Looking to get more power from my Lovefab Turbo. Current turbo is a PT61 with a .58ar. Makes 557rwhp/480rwtq at 21psi. I am looking at the 2nd gen PT6266 CEA ball bearing turbo with .58ar to replace it with. My goals are 600-650rwhp at 18-20psi without loosing spool or creating excessive back pressure.I wouldn't mind making less in the torque department. Here is a dyno of my PT61 and how power starts to drop off over 6250rpm. What do you guys think.
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Looking for more power from my Lovefab Turbo
- Thread starter v8killer
- Start date
I think you're nuts.:wink:
I am on E55 now but that dyno is on E85. My turbo is not able to push enough air to make any more power. Check out how the power curve drops after 6250rpm.
Yes, it is a sickness lol. Here is my other go fast crack pipe that is causing the problem of making my NSX feel slow.[/ATTACH]
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Try the next size up exhaust housing.......you'll be smiling
Look at the design of the LoveFab air/water intercooler.
My engine builder saw (among other things) how Cody executed one on a LF600 build and said he left 3% efficiency (for free!) on the table just by building a poor design.
The laws of thermodynamics yield for nobody!
(NOT a bash post, just passing along some information that can yield gains with NO additional engine loads = pure thermal efficiency benefits ;-)
LoveFab = excellent fabrication.....but would have greatly benefitted from professional engineering scrutiny of the proposed products beforehand.
My engine builder saw (among other things) how Cody executed one on a LF600 build and said he left 3% efficiency (for free!) on the table just by building a poor design.
The laws of thermodynamics yield for nobody!
(NOT a bash post, just passing along some information that can yield gains with NO additional engine loads = pure thermal efficiency benefits ;-)
LoveFab = excellent fabrication.....but would have greatly benefitted from professional engineering scrutiny of the proposed products beforehand.
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NA1MT and sca037, what turbocharger are you guys running and how much boost pressure? What kind of engine build are you running (pistons,rods,sleeved block,etc.)? Thanks for the input fellas. Curious to know what clutch you are using too?
Garrett GT45R (yeah, it's no big- it's HUGE ;-) at 17psi.
Sleeved 3.0L block with a .20 overbore, 9.1 pistons, Oliver rods, 3.2 crank, 100% custom clutch utilizing twin (modified) 3.2 friction discs.
Sleeved 3.0L block with a .20 overbore, 9.1 pistons, Oliver rods, 3.2 crank, 100% custom clutch utilizing twin (modified) 3.2 friction discs.
Just got back on NSX prime and saw this posting. I am not surprised you are looking for more power......I am too.
I am at 630 to the wheels and I run only 14.7 psi. We did not bring the NSX this year so the file on it is with the car 2000 miles away. Anytime I need more power I go and talk to the guys at AGP turbo. They build them there and are very helpful(I run an AGP turbo but dont know the specs). PM me and I will give you the info to contact the owners. Tony at UMS is the one that put in contact with them....If they are good enough for Tony.....They are good enough for me. Good luck and I hope to get together this winter for some fun with the NSX guys.
Brian
I am at 630 to the wheels and I run only 14.7 psi. We did not bring the NSX this year so the file on it is with the car 2000 miles away. Anytime I need more power I go and talk to the guys at AGP turbo. They build them there and are very helpful(I run an AGP turbo but dont know the specs). PM me and I will give you the info to contact the owners. Tony at UMS is the one that put in contact with them....If they are good enough for Tony.....They are good enough for me. Good luck and I hope to get together this winter for some fun with the NSX guys.
Brian
This was Cody's former 'shop' car that dyno'ed at 920whp with this setup......turned down to 619whp.
We don't mind the massive lag, it just makes it more crazy fun to drive ;-P
v8killer, I an sell you my precision turbo that I was using prior to the Bullseye.
Which Precision turbo do you have? What kind of power did you make with it and at what boost pressure?
Full billet 67/66 @17psi it made 775hp
It has less than 100 miles on a complete refresh from Precision as well
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Is this a journal bearing or BB turbo? Is it a a Tangential T4 and what A/R? How much are you asking? Was that 775hp or 775rwhp?
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If that is indeed a Precision PT61 , it is rated at 680 hp. But keep in mind, there are still lots of variations on that turbo that can change that rating significantly.. E85 usually allows you to make the turbos rated power at the wheels. Very general statement... and your extreme peak instead of a gentle falloff curve (typical of a turbo running out of breathe) tells me it MAY be other things limiting your power and not your turbo. wastegate... wastegate placement. wastegate spring(s) Boost controller layout or solenoid. Etc. etc. etc. you might have already checked these, just throwing in my .02.
There is a decent chance between a larger exhaust housing, plus sticking to e85(instead of 55), you could hit your numbers.
That being said, turbo's just keep getting more efficient, don't overthink it. Your plan of the newest 62xx.. from PTE or an equivalent will also get you your numbers with the right wheels and housings.
Regarding sca037's huge turbo, I have a similar sized turbo(S480 BW) which was chosen for the same reasons his was originally chosen (for my old shop/shock factor.. pushing the limits etc). Since then I've moved on professionally so don't need/want the insano numbers(900whp+) anymore and have considered a smaller turbo.
I've now decided to leave it in place, as I think it's possibly a solution to killing transmissions on our NSX's. The torque doesn't hit as hard, and my theory is it's easier on the transmission. Time will tell, but it's taken low 500's(whp) for a while, and I plan to turn it up a couple hundred in the spring, we'll see if my theory holds up.
Built everything, and RPS twin carbon clutch.
It is a BB Turbo......I can find out the other info for you. The 775 was rwhp. You can have it for $1300
Hey NA1MT Which clutch are you running ?
Hey NA1MT Which clutch are you running ?
RPS Twin Carbon
There's currently a slightly used latest-gen SOS/RPS carbon clutch for sale in the classifieds if anyone's interested :wink:
Lowest price ever advertised on Prime!
Lowest price ever advertised on Prime!
I already have one. I’m going to something else
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