We've spent some time this spring testing different 4 into 1 exhaust designs for the Stage 2 RX-1 turbo, with better than expected results.
This design retains heat better , (especially in heavy snow conditions), for faster turbo spool-up. This eliminates the only compromise in the otherwise superior rear-mount design of our kits. When we obtain a gas tank mount turbo sytem for side by side comparison dyno/spool testing, we'll post the results here. Of course, this will be the exhaust design we use for our Apex turbo testing.
Skydog
This design retains heat better , (especially in heavy snow conditions), for faster turbo spool-up. This eliminates the only compromise in the otherwise superior rear-mount design of our kits. When we obtain a gas tank mount turbo sytem for side by side comparison dyno/spool testing, we'll post the results here. Of course, this will be the exhaust design we use for our Apex turbo testing.
Skydog
peteracing
Expert
" superior rear mounted design" hummmmmmmmmm...
Not so sure it's superior. Depends on type of riding
Not so sure it's superior. Depends on type of riding
Turbo Tim
TY 4 Stroke Master
I was wondering why the spool up seemed so much slower and the lag became so much greater when hill climbing in deep snow . The exhaust gets cooled down and causes it . This sounds like a good upgrade ...........but , couldn't a guy just pull the exhaust off and wrap it or something instead of buying this ?
ken_climb
TY 4 Stroke Junkie
A guy I know wrapped most of his exhaust with header wrap and said it cut his lag in half on his rear mounted mc-xpress.
BlgsRX-1mtn
TY 4 Stroke God
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- '03 RX-1 Mountain LE
With the rear mount systems; couldn't you guys do a Ceramic Coating to retain the heat and avoid the header wrap getting wet? I know that on the snowest forum somebody asked about doing this with the front mounts to eliminate the heat shields near the fuel tank. That is, until someone mentioned the comined heat is too extreme with the turbo unit and header located close together under the hood. They stated the coating would peel off because of it.
It depends on what type of coating you get, the shining looking stuff that will not take heat, or get the real coating that goes on .015 thick.
BlgsRX-1mtn
TY 4 Stroke God
- Joined
- Apr 16, 2003
- Messages
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- Country
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- Snowmobile
- '03 RX-1 Mountain LE
red said:
I don't have a turbo; going with the SC from MPI next year instead but, I was suggesting the actual ceramic coating like high dollar performance headers for cars have for the guys thinking of using the header wrap.
Mountaintech
TY 4 Stroke God
My "in tunnel" portion of my exhaust is getting wrapped for next season. Talked to someone who did it last year and it made a big difference. Install wrap soaking wet, when it dries it shrinks nice and tight. When totally dry thoroughly saturate with high heat paint. After that I will spiral wrap the entire length with aircraft stainless steel lockwire to keep the wrap together.
