Thread: Free Flow Exhuast
05-02-2007, 01:30 PM #1
- Join Date
- May 2007
Free Flow Exhuast
i have a 2002 gpr and i was looking to put a free flow exhaust on it. is it worth buying and how much speed will i get if any from it
05-02-2007, 01:34 PM #2
05-02-2007, 03:47 PM #3
05-02-2007, 05:10 PM #4
IMO....If you like loud do it. Between 3K and 5K rpm's the soundlevel is annoying. Above and below the 3K and 5K there isnt much difference in the sound.
05-02-2007, 05:53 PM #5
Depending on how your motor is set up,a free flow will help prevent that nasty DETONATION!
05-02-2007, 07:53 PM #6
To directly answer your question with a FF you are louder and you are slower.
Yes a FF will reduce the risk of detonation.
Another choice to lower the risk of detonation is to change the timing. There are quite a few skis running compression as high as 170 lbs not using a FF and they don't have a detonation problem - they are able to do this by reducing the timing.
05-02-2007, 08:05 PM #7
- Join Date
- Nov 2005
- Lafayette, La.
05-02-2007, 08:10 PM #8
Check this out?
Here is a new recipe for a great working free flow:
3 schedule 40 PVC 45* elbow $2.49
Reducer schedule 30 to schedule 40 (adapter some people call it) $4.79 This part makes the orfice.
Schedule 30 street elbow 90* . Cut the female end off form it.
The reducer makes an orfice by making the ID 2.75".
The idea that I made this for is to maintain back psi, but have a SMOOTH Bore that a works great with a jet works kit.
please take it for what it is worth.
05-02-2007, 09:37 PM #9
05-02-2007, 09:46 PM #10
And the finish product looks like this! You need to cut your stock rubber elbows with the straight pipes.
Last edited by WATER WOODY; 05-02-2007 at 09:50 PM.
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