Thread: Side draft manifold.
07-23-2006, 09:05 PM #1
- Join Date
- Dec 2005
- Jax Fl
Side draft manifold.
What are the pros and cons to using a side draft manifold on a 97 gp12?
07-23-2006, 10:53 PM #2
Here is a Post from several months ago you will need to go through all of it at the end TJ Race has some pointers I believe from what I have read that it is an improvement cons are possible water ingestion I have never tried it so hopefully someone will jump in and help.
07-24-2006, 01:37 AM #3
Just do it I wish I had.
Upside is more low end and midrange pull.
07-24-2006, 11:41 AM #4
You are very wrong Scott, there are many downsides with water ingestion being one of them.
07-24-2006, 01:27 PM #5
I have no water in my hull so its no problem.
If I did I would find out why and keep the water out.
07-24-2006, 01:29 PM #6
I agree with J-ME if you dont have a dry hull then dont do it.
07-24-2006, 10:50 PM #7
What are the things to look for as far as generic water leaks in the GP Hull? I had the ride plate insert problem and suspect the previous owners repair contributed to water leaking there. But my hull always has a couple inches in it. What are the tips and tricks here?
07-25-2006, 09:34 AM #8
On of the BEST things to try is this.
In a dry driveway, put your drain plugs in, pull your seat, and fill your ski up about 6-12" of water. Make sure that you do not get any in your carbs or engine.
Crawl underneath for about 15 minutes, and start looking around. You might just be surprised...or not.
07-25-2006, 11:44 AM #9
The seat seal is the biggest culprit on the GP, the front storage lid is a close second.
The shortie ("sidedraft") style intake manifold provides quicker throttle response but moves the torque peak up the rpm band. Not exactly where I would want it.
Works best with triple pipes,IMHO.
07-25-2006, 12:15 PM #10
There is a noticable power increase throughout, on single
or tripples. The down side is the water injestion potential.
I believe Riva made a splash shield at one time.
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