what temp are you running your rrp pipe at???

[jason184]

This pipe seems like way too much of a pain in the A$$ to run.

Not at all. Just a vary tunable pipe which is great being that every engine set up so drastically varies in what it needs to perform correctly.

Mine installed per directions also out performed a well set up b-pipe but I found there was a lot left with tuning the RRP, where as a b-pipe is not quite as sensitive

 

[skinnyman]

Here is the info I got
DaSA 1100 TL FS 49
RRP pipe settings
no jet before filter
90 jet in manifold 80 deg water
FV to water box started at 3lbs ended up drying it up a little more
no jet in water box
have no idea of temps all I know my ski goes BRAAAAPPPP

 

[jo5hi3]

Here is the info I got
DaSA 1100 TL FS 49
RRP pipe settings
no jet before filter
90 jet in manifold 80 deg water
FV to water box started at 3lbs ended up drying it up a little more
no jet in water box
have no idea of temps all I know my ski goes BRAAAAPPPP

After I received a phone call today from a very well know builder, he made a very good point. Reading the temp of the chamber is not going to be a good tuning tool, since the chamber is carbon. Every pipe is going to differ in temp based on how is wrapped, how much resin was used, etc.

 

[masterblaster]

I did some testing with this today. I'm finding similar results as you. I was having a very inconsistent "rich" issue off idle. Clearly my problem was due to the waterbox loading up with water. Adding the fcv completely eliminated the issue. I tried many settings for the fcv from opening just above idle to almost not opening at all. I was happiest with it set to start opening just above idle. As I dried the waterbox out using the fcv I continued to lose mid range power.

Im prolly running a very close setting to you. It helps alot. Tim mentions that his new wb further helps with temporary loading up as the tail of ski goes deep on landings and exh begins higher pressure. being this box has no true baffle, Ive not noticed it on my setup but still may be worth a try. While this pipe is very tunable and far less hassle than tuning a pfp,it would be cool to use this new box or a xscream 900 baffled box with a stinger bung welded to the front of it to make the rrp even more tunable as well

 

[Jetrider]

have you tried new settings from?

I have 120 and 110 jets and no valve or restriction to the waterbox, do you think it s better with a valve and a little size jet?

Thanks

 

[Frosty]

installed mine on a Dasa 971 with 49mm full specs... nice difference over a b-pipe. I haven't had much time to tune it, but I am certain I can get more out of it.

Just changed to TL - once the water warms up a bit I will see how it goes.

 

[sneds]

I currently run the 120 and 110 jet that came with the pipe but after talking with Jose last fall, I'm going to try adding a restrictor to the waterbox cooling inlet and drop down to a 90 jet from the 110 in the injector. He also told me to keep the chamber temp under 185 degrees. Temperatures over 185 will damage the chamber... I thought I'd pass on this info hoping it might help others.

Edit: It's probably obvious but, make sure chamber measurements are taken up by the manifold. It will be the hottest there.

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[Jetrider]

Thanks,

I ll try 100 in the injector in a first time.

 

[erik mx45]

i have 110 in injector 120 prefilter! and jetworks flowvalve on waterbox spring cut and 4 turns out! on et 1107

 

[sneds]

This is the waterbox restrictor I'll be trying. 1/8" hole.

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[Waveblaster785]

i have 110 in injector 120 prefilter! and jetworks flowvalve on waterbox spring cut and 4 turns out! on et 1107

I wouldn't run the 120 before the filter, especially in surf. Move it after the filter, will provide the same result but with less chance of a melt down.


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[Jetrider]

Thanks,

I ll try 100 in the injector in a first time.

No difference for me.

I ll try restrictor for waterbox.

 

[hydrostyler]

I currently run the 120 and 110 jet that came with the pipe but after talking with Jose last fall, I'm going to try adding a restrictor to the waterbox cooling inlet and drop down to a 90 jet from the 110 in the injector. He also told me to keep the chamber temp under 185 degrees. Temperatures over 185 will damage the chamber... I thought I'd pass on this info hoping it might help others.

Edit: It's probably obvious but, make sure chamber measurements are taken up by the manifold. It will be the hottest there.

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Here's a thought......If temps over 185 damage the chamber, what happens when guys run their skis in the garage or on shore with no water? Aren't dry exhaust temps near 1000?

 

[Harbor]

Here's a thought......If temps over 185 damage the chamber, what happens when guys run their skis in the garage or on shore with no water? Aren't dry exhaust temps near 1000?

Not had any issues with the chamber getting hot running in garage or elsewhere without water. The chamber itself needs to get hot but the ski's not run that long so no issue.
Before I found out about the 185 I was running mine at 197 and as high as 212.... Up at those temps it melted the glue that holds the assist pad under the top underpadding.