T3/T4 or T25?
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I want to be quick off the line, i only want around 300 to the wheels. And I was going for the Dezod kit, but some friends are telling me that the t3/t4 dont spool up till 4,000 RPM's. im j/w if thats true?
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Originally Posted by DUDEitsMATTx
I want to be quick off the line, i only want around 300 to the wheels. And I was going for the Dezod kit, but some friends are telling me that the t3/t4 dont spool up till 4,000 RPM's. im j/w if thats true?
There are only a couple of guys on here that get that kind of power off of the d17, but if thats a serious goal, you need to upgrade from the stock internals.
this should help -
http://www.7thgencivic.com/forums/sh...d.php?t=168101
Last edited by jdgoodwi; Apr 8, 2006 at 08:43 PM.
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Rep Power: 258 yah i know that, im gunna be building the motor. im j/w about the turbo. cuz my friend has a 97 civic SOHC and hes all stock with a t25 and he it sayin i wont beat him with a t3/t4. so idk
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Rep Power: 0 its just a matter of preference then... you can obviously get more out of the t3/t4, but the t25 spools faster as you know. with the t25 your somewhat limited as far as gradually improving your numbers as you do more work. And your friend is dead wrong btw.
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Rep Power: 258 yeah i mean when he was stock and i was stock i beat him, hes got a d15 i think or d16. but can u make the turbo spool faster with a good tune? or how do u make it spool? sry im trying to learn, thx alot..
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tuning effects everything.
for example.... If you pull 10 degrees of timing out at zero vaccum up to about 3 psi of boost, the turbo will spool insanely fast. But this can cause damage to your exhasut turbine since it is dumping much much hotter exhaust gasses into the turbo.
Theres a ton of things you can do. But ill guarantee that if you know how to drive your car, you will smash him if you have a T3/T4 and he has a T25.
for example.... If you pull 10 degrees of timing out at zero vaccum up to about 3 psi of boost, the turbo will spool insanely fast. But this can cause damage to your exhasut turbine since it is dumping much much hotter exhaust gasses into the turbo.
Theres a ton of things you can do. But ill guarantee that if you know how to drive your car, you will smash him if you have a T3/T4 and he has a T25.
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Originally Posted by turboengnr
tuning effects everything.
for example.... If you pull 10 degrees of timing out at zero vaccum up to about 3 psi of boost, the turbo will spool insanely fast. But this can cause damage to your exhasut turbine since it is dumping much much hotter exhaust gasses into the turbo.
Theres a ton of things you can do. But ill guarantee that if you know how to drive your car, you will smash him if you have a T3/T4 and he has a T25.
for example.... If you pull 10 degrees of timing out at zero vaccum up to about 3 psi of boost, the turbo will spool insanely fast. But this can cause damage to your exhasut turbine since it is dumping much much hotter exhaust gasses into the turbo.
Theres a ton of things you can do. But ill guarantee that if you know how to drive your car, you will smash him if you have a T3/T4 and he has a T25.
A decently tuned T3/T4 will destroy a T25 on the same boost levels and even a bit more boost on the T25.
No, it does not necessarily spool at 4K. All depends on the tune & exhaust A/R on it.
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Rep Power: 281 Small turbine as t25 cant move enough colder air on high rpms to create healthy top end gain as t3/t4.
But most certanly t25 will destroy t3/t4 in regular city driving (not racing).
Also smaller turbo creates impression for the driver, as "there is turbo on this car and I can actualy feel it and use it without revving engine to much".
Just to give you a clue:
d17 + t25 = feels like big v6 with pushrod engine (good low end power, so-so top end)
d17 + t3/t4 = feels like b18/k20 (slow off the srart, nice top end)
But most certanly t25 will destroy t3/t4 in regular city driving (not racing).
Also smaller turbo creates impression for the driver, as "there is turbo on this car and I can actualy feel it and use it without revving engine to much".
Just to give you a clue:
d17 + t25 = feels like big v6 with pushrod engine (good low end power, so-so top end)
d17 + t3/t4 = feels like b18/k20 (slow off the srart, nice top end)
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Originally Posted by 03-Acura-1.7-EL
Small turbine as t25 cant move enough colder air on high rpms to create healthy top end gain as t3/t4.
But most certanly t25 will destroy t3/t4 in regular city driving (not racing).
Also smaller turbo creates impression for the driver, as "there is turbo on this car and I can actualy feel it and use it without revving engine to much"
But most certanly t25 will destroy t3/t4 in regular city driving (not racing).
Also smaller turbo creates impression for the driver, as "there is turbo on this car and I can actualy feel it and use it without revving engine to much"
One more thing to consider. More frequent boost puts more wear and tear into the motor that is not designed to handle it.....Food for thought. So lagginess could be a good thing, but a tune could even solve that.
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Rep Power: 281 I know what you're saying.
The head snapping acceleration does feel great, I agree.
But you cant beat smoothness of a small turbo. You just dont get jumpy feeling, where car suddenly starts to accelerate with much more force.
Small turbo on the other hand, provides a surge that lasts a tad longer and therefore simulates agreater acceleration that actualy is.
The head snapping acceleration does feel great, I agree.
But you cant beat smoothness of a small turbo. You just dont get jumpy feeling, where car suddenly starts to accelerate with much more force.
Small turbo on the other hand, provides a surge that lasts a tad longer and therefore simulates agreater acceleration that actualy is.
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Rep Power: 258 what? with a t25 it stops before redline?
also now that i see all these people with K24a1's with 220whp with just
i,h,e its geting me thinking on getting a k24 then turboing it. that would
put down some good #'s woulden it with a t3/t4?
also now that i see all these people with K24a1's with 220whp with just
i,h,e its geting me thinking on getting a k24 then turboing it. that would
put down some good #'s woulden it with a t3/t4?
Last edited by DUDEitsMATTx; Apr 9, 2006 at 04:00 PM.
i look at it this way...if it doesn't spool til 4 k, and you normally drive around around @ 3k or so (civil driving habits), you're not in boost, but the potential is there if you're feelin' froggy....
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Rep Power: 262 If it were me i'd go with a bigger turbo....just for the simple fact i think it is sick to mash the gas, have a lil bit of turbo lag then be slingshot forward...i agree with Dezod...i would love to have the daily drivability of my d17 and gas mileage, and save the boost levels for higher up in the rev range
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Originally Posted by DUDEitsMATTx
yah def. cuz i mean if the T25 gets a t3/t4 off the line then t3/t4 is gunna fly past the t25 once it gets its boost up.
Not to mention, what RPMS are most of your racing occuring? 4K+ which is out of the T25's realm of power and where the T3/T4 shines.
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Originally Posted by dezod
Besides Civics don't race from a dig....
Not to mention, what RPMS are most of your racing occuring? 4K+ which is out of the T25's realm of power and where the T3/T4 shines.
Not to mention, what RPMS are most of your racing occuring? 4K+ which is out of the T25's realm of power and where the T3/T4 shines.
Last edited by DUDEitsMATTx; Apr 10, 2006 at 09:14 PM.
