Question for front mount turbo trail riders

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yamadooman

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2023 SRX
I am contemplating a front end turbo specifically a CPR.. Have any of you who trail ride.. I'm talking 1500 -2000 miles a year, not just lake racing, had any problems, underhood heat, cracked headers, anything? Would appreciate any help.. Thanks in advance.. Chad
 
We had some minor problems first year trail riding our CPR turbo but mostly because of being new to the turbo. There is alot of heat under there and you have to be very careful about how you route wires and hoses around the turbo and header to keep them from melting. Only other problems were just learning curve things like tubes getting torn and T's coming unglued. Only problem I haven't really figured out yet is how to keep the turbo from melting airfilters, you have to clamp them on very lightly to keep the flange from melting apart. I pulled ours apart this spring to switch over to asphalt and did find a couple of small cracks in the header that I had to weld up, but to be fair it had some very very rough trail miles on it. May try one of the billet trail braces next season although I don't really see it being a major problem. Towards the end of last season we were having absolutely no problems with it at all, it did quite a few 150-200 mile days without a hiccup. You will undoubtedly go through some growing pains if you decide to go turbo but the CPR is a great setup that is plenty trail reliable and deffinitely runs awesome.
 
Been der .Run good fuel; low compression pistons or extra headgasket adds some insurance & does not hurt low end throttle response. No real underhood heat issues but I just suffered my 1st cracked header. Make sure you run at least a boost guage for extra insurance. Basically; pretty reliable & a lot of fun!!!!! Just remember to let the sled idle for a minute after a wot run.
 
We are running several of the CPR kits out of my shop and are having very good results. I agree with the previous post about watching how you run lines and wires, but we have had no melting wires or cracked header issues. All things considered, it is a great setup! We are in the process of putting a 28rs setup on an 04 Warrior currently. We have made it a practice to run the MPI billet carb tees on all installations.
 
I have the CPR also and ran it for a full season. It is a really great fast trail sled. The only problem so far is the air filter where it attaches to the turbo. I have a new one and will am going to try 1 wrap on insulation between turbo inlet and filter. I wrapped all wiring by the turbo with the same self adhesive foil faced thermal insulation and have had no problems.
 
I’ve run both the CPR trail kit with the GT-25 Turbo (i trail and raced this kit on the grass/tar), and now run the GT-28 turbo (on ice and now tar). I’ve switched to being mostly a drag racer mostly due to low snow conditions, and also my love for racing has gotten more intense in the past couple years. In the beginning I had some gremlins, but worked them out and I believe that the CPR kit is the best out there. CPR is very supportive and the customer support is excellent.

--Buster696--
 
Buster you are kissing butt again, I thought we had the self esteem talk last year. HeeHee. Your out in front johnstown buddy.
 
Hey (mr. tell me your setup) Lyman, no kissing butt here… tell me one thing that isn’t true what I said… just because you can’t get along with Jeff, not my fault… He, he…

--Buster696--
 
I also have a CPR kit, found that the air filter is not going to stand up. I fixed the problem, get a 2" of silcone hose. I got my from work, truck shop. Then a piece of ducting either made from alu, exhaust pipe, then put the filter onto the end of it. Another way would to be find a speed shop and look for a silcone hose that is the right size with a 90' elbow, hook the filter to it. I have over 3000kms trouble free now with the air filter setup. I know some people have used a rad hose of an INT truck and put the air filter behind the windshield area since the gauges are mounted to handle bars. But have also seen some rear mounts melt the air filter, so they are no better, since the heat under the seat. I just put the T's in, cheap at $40 for the pair. Doesn't matter who makes the kit the header will crack, even the stock yamaha exhaust will give problems for the rear mounts.
 
The header I ended up with is a CPR. I am having it gusseted and braced up before I install it. As well I got the turbo brace to help take some of the load. I am wondering where most of the headers are cracking so maybe I can re-inforce it in the right places before I even install it.

Thx
 
I saw one crack. It cracked right where the Turbo bolted to the header. One thing that will also help the life of your header is Ceramic Coating.
 
I plan to coat it after it is rewelded. I have to say that I've seen better welding jobs in my time. Clearly whoever welded it overheated it in quite a few places, as well there were some pretty big chunks of weld inside the tubes which needed to be ground out.
 
hey guys,

I run a front mount MCX kit and at the end of last season I was riding on Mt Baker in 70' temps and running 10-12 lbs. It got warm but did ok. I definitely heated my belts and will go back to running yamaha belts instead of duramax belts. As far as your air filter goes, I bought some flexible metal exhaust pipe (2" I think" that clamped right on to the turbo and I ran it forward next to the intercooler up to the nose cone where it gets cold air. You all might consider doing that if you can on your CPR kits.

Rt
 
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