 18, 2008, 01:16 PM
#36
Yeah, thats not going to happen. Its hard to get to the 300whp mark with a gt28r, let alone on a t25 and 12psi. Not going to happen.
9.5 isnt that high for boost. My car was that stock and i only dropped it to 9.25 since i plan on running a turbo that doesnt boost till 4500rpms
9.5 isnt that high for boost. My car was that stock and i only dropped it to 9.25 since i plan on running a turbo that doesnt boost till 4500rpms
Jan 18, 2008, 01:17 PM
#37
The engine is only as safe as the tune and accompanying parts working together as one. Has he said what pistons he has got? 10:1? 11:1? If 11:1, yes get the decompression gasket; but with 10:1, I think that'd be a perfect platform to work with as is. Plenty of Civics running 10:1 or higher on conservitive maps; it's just all in the tune!
Jan 18, 2008, 01:20 PM
#38
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Nope. I will keep my 11.0:1 compression. Response and torque is great.
And I know that I won't hit 300whp at 12psi, it will be more like 280-290whp and alot more torque. My whp is not dropping and I rev to 6800rpm.
Do the math!!!
1) My NA high compression engine without ignition tuning had 127whp and 12X torque.
2) I turbocharged it with ebay gt28r (.60/.63) and got 206whp and 230 torque at 6.5psi. That's 79whp and over 100 torque gain. (same dyno - dyno dynamics)
3) Now I have slightly bigger turbo with bigger housing (.60/.80); better top-end.
Basically after I get my rods and some tunning, I should be just shy of 300 mark.
And I know that I won't hit 300whp at 12psi, it will be more like 280-290whp and alot more torque. My whp is not dropping and I rev to 6800rpm.
Do the math!!!
1) My NA high compression engine without ignition tuning had 127whp and 12X torque.
2) I turbocharged it with ebay gt28r (.60/.63) and got 206whp and 230 torque at 6.5psi. That's 79whp and over 100 torque gain. (same dyno - dyno dynamics)
3) Now I have slightly bigger turbo with bigger housing (.60/.80); better top-end.
Basically after I get my rods and some tunning, I should be just shy of 300 mark.
Jan 18, 2008, 01:24 PM
#40
What dyno is that on, a dynojet?
Going frm 206 whp to 300 whp is a big jump, that's basically another 100 whp gain and you won't get that by simply doubling the PSI (you lose efficiency as you go up).
I agree that 300 whp is a bit much, I'd be more concerned about the motor lasting considering it's not merely being strained by a ridiculously high compression, it's having air forced into it as well.
Going frm 206 whp to 300 whp is a big jump, that's basically another 100 whp gain and you won't get that by simply doubling the PSI (you lose efficiency as you go up).
I agree that 300 whp is a bit much, I'd be more concerned about the motor lasting considering it's not merely being strained by a ridiculously high compression, it's having air forced into it as well.
Jan 18, 2008, 01:30 PM
#43
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My had is from '98 mirage with 272 Crower cam, P&P, adjustable rocker arms, stiff valve springs. Basically I have all the support. I'm only missing rods.
Again, like I said it before. I won't hit 300whp, but close.
Again the dyno is Dyno Dynamics (No Limit Motorsports) <--- check them out on Youtube. Great tuners.
Again, like I said it before. I won't hit 300whp, but close.
Again the dyno is Dyno Dynamics (No Limit Motorsports) <--- check them out on Youtube. Great tuners.
