My ETS 57-Trim Evolution 8
Sep 7, 2007, 03:11 PM
#32
Anyone know how this turbo compares to the 20g-lt or the fp3065?
i was leaning toward the 20g because im looking for a daily driver with just 93 octane at 23 psi and i didnt think i would get the benifits of the 3065 with that.
You said the car spools at 3800...im guessing thats not full boost....when full boost hit??
i was leaning toward the 20g because im looking for a daily driver with just 93 octane at 23 psi and i didnt think i would get the benifits of the 3065 with that.
You said the car spools at 3800...im guessing thats not full boost....when full boost hit??
The 20G-lt is a fair bit smaller than the 57 trim which is smaller than the 3065. I'm not sure of the compressor wheel size on the 20G-lt but at the advertised 49lb/min flow rating in theory it would flow about 11% less than a 57 trim. The 57 trim is a 56mm compressor wheel and the 3065 is a 61mm wheel, both with similarly sized exhaust wheels.
If your plans never include more than 25-26 psi then you'll have the best powerband with the 54mm 50 trim. If you think you'll ever be headed into the 26-30psi range with methanol injection then the 57 or 58 (58mm compressor wheel) would be good choices for a mostly street application. Unless you plan for the car to see regular track use and 30+psi I wouldn't recommend any 61mm turbocharger.
While Monty is a great guy, he's a bit off on his tech info at times
Expect full boost in the lower 4000 RPM range on a 57 or 58. His dyno graph shows full boost at or around 4800RPM because the pull started at 4500RPM or some damn thing 
I just switched from our 35R (61mm) kit to our 58 kit for my mostly street driven EVO on methanol. While the 61mm offers killer top end, it sacrifices a bit of street driveability and that wasn't something I was willing to do with a street car that has an amazing AWD system.
Tom
Sep 7, 2007, 09:03 PM
#37
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The 20G-lt is a fair bit smaller than the 57 trim which is smaller than the 3065. I'm not sure of the compressor wheel size on the 20G-lt but at the advertised 49lb/min flow rating in theory it would flow about 11% less than a 57 trim. The 57 trim is a 56mm compressor wheel and the 3065 is a 61mm wheel, both with similarly sized exhaust wheels.
If your plans never include more than 25-26 psi then you'll have the best powerband with the 54mm 50 trim. If you think you'll ever be headed into the 26-30psi range with methanol injection then the 57 or 58 (58mm compressor wheel) would be good choices for a mostly street application. Unless you plan for the car to see regular track use and 30+psi I wouldn't recommend any 61mm turbocharger.
While Monty is a great guy, he's a bit off on his tech info at times Expect full boost in the lower 4000 RPM range on a 57 or 58. His dyno graph shows full boost at or around 4800RPM because the pull started at 4500RPM or some damn thing
I just switched from our 35R (61mm) kit to our 58 kit for my mostly street driven EVO on methanol. While the 61mm offers killer top end, it sacrifices a bit of street driveability and that wasn't something I was willing to do with a street car that has an amazing AWD system.
Tom
If your plans never include more than 25-26 psi then you'll have the best powerband with the 54mm 50 trim. If you think you'll ever be headed into the 26-30psi range with methanol injection then the 57 or 58 (58mm compressor wheel) would be good choices for a mostly street application. Unless you plan for the car to see regular track use and 30+psi I wouldn't recommend any 61mm turbocharger.
While Monty is a great guy, he's a bit off on his tech info at times
Expect full boost in the lower 4000 RPM range on a 57 or 58. His dyno graph shows full boost at or around 4800RPM because the pull started at 4500RPM or some damn thing I just switched from our 35R (61mm) kit to our 58 kit for my mostly street driven EVO on methanol. While the 61mm offers killer top end, it sacrifices a bit of street driveability and that wasn't something I was willing to do with a street car that has an amazing AWD system.
Tom
Thanks for the info
Yea thats why i didnt want to go too big because i knew i wouldnt be getting the full benifit of the turbo with just 93 octane at 23 psi...i want something thats nice for a daily driver and doesn't take forever to start spoolin...thats why i was thinking the 20g. I dont plan on running meth or anything....with 93 octane would 23 psi be the highest i can go to keep as a safe daily driver???
Another reason why i was gonna get the 20g is because i heard it flows about same as the 50 trim and a whole lot cheaper.
Whats your take on the 20g vs. 50 trim??
I have new wheels that i got to put on but i need to get an alignment before i put them on.
Sep 10, 2007, 11:01 AM
#42
Thanks for the info
Yea thats why i didnt want to go too big because i knew i wouldnt be getting the full benifit of the turbo with just 93 octane at 23 psi...i want something thats nice for a daily driver and doesn't take forever to start spoolin...thats why i was thinking the 20g. I dont plan on running meth or anything....with 93 octane would 23 psi be the highest i can go to keep as a safe daily driver???
Another reason why i was gonna get the 20g is because i heard it flows about same as the 50 trim and a whole lot cheaper.
Whats your take on the 20g vs. 50 trim??
Yea thats why i didnt want to go too big because i knew i wouldnt be getting the full benifit of the turbo with just 93 octane at 23 psi...i want something thats nice for a daily driver and doesn't take forever to start spoolin...thats why i was thinking the 20g. I dont plan on running meth or anything....with 93 octane would 23 psi be the highest i can go to keep as a safe daily driver???
Another reason why i was gonna get the 20g is because i heard it flows about same as the 50 trim and a whole lot cheaper.
Whats your take on the 20g vs. 50 trim??
Tom
Sep 10, 2007, 11:23 AM
#44
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If your plans don't ever include more than 23psi then a 50 trim will be right in its peak efficiency. At that boost level a 50 trim will offer a powerband fatter than anything else, and area under the curve is what makes for a great driving experience. A 20G will make peak torque a hair sooner but will also taper more quickly, likening its driving experience more toward a stock sized turbocharger. My opinion would be to put your money into other supporting mods, or something else entirely, before purchasing a Green. I just don't see it being enough of an improvement over the stock turbocharger to warrant its cost.
Tom
Tom
So next would prob be a turbo but i want to keep it a daily driver so i want something that dones't take forever to spool... when does the 50 trim start to spool...and when does it hit full boost?
I heard the 20g flows almost as much as the 50 and that i should just get the 20g.
