Im looking at buying a t3/t04s. and its a 60-1 trim compressor wheel. it has a .48ar exhaust and .70ar compressor. how much lag dou think i would experience with this turbo on a 2200 with 9-1 compression and port and polish
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I am not a turbo expert but that sounds just a little large to me. Might be very nice at high rpm's but I dont know if the 2200 can spool that soon enough to be effective. But why dont I sit back and see what the real turbo guys say.
i got the t3/t4, the spool time is not that bad from dead stand still. higher RPMs it takes a couple of seconds though. But im running the 2.4 im not sure how it would work out for you
even with the exhaust housing being only .48ar
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and there also .20 over pistons. so it would actually be a 2.3l
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CAVI.DEMON wrote:and there also .20 over pistons. so it would actually be a 2.3l
acutally its still a 2.2 from my understanding . 040 over bore on a 2.4 makes it a true 2.4
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boost will be soon for me....
um ok but u couldnt help me with my main question? thats the problem about the org is someone allways wants to jump in a forum and just try to make someone wrong about something.
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Well, I don't know how much space is available in front of the engine of a 2.2OHC (depends on the manifold), but I do think that a .70 ar compressor would be hard to fit between the engine and firewall of an ecotec or 2.4 TC. Also I think it would be a bit big for the 2.2OHC, your probably gonna see a lot of lag. I just don't see your engine pushing the .48 turbine wheel fast enough to make what the .70 ar compressor wheel can dish out in your RPM range= your not gonna see what the turbo is truely capable of. Plus it's probably gonna be hard to tune. Please correct me if I am way off.
Travis
Y do u think i cant push a .48ar when a small t3 has the same ar
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ok, so do it. you asked us a question we gave you an answer...and then let us know if you can spool it up. i would do something different if i were you.
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2007 Cobalt SS
2001 Sunfire (retired)
if you are getting a t3/to4, you don't need a 0.70 a/r compressor, 0.50 will be fine, the question is do you want a B (50 trim) or E (57trim) that is my question on a different thread. looks like on 2.2-2.4 engines that B would be better if you plan on running below 15 psi, and E better on 15+ psi applications. thats kinda what I found.
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You can spool a .48 exhaust with a 2.2 OHV no problem. Even with a .70 compressor. It may be on the big side if you want to run low boost but it's better to be a big bigger than too small. At least you can go with more boost without changing the turbo. Most people here are so stupid when it comes to turbo that they just jump in the bandwagon and say the same thing as everybody else without knowing.
Nobody answer his main question other than Ge-force. So Pjk, you can take your useless comment and put it where I think.
Gilles
2.3 Ho
hey thanks alot mfk I was looking for an answer to this ? as well
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My engine will be built and im planning on breaking it in with a standard t3 then get a big turbo and push 15-20. with the right add ons of course.
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I would like some advice from some of u turbo guys. im looking to be pushing my motor. i want to break 300whp. i kno it will take some work and im in the process of doing just that
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CAVI.DEMON wrote:Im looking at buying a t3/t04s. and its a 60-1 trim compressor wheel. it has a .48ar exhaust and .70ar compressor. how much lag dou think i would experience with this turbo on a 2200 with 9-1 compression and port and polish
Turbo lag has more to do with the turbine size (hot side) than the compressor size (cold side). Using a small turbine with a huge compressor will still probably spool faster than a bigger turbine and a smaller compressor.
A TO4S 60-1 is a pretty big compressor and a .48 a/r T3 turbine is pretty small. It shouldn't be a crazy amount of lag.
CAVI.DEMON wrote: I would like some advice from some of u turbo guys. im looking to be pushing my motor. i want to break 300whp. i kno it will take some work and im in the process of doing just that
You'd probably be better suited with a T3/TO4E 50 trim with a .63.a/r turbine. Why use a 600hp turbo (60-1) when you're only aiming for 300hp? A 50 trim TO4E is still plenty big enough to meet your needs and exceed them if you wish to later. It will also be much more efficent at lower boost pressures that the 60-1 will be.
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well im not aiming for 300 i just want to break it. and push more. i just though i would get more power per pound of boost with a big compressor housing and get it with a small exhaust housing so i could spool it. and i thought the hot side was what determined the lag, just wasnt completely sure.
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Using too big of a compressor does not give you "more power per pound of boost", it just doesn't work that way. Some big compressors will actually flow less cfm than a smaller compressor can at a specific boost pressure due to being out of their effeciency range. It may sound strange but a compressor can be more efficent at 30 psi than it can be at 15 psi. This is why it is important to map a compressor to see if if meets you needs.
I still suggest the T3/TO4E 50 trim with a .63 a/r turbine, it can support up to 450whp.
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yea im straying to that turbo but wouldnt a 48ar exhaust be better with less lag. what would the differences in lag between the 63ar and the 48ar be. i kno the 48 ar is better for lower end and the 63 is better for the higher end but i want something that is going to spool fast and still be able to push around 400whp. what do u think?
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I am really not sure the exact difference in lag between the .48 and .63 turbine, if i had to guess i'd say 500rpm later spool. One thing you need to remember is that a smaller a/r turbine will spool faster but it will also limit your top end power and give you higher EGT's. Some motors can see as much as a 50whp difference when switching from a .48 turbine up to a .63 .
Just some stuff to think about, do more research and make your own choice.
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Member of J-Body Of Michigan.
yea i forgot about the higher egts. i think im goin to go with the 63. thanx man
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Just get a 60/63 off an svo or tbird. You can get them for cheap and never look back. It's just a 48/60 with a bigger .63 turbike so it's a bit bigger. 90% of the "super 60s" people have on this site are just 48/60's without a true super 60 wheel.
Blew it up, build numbers coming soon
98redcav and skilz, i plan on running a gt28rs with a .82 a/r what would you say bout that being sized properly, atp turbo said it would work awesome for the 2.4 just bolted on and would allow significant power gains later on as it is good for 350whp for flowing capabilities
