57trim , is it that bad ?

[thilaksharma]

after reading the compressor maps and all the 57trim threads,
is the 57 thatttttttttttttttttttttttttttt bad ?

whts the spool up like on a 57trim for lets say 25psi

*sob*sob* i cant get 50trims over in malaysia

 

[turboglenn]

It's not too bad... it take a while to build the initial boost, but once i've hit 15psi or so it rockets right up to teh 20's easily and super fast. It's jsut slow to get started building pressure ratio.

In 1st it take s a while to spool because the tires start spinning and it loses load, in 2nd it's spooled by 42-4500 RPM but spinning the wheels there as well.. In 3rd i can have it spooled past 20PSI by 4k RPM ( and again it starts spinning tires in 3rd whohoo) and in 4th adn 5th it will fully spool up in the 3500 - 3800 rpm band, but that's going WOT at say 3k RPM and letting it build

I love my 57 for it's wide power ranges, i think the thing that would benefit itthe most is a smaller turbone section and wheel maybe a stage II in a .62ar housing would probably bring the spool from 4200 - 4500 down to the 3800 RPM range at the cost of some very top end HP. but i'd sacrifice it. EIther that or i'll get a 60trim with a BB center section and stage II turbine. I'm not after peak top end power though, i want a broad and high power band all RPM's from 3-35k to redline (7500 RPM ) for me.

 

[link16]

I have a different engine but I have a 57 trim ebay turbo and I get 30psi at 7k rpms. I get full boost of 15psi at ~4200.

We both have 2.0L engines; I would expect spool times to be very similar.

 

[JOEY A]

My buddy had one, didnt seem that bad compared to my friends 50trim

Almost around the same spool time...

 

[fwdeclipse]

I have a different engine but I have a 57 trim ebay turbo and I get 30psi at 7k rpms. I get full boost of 15psi at ~4200.

We both have 2.0L engines; I would expect spool times to be very similar.

30psi at 7k.WTF Is that in 1st gear?

 

[dsm-onster]

My buddy had one, didnt seem that bad compared to my friends 50trim

Almost around the same spool time...

Exactly! The 57 trim is similar in overall size and weight as the 50-trim. The turbine primarily determins spool, not the compressor (if the turbine wheel and compressor wheel are barely remotely matched).

thilaksharma, what turbine do you have (housing and wheel)?

 

[thilaksharma]

Exactly! The 57 trim is similar in overall size and weight as the 50-trim. The turbine primarily determins spool, not the compressor (if the turbine wheel and compressor wheel are barely remotely matched).

thilaksharma, what turbine do you have (housing and wheel)?

i am currently run a 46trim
but i am opting for the 57trim soon, very soon, like few hours from now

 

[dsm-onster]

i am currently run a 46trim
but i am opting for the 57trim soon, very soon, like few hours from now

Yea, but which turbine and turbine housing? The term 46-trim refers to the compressor diameters derivatively. Is it a t3 flanged turbine housing? Is it the BEP housing? Do you have a t3 stage3 turbine wheel? stage5? p-trim? Likely you have a t3 stage3. . . possibly stage 2. You should have no more than a stage 5.

If you purchase a 57-trim w/ the same turbine wheel and turbine housing as your current 46-trim, then spool should be close to the same. There will be more potential power up top.

We need to know the answers to these questions concerning your 57-trim you want to purchase.

 

[qwklil4]

I just got a 57 trim, with a O trim turbine in a .58 housing. I have an idea on what this setup will do...but I'd really appreciate anyones opinion on it. It's not installed yet.

 

[dsm-onster]

Do you mean .48? .58 is a t4 a/r number. Do you have a t4 flange or t3 flange? This should spool fairly quick in a .48 a/r t3 turbine housing. The o-trim has a larger inducer diameter than a t3 stage3. This yields more leverage (torque) onto the turboshaft. It also has a smaller exducer than a t3 stage5. This "bottlenecks" the gases a bit and forces the particles to exchange more energy (do work) earlier. This will increase spool. But the large diameter of the inducer will cancel some of this out.

So you're likely going to spool similarly to a t3 stage3 in a .63 housing which sees spoolup by 3800 rpms w/ a 50-trim compressor. This is ballpark benchracing. If you have an "idea", then you know as much as we all will until you try her out .

 

[DsmDave95]

^good information from this guy right here^

 

[thilaksharma]

Yea, but which turbine and turbine housing? The term 46-trim refers to the compressor diameters derivatively. Is it a t3 flanged turbine housing? Is it the BEP housing? Do you have a t3 stage3 turbine wheel? stage5? p-trim? Likely you have a t3 stage3. . . possibly stage 2. You should have no more than a stage 5.

If you purchase a 57-trim w/ the same turbine wheel and turbine housing as your current 46-trim, then spool should be close to the same. There will be more potential power up top.

We need to know the answers to these questions concerning your 57-trim you want to purchase.

sorry for not giving you the full details
i run a very strange setup

t04e 46trim compressor
0.60 t04e housing
td05 CHRA
7cm evo III td05 turbine housing
turbine fin is still the stock evo III

i blew my evo III compressor fin , so i opted to modify the turbo to fit the t04e housing and 46trim compressor wheel. I run a standalone, so it was stupid of me for running without a air filter , some crap ate the evo III compressor wheel


the turbo i am going to opt for is a
57trim t04e
0.50 a/r housing
76trim stage III wheel
0.63 t3 turbine housing
it is similar to the one sold in ebay , bt mine is genuine garrett

 

[pneumo]

I run a very strange setup

t04e 46trim compressor
0.60 t04e housing
td05 CHRA
7cm evo III td05 turbine housing
turbine fin is still the stock evo III

It's not that strange. It's a combination of parts that was popular many years ago. That turbo is identical to a Frank 1 except you have a newer evo3 turbine housing. It's similar in performance to a 20G.

 

[dsm-onster]

It's not that strange. It's a combination of parts that was popular many years ago. That turbo is identical to a Frank 1 except you have a newer evo3 turbine housing. It's similar in performance to a 20G.

Thann you both for some clarification!!! Your setup will be limited to your turbine (not that good).

But since it blew, you're future setup (57 trim full w/ full garrett internals) will spool decently by 3800 rpms. It will flow around 42.5 lbs/min. It will be limited by the compressor.

The 46-trim compressor comes no where near a 20g in performance! Its peak flow is similar to the 57-trim to which you are switching.

There is no .50 a/r turbine housing!

 

[thilaksharma]

Thann you both for some clarification!!! Your setup will be limited to your turbine (not that good).

But since it blew, you're future setup (57 trim full w/ full garrett internals) will spool decently by 3800 rpms. It will flow around 42.5 lbs/min. It will be limited by the compressor.

The 46-trim compressor comes no where near a 20g in performance! Its peak flow is similar to the 57-trim to which you are switching.

There is no .50 a/r turbine housing!

its a .50 compressor housing , 0.63 turbine housing

 

[silver bullit]

If you are worried about spooling, or lag get cams or run the turbo with a mild built 2.0-2.1-2.2-2.3-2.4 or get a higher compression piston for your motor, 8.5-9.0.

If you are not rebuilding motr then just get the cams and tune it.

 

[dsm-onster]

If you are worried about spooling, or lag get cams or run the turbo with a mild built 2.0-2.1-2.2-2.3-2.4 or get a higher compression piston for your motor, 8.5-9.0.

If you are not rebuilding motr then just get the cams and tune it.

Well, i saw more lag w/ a fp2xs than stock cams . That doesn't mean that there're not an excellent next step. Just that it makes the car a little less ballzy in town.