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Forced Induction Turbo, Supercharger, Methanol, Nitrous


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Old 01-28-2014, 02:25 PM   #15
Sportsguy83
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Originally Posted by jamesm View Post
what size turbo is that? impressive numbers, but peak torque at 6500+rpm? damn...

great work as always.
FP used should put your mind at ease a bit...
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Old 01-28-2014, 02:34 PM   #16
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Those are standard on the series 10
I suddenly want the series 10 FRS now...
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Old 01-28-2014, 03:04 PM   #17
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Id pay them to remove them lol. Looks cheesy to me. To each his own I guess.
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Old 01-28-2014, 04:00 PM   #18
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Originally Posted by PrimeMotoring View Post
We just finished up another P&L Motorsports Stage 1 Turbo Kit and our very own Flex Fuel kit on this Series 10 FRS. Jr was able to extract 467whp and 357wtq on E85 on only 18psi.

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P&L Motorsports Stage 1 Turbo
PERRIN Performance 3" Non Res Cat-Back
Injector Dynamics ID1000cc Fuel Injectors
DW65c Fuel Pump
Prime Motoring Flex Fuel
4 Bar Map Sensor
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@JuniorAWD

No fuel starvation issues whatsoever with the DW65 at those power levels at all?

No concern on running it past half a tank? Target AFR holds all the way to redline?
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Old 01-28-2014, 04:08 PM   #19
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@JuniorAWD

No fuel starvation issues whatsoever with the DW65 at those power levels at all?

No concern on running it past half a tank? Target AFR holds all the way to redline?
Im sure Jr will chime in but we have installed the DW65c on 4 P&L cars running those power levels and about 15-20 lesser powerful kits and never had an issue.
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Old 01-28-2014, 04:55 PM   #20
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You are getting caught up with whats the "norm" for most dyno plots you see on other cars. Peak torque has more to do with characteristics of the engine and also gearing rather than when a turbo comes into full boost. This could also be Jr limited the way boost comes in to preserve the stock motor at these power levels. Im sure he will chime in here with an explanation and boost plot.

Look at the plots below, I searched others and could not find anything that suggests otherwise on these cars. Your car was turbo, by any chance do you have a dyno sheet that shows us what you are talking about exactly?
I do. This is my car with a GT2871R and note the flat torque band that corresponds with when max boost is reached:

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Old 01-28-2014, 05:26 PM   #21
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Another interesting dyno sheet. I am not understanding why you aren't getting peak torque as soon as the turbo hits max boost which should be in the 4000 to 4500 RPM range. Also it looks like the power was still increasing so why not rev it out to 7400 to 8000 RPM? Can we get a boost plot?

Whats interesting about it?

Where does it say that because a turbo hit max boost it needs to make max TQ at that same rpm? Where did it say that max boost was where you ASSUME it is?

Tuning strategy will play a huge roll in how the power is delivered.. That will also play a roll in longevity of the motor. I dont like windows in the block

RPM is off on the graph it seems, as the rev limiter is set to 7800 on this car and all P&L turbo kit cars I tune.
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Old 01-28-2014, 05:39 PM   #22
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Whats interesting about it?

Where does it say that because a turbo hit max boost it needs to make max TQ at that same rpm? Where did it say that max boost was where you ASSUME it is?

Tuning strategy will play a huge roll in how the power is delivered.. That will also play a roll in longevity of the motor. I dont like windows in the block

RPM is off on the graph it seems, as the rev limiter is set to 7800 on this car and all P&L turbo kit cars I tune.
care to answer the question about the fueling ? There is a shop that claims that the DW65 maxes out at 420whp
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Old 01-28-2014, 06:29 PM   #23
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care to answer the question about the fueling ? There is a shop that claims that the DW65 maxes out at 420whp

Hmmm.. I would say that is inaccurate based on my data. I would agree that on e85 its not good for much over 480-500whp though.
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Old 01-28-2014, 06:33 PM   #24
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Originally Posted by King Tut View Post
I do. This is my car with a GT2871R and note the flat torque band that corresponds with when max boost is reached:

That is a small turbo making about 100ftlbs less then the posted car. You can manipulate TQ curves with boost delivery and timing. If the posted car was only making 250ftlbs I would have easily let it make TQ lower. For the safety of the rods on a car running 18psi I dont just let it hit hard down low... also for traction you dont want a huge hit of tq/power all down low.
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Old 01-28-2014, 06:34 PM   #25
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Hmmm.. I would say that is inaccurate based on my data. I would agree that on e85 its not good for much over 480-500whp though.

Thanks, good info
Care to answer @sportguys83 questions about fuel delivery bellow half tank as thats another concern


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Old 01-28-2014, 06:59 PM   #26
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Where does it say that because a turbo hit max boost it needs to make max TQ at that same rpm? Where did it say that max boost was where you ASSUME it is?

Tuning strategy will play a huge roll in how the power is delivered.. That will also play a roll in longevity of the motor. I dont like windows in the block

RPM is off on the graph it seems, as the rev limiter is set to 7800 on this car and all P&L turbo kit cars I tune.
So then it must be still making power in that added band, the only thing I would attribute this to is limiting the boost down low so the tq and boost build by the end of the graph making it a much more user friendly and meaty powerband? Idk shot in the dark I guess. Either way, this is a proper turbo kit, good job!
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Old 01-28-2014, 07:01 PM   #27
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I think the way trq kicks in the end is by the use of the ebcs








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Old 01-28-2014, 08:14 PM   #28
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I think the way trq kicks in the end is by the use of the ebcs
Sent from my IBrick


Yep, i don't hit the motor with 18psi as soon as I can. It is slowly introduced to lesson wheel spin, or at least create spin with acceleration and not just utter tire destruction lol



As for the RPM, its off about 300-400rpm it would seem.


One other thing I want everyone to understand is that the shop is NEW to the dyno, and little things like rpm scale, smoothing etc is still being figured out.
With that said we have a few guys that will hit the track though, and it will verify the numbers for us. Im a big believer in actual performance not dyno numbers.

Jr
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