NPP dyno question??

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Apr 29, 2008 | 10:17 PM

JP84

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From: Northern New Jersey

NPP dyno question??

I run with the fused pulled I like the loud sound all round. My question is has anyoned dynoed a car with the NPP working like its supposed to vs keeping the flaps open all the time? If so whats the results??

Thanks

Apr 30, 2008 | 12:01 AM

JP84

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From: Northern New Jersey

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Apr 30, 2008 | 12:02 AM

danl72

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From: Chatsworth California

That is a good question.

Apr 30, 2008 | 10:42 AM

SpeedFreak81

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From: Sterling VA

You probably won't see any sort of increase in power on the dyno by running them open. They open by themselves at 3,500 rpm....most of your dyno graph will be well above that.

Apr 30, 2008 | 03:23 PM

Ragtop 99

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From: Bethesda MD

Rockin Blue 08 did a dyno with the system open and closed. The graph is posted in several threads. I think it averaged about 6 Hp per the printout, although the runs did not start from identical points so the average may be skewed a bit to the high side. The difference was small enough that I decided to save the $1100 price of the NPP system and put it towards headers.

Apr 30, 2008 | 03:32 PM

amped1

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From: Suisun

I think you need to run them open to get a good A/F. I could be wrong.

Apr 30, 2008 | 03:49 PM

Modshack

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From: CHOCOWINITY NC

It's not really going to be any different. Over 3500 rpms the valves are open. max horsepower is made much higher in the Rev range..

Apr 30, 2008 | 04:56 PM

Pilot03EBZO6

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From: Farmington Hills MI

Anything below 3500 rpms though and it would be interesting to compare the torque graphs open and closed... I wonder if it does make any difference even though I doubt I'll put the fuse back in even if it does.

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May 1, 2008 | 07:44 PM

JP84

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From: Northern New Jersey

Thanks for the input was jw cause even though it was probably in my head I swear I feel more response from a dead stop with the fuse out...... Who knows??

May 1, 2008 | 09:52 PM

#10

jcosta79

Le Mans Master

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You can thank Louis at LG for the answer to this one.

Louis noticed a bit more torque down low when they dyno cars this way. (Flaps CLOSED) Mind you these were not stock cars but modded cars with big cams.

Better throttle response and better everyday driveability too.

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