60 Trim owners??

[1994supertalon]

Those of you that run the 60 trim stage 3 63 a/r what kind of spool up are you getting? Is this turbo too big for a street car and is there any surge problems? I'm mainly interested in finding out what rpm full boost comes on.

 

[nowayout]

I have an S trim. For me too big for street use no. Others who would like full boost by 3K RPM, yes it too big for street use.
With my External wastegate I get no surge at all.
Depends on what gear but I get full boost by 4600 rpm.

 

[Mindslayer]

I get full boost at 3800-4000. (ex waste,2.5dp and test pipe 3in catback, ported 2g head, cams,8 cm tubrine housing)

 

[NosLaser]

Stick to a 60 trim in a TO4E compressor housing. IT's a great turbo for a street DSM; will make more power than a 60-1 on pump gas. With good tuning, you can see full boost by like 3500-3800 (similar to Mindslayer) and it will pull like a freight train to basically as high as you need to rev it. It's also a very efficient turbo (similar to a 50 trim, not quite as good, but similar) so again, you can make good power on pump gas. On race gas, you can crank the boost and run it out of it's efficiency range and make even more power. Good intercooler, good tuning. The 60 trim is pretty easily capable of over 500 wheel HP on race gas, and I wouldn't be surprised to see mid 400's on pump gas.

Regards,

 

[PSI2HI]

I've tested both the 60 trim and the 60-1 on my car. The 60-1 does spool a few hundred rpm's slower but it made considerably more power. On my car the 60 trim made 355.5 on 18 psi 92 oct pump and the 60-1 made 357 on 16 psi 92 oct pump. These 2 tests were not back to back they were a few months apart so conditions may vary slightly, but no other changes were made to the car other than the turbo and that the 60-1 was run on an open DP so maybe a few more hp factor'd in for that. Either way i was satisified w/ both the turbo's. Both i think would be plnety well suited for a street car.

Nick

 

[bigfoot]

I have neither turbo, however I did stay at a Holiday Inn last night. Here is Dre's 448 hp dyno run, on pump gas. He has a 8cm Green, and probably no life cause he tunes all the time. This shows what a 50 trim can do. I've heard of two other 50's making more power but they were on race gas. I'm looking at the .63, stage three, TO4E bolt ons. Just my .02.

http://www.dsmtalk.com/forums/showthread.php?s=&threadid=91657

 

[NosLaser]

...On my car the 60 trim made 355.5 on 18 psi 92 oct pump and the 60-1 made 357 on 16 psi 92 oct pump....

See, that's the problem. Of course the 60-1 will make more power at the same boost levels; it simply moves a lot of air. But the thing with the 60 trim is that you can run 25+ pounds of boost, and make well over 400 wheel HP on pump gas because it's an efficient turbo. Try running that boost on a 60-1 on pump gas... That is what I meant when I stated the 60 trim is a better pump gas turbo.

Regards,

 

[nowayout]

What nice about the 60-1 is you don't have to run a lot of boost to make the same power.

Granted you will lose a few 100 RPM of spool up time.
I a matter of choice and how much power do you want to make.

 

[NosLaser]

...What nice about the 60-1 is you don't have to run a lot of boost to make the same power....

That's the problem. You CANNOT make the same power on a 60-1 on pump gas as you can on a 60 trim. It is just not an efficient enough turbo. Yes, on race gas, you can crank the boost, and run the 60-1 well out of it's efficiency range, and make great power, but that's not what we are talking about. For a street car on pump gas, I would take the 60 trim all day long. Better area under the curve, better response, and it WILL make more horsepower on pump gas. The 60-1 moves more air granted, but it also heats the air up quite a bit more thus limiting the amount of boost read: power potential on pump gas.

Regards,

 

[rforres]

this will be somewhat of a newb turbo question.
im going to get 1 of the new pte turbos, the question is which one ? i would love to have power all the time on pump gas but at the same time if i know im going to the track i will use race gas as well as my zex wet kit w/a 75 jet. i spoke to mike licht at ramchargers about the pte turbo, he said the best street/track turbo (for me -n2o, gm maft) would be the 60 trim w/the gt 350 wheel, he stated its equivilant to the red turbo, my car will not be a daily driver, just my hobby. i have the gm maft and the n2o so mike said spool up will be ok on the 60 trim. but i am reading that most ppl like the 50 trim better on pump gas ? mods in profile are changing but basically i will be doing the dejone race fmic, delphi 680 injectors, stock engine w/cometic gasket and arp head studs (while i build my original 6 bolt), im looking for something good for the street from a 40 roll ( i love brake boost) to whatever around here on the street, and then go to the track and run some mid 7's (1/8 mile track) i have 0 tuning and my old set up should have been faster but i have since added the gm maft and a greedy egt and will dyno w/a welded v/c when i get it back together.
the turbos i am looking at are the scm 52

or the scm 50 from extreme turbo

what i dont want to do is regret not going bigger after i get my built motor done .

thx
ronnie


oh and why is the 56 trim bigger than the 60 trim, i need to go search ...

 

[bigfoot]

The 56 trim is a GT-40 wheel.

Here is which compressor wheels are 58mm 60 trims vs. 59mm 60-1's.

SCM44 (565-hp) 58mm 2.290" 2.950" 60 trim
SCM53 (610-hp) 58mm 2.290" 2.950" 60 trim

SCM60 (580-hp) 59mm 2.320" 3.000" 60 trim
SCM52 (600-hp) 59mm 2.320" 3.000" 60 trim
SCM54 (620-hp) 59mm 2.320" 3.000" 60 trim

 

[rforres]

from ramchargers.com there part #scm51

This turbo includes a high flow internal wastegate, a 58mm, 60 trim compressor and the T350 turbine wheel. It can support up to 585 HP



so this is a 60 trim turbo ?




from pte turbos , comes the scm 52, u are saying the scm 52 is a 60-1 trim, which will not be good for me , but pte doesnt list the scm 51 ???


im sold on the ramchargers scm 51 for now, but why doesnt pte list that part # ? somone with some patience educate on these to turbos.


thx,
ronnie

 

[peregrine]

Originally posted by bigfoot
The 56 trim is a GT-40 wheel.

that tells me nothing. does the 56 trim flow more than a 60 trim? as in lbs. per minute? i was interested in getting the pte SCM61 56 trim T350 TBD 69. can anyone tell me anything about this? i talked to mike huml a few days ago and he told me that he didnt think that the 56 trim was that much of a better wheel than the 50 trim but looking at other charts tells me different. am i way off base here?

 

[bigfoot]

that tells me nothing.

Evidently neither did your English teachers. :laugh: Seriously dude, the map is posted on PTE's site. Just go look at it.

 

[peregrine]

i DID look at it. to the layman that cant read compressor maps its not so elementary. break it down for me there sport does the 56 trim outflow a 60 trim? simple question.

 

[bigfoot]

It outflows both the 60 and the 60-1. It might be a good pump gas turbo but it's still unproven as far as I know.

 

[NosLaser]

I will say this. The 56 trim looks VERY promising. Efficiency looks great, and it will make huge power with the wick cranked. Of course this is judging by the map alone, and an example of an MR2 that layed down 630 wheel HP with it. I'd like to see this turbo on a DSM.

Regards,

 

[peregrine]

well, i just talked to (jim?) at pte and he told me that a 60 trim would most likely suit my goals better. now my question is, whats the deal with all the compressor surge horror stories ive been hearing about the 60 trim? i looked at the 50 trims and i just dont think that a 50 trim will get me where i want to be (450 to the wheels). someone PLEASE enlighten this poor uninformed soul

 

[bigfoot]

Originally posted by peregrine
well, i just talked to (jim?) at pte and he told me that a 60 trim would most likely suit my goals better. now my question is, whats the deal with all the compressor surge horror stories ive been hearing about the 60 trim? i looked at the 50 trims and i just dont think that a 50 trim will get me where i want to be (450 to the wheels). someone PLEASE enlighten this poor uninformed soul

PTE didnt think the big 56 trim would make 450 on pump?

 

[peregrine]

Originally posted by bigfoot


PTE didnt think the big 56 trim would make 450 on pump?

haha. that never came up. he seemed to think that the 56 was OVERKILL for what i want. big overkill.

 

[NosLaser]

Use a 60 trim in a TO4E compressor housing with an H3 (stage 3 for the import guys) turbine wheel in a .63 back housing and you ain't gonna get compressor surge. I love how the term 'compressor surge' gets thrown around and most people don't even know what it means.

Regards,

 

[peregrine]

look at this aslan and tell me what you think. http://precisionte.com/ SCM44 60 trim T31 TBD 76 im stupid with turbos. im thinking more and more of just picking up the 56 trim though. might as well just spend the money once on a turbo. i figure the 56 with 264/272 combo and a sheetmetal intake and 660's-720's should yield close to 475 at the wheels. what do you think? when the motor goes, i plan on putting a pretty built 2.3-2.4 in it so this turbo should be perfect for both applications right? or am i insane?