The Devils Own Chariot
Active member
Anyone know where I can find the specs in pounds per minute on the PTE51 and PTE52 turbos?
PTE turbo lbs per minute
- Thread starter The Devils Own Chariot
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Tooky
Serious about performance
Re: PTE turbo lbs per minute
PTE refuses to release the compressor maps for these turbos. Actually they claim that Garrett says it's proprietary info and won't allow them to release it. Strange that they wouldn't let them release this old information when Garrett publishes full details of their state-of-the-art GT turbo designs on www.turbobygarrett.com..
But, you can "estimate" the pounds per minute by dividing the HP rating by 10. In other words something rated to 600 HP "probably" flows around 60#/min max.
PTE refuses to release the compressor maps for these turbos. Actually they claim that Garrett says it's proprietary info and won't allow them to release it. Strange that they wouldn't let them release this old information when Garrett publishes full details of their state-of-the-art GT turbo designs on www.turbobygarrett.com..
But, you can "estimate" the pounds per minute by dividing the HP rating by 10. In other words something rated to 600 HP "probably" flows around 60#/min max.
The Devils Own Chariot
Active member
Re: PTE turbo lbs per minute
That’s strange. You would think that would help sales if they posted lbs per minute. So the GT35R is rated for 600hp also so that means they flow the same then. Im not sure if I believe that. The GT35R is a bad azz
That’s strange. You would think that would help sales if they posted lbs per minute. So the GT35R is rated for 600hp also so that means they flow the same then. Im not sure if I believe that. The GT35R is a bad azz
Tooky
Serious about performance
Re: PTE turbo lbs per minute
The GT35R has a "bad ass" reputation but that doesn't necessarily mean anything besides "follow the leader" group mentality. I mean it's not as if the average guy (or anyone at all) tests several similar but different model turbos and logs/analyzes the results to compare them all and truly tell the differences in performance.
Here's the data direct from the manufacturer:
http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT35/GT3582R_714568_3.htm
Notice the map ends on the right edge right near 60#/min?
I have seen the GT35R advertised elsewhere for 640HP, not sure why the discrepency..
The GT35R has a "bad ass" reputation but that doesn't necessarily mean anything besides "follow the leader" group mentality. I mean it's not as if the average guy (or anyone at all) tests several similar but different model turbos and logs/analyzes the results to compare them all and truly tell the differences in performance.
Here's the data direct from the manufacturer:
http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT35/GT3582R_714568_3.htm
Notice the map ends on the right edge right near 60#/min?
I have seen the GT35R advertised elsewhere for 640HP, not sure why the discrepency..
vortecfiero
New member
Re: PTE turbo lbs per minute
I understand how to plot an engine on a compressor map but have no idea
how to do the same on the turbine map.... any help would be greatly appreciated
I understand how to plot an engine on a compressor map but have no idea
how to do the same on the turbine map.... any help would be greatly appreciated
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It's just a six
Super Member
Re: PTE turbo lbs per minute
From what info I have gathered.
Most companies that sells turbo & parts copy Garretts design.
So if you look @ the inducer & exducer size for the PTE turbo & compare it to Garretts you will be pretty close to the LBS per minute.:2cents:
From what info I have gathered.
Most companies that sells turbo & parts copy Garretts design.
So if you look @ the inducer & exducer size for the PTE turbo & compare it to Garretts you will be pretty close to the LBS per minute.:2cents:
The Devils Own Chariot
Active member
Re: PTE turbo lbs per minute
So in other words PTE is the way to go.
So in other words PTE is the way to go.
It's just a six
Super Member
Re: PTE turbo lbs per minute
Garrett doe s a lot of R&D just to get there compressors to out flow the competition.
They have money to burn just to get a bit more CFM they will tweak here tweak there on there compressor wheels, blow em up & start all over.
Garret is not just one company,they got bank & backers.:2cents:
Garrett doe s a lot of R&D just to get there compressors to out flow the competition.
They have money to burn just to get a bit more CFM they will tweak here tweak there on there compressor wheels, blow em up & start all over.
Garret is not just one company,they got bank & backers.:2cents:
The Devils Own Chariot
Active member
Re: PTE turbo lbs per minute
This map tells me that the turbo is around 73% efficient at 25psi at 104k rpms. Flows 60 pounds per minute inch. Looks like you make the most efficient power at 20 psi with PTE67.
Can someone post the map for the stock turbo.
How do I know if the PTE67 turbo is to big for my setup?
I was looking more at the lines of a PTE51 or PTE52 and trying to run a stock stall for a bit.
This map tells me that the turbo is around 73% efficient at 25psi at 104k rpms. Flows 60 pounds per minute inch. Looks like you make the most efficient power at 20 psi with PTE67.
Can someone post the map for the stock turbo.
How do I know if the PTE67 turbo is to big for my setup?
I was looking more at the lines of a PTE51 or PTE52 and trying to run a stock stall for a bit.
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turbodig
Active member
Re: PTE turbo lbs per minute
This may be helpful...
http://www.gnttype.org/techarea/turbo/turbowheels.html
You can google any of those wheels in that chart.
The mix gets murkier now, as PTE has GT-style wheels in the mix.
This may be helpful...
http://www.gnttype.org/techarea/turbo/turbowheels.html
You can google any of those wheels in that chart.
The mix gets murkier now, as PTE has GT-style wheels in the mix.
The Devils Own Chariot
Active member
Re: PTE turbo lbs per minute
Didnt find anything on 17C.
Didnt find anything on 17C.
91blazins10
Active member
Re: PTE turbo lbs per minute
Heres a link to the stock turbo and a few othershttp://www.stealth316.com/2-3s-compflowmaps.htm#fm
Heres a link to the stock turbo and a few othershttp://www.stealth316.com/2-3s-compflowmaps.htm#fm
The Devils Own Chariot
Active member
Re: PTE turbo lbs per minute
Wow! The stock turbo is not that bad. It just does not flow crap. In the high 60% area efficient at 20 psi. I guess thats not real good considering the PTE67 is around 76% efficient at 20 psi and flows a ton more. Still the stock 17C is better than I thought. I might just stick with this turbo for a bit. Have to remember this rating is not with the cooling effects of alkycontrol :boink:
Wow! The stock turbo is not that bad. It just does not flow crap. In the high 60% area efficient at 20 psi. I guess thats not real good considering the PTE67 is around 76% efficient at 20 psi and flows a ton more. Still the stock 17C is better than I thought. I might just stick with this turbo for a bit. Have to remember this rating is not with the cooling effects of alkycontrol :boink:
Tooky
Serious about performance
Re: PTE turbo lbs per minute
The PTE67 is way too big for your setup, it's like a low 10 second turbo. (Denny Raab "sycho" actually ran 10.2 @ 131 with a PT63.) I ran a PT51 with the stock converter and it had pretty dreadful spoolup. With some impractical tuning I was able to get it to spool but I think that's an exception rather than the rule. I was totally disappointed to find out that big turbos DON'T result in more power at the same boost level (generally speaking) and they DON'T give you "awesome top end". The primary benefit of a bigger turbo is the ability to run higher boost pressures with high octane, than what you could before.
I have heard of some guys running ridiculous, outrageously big turbos for their combos and they reported that it actually "falls out of boost" (fails to maintain a constant boost level) in 4th gear or during 3rd gear TCC lockup. The turbo is so mismatched that the engine can barely even spool it at WOT.
The PTE67 is way too big for your setup, it's like a low 10 second turbo. (Denny Raab "sycho" actually ran 10.2 @ 131 with a PT63.) I ran a PT51 with the stock converter and it had pretty dreadful spoolup. With some impractical tuning I was able to get it to spool but I think that's an exception rather than the rule. I was totally disappointed to find out that big turbos DON'T result in more power at the same boost level (generally speaking) and they DON'T give you "awesome top end". The primary benefit of a bigger turbo is the ability to run higher boost pressures with high octane, than what you could before.
I have heard of some guys running ridiculous, outrageously big turbos for their combos and they reported that it actually "falls out of boost" (fails to maintain a constant boost level) in 4th gear or during 3rd gear TCC lockup. The turbo is so mismatched that the engine can barely even spool it at WOT.
The Devils Own Chariot
Active member
Re: PTE turbo lbs per minute
LOL thats funny. Yeah I think a PTE51 is what im looking for. I like the price also. Do you think a 2800 stall is good enough or just go with a 3000?
What do you guys thinks about ebay TC?
LOL thats funny. Yeah I think a PTE51 is what im looking for. I like the price also. Do you think a 2800 stall is good enough or just go with a 3000?
What do you guys thinks about ebay TC?