47 replies to this topic

[adrenalator8]

In the last year I have had a lot of experience with all the kits,if you want a safe 240 hp buy a MCX if you want to play around and tune all winter buy a PL or FPP, both the later kits are running on the edge at 240 hp on pump fuel......the reason because they use the stock fuel injection to supply the fuel, where the MCX uses a second set of injectors,
why does this make a difference? because the mcx uses stock fuel pressure for supply, and the other two raise fuel pressure and this taxes the stock fuel system.

we have made a safe 280 hp on the STOCK XP fuel system, where we have had to change pumps pickup's and install regulators to get the same in the other kits.

Cliff

[BLIZARD]

Ran PL stage 2 all winter 2200 miles did not tune all winter gas and go 12 pds boost pump gas my tuning bike RBR LARGER injectors and STOCK fuel pressure no problems perhaps Cliff u might not have seen the latest from PL in my opinion it worked great!

[adrenalator8]

Ran PL stage 2 all winter 2200 miles did not tune all winter gas and go 12 pds boost pump gas my tuning bike RBR LARGER injectors and STOCK fuel pressure no problems perhaps Cliff u might not have seen the latest from PL in my opinion it worked great!

I see you say you have a tuning bike, is this correct?

[gsxr1216]

got a bunch of questions for some of you turbo guys!


who is making the reinforced heavy duty driveshafts?? anybody got any pics of what they do to it??

are there many people who are running a RB3 on a FPP stage 1 or 2 kit??

i know i have read that the stock fuel system is tapped out at around 6lbs on a FPP stage 1 kit, is this because the pump cant supply enough flow/pressure, or is the limiting factor the OEM injectors are run out of duty cycle??

with the RB3 you could you run a bigger injector on the stock pump, could you run more boost and not run out of fuel then??

with the solid engine mounts do you pick up a lot of engine vibration?

thanks!

[turbo89]

got a bunch of questions for some of you turbo guys!


who is making the reinforced heavy duty driveshafts?? anybody got any pics of what they do to it??

are there many people who are running a RB3 on a FPP stage 1 or 2 kit??

i know i have read that the stock fuel system is tapped out at around 6lbs on a FPP stage 1 kit, is this because the pump cant supply enough flow/pressure, or is the limiting factor the OEM injectors are run out of duty cycle??

with the RB3 you could you run a bigger injector on the stock pump, could you run more boost and not run out of fuel then??

with the solid engine mounts do you pick up a lot of engine vibration?

thanks!

You are correct .. the DC is 100% and also the stock pumps on many of these sleds become marginal capacity wise at 240 ish area ...

The MCX offers the greatest ability to bolt on a kit and not have to add on later or deal with tuning issues... NONE of the others offer future expandability like the MCX .. the FPP's will require SIGNIFICANT mods to achieve more power down the road... so much so that you are left with barely anything of the kit... the one thing I do like about the FPP kit is that its not decompressed ... to me this is a significant difference in a trail application..

If you want to do it right the BEST option is to source components and do it yourself .. that will give you the ability to get everything YOU want and have it make sense for your budget as well.. you will have some tuning time as a cost.

If you do not want to deal with any tuning and want to simply bolt something on and forget it ... MCX is about the only option I can suggest .. the others are all LACKING


Also be realistic with your goals and expectations ..if you know you ride in areas where fuel is questionable dont expect to carry the high hp numbers ..

[BLIZARD]

Wow pls fill me in on want is missing from my PL stage 2 kit? Seems to me after 2200 miles NOTHING is missing! LV to know the suspense is just killing me! LOL

[adrenalator8]

Wow pls fill me in on want is missing from my PL stage 2 kit? Seems to me after 2200 miles NOTHING is missing! LV to know the suspense is just killing me! LOL

Don't even get me started, and you didn't answer my question. do you own a tuning bike??

[legend007]

well boys i have made my mind up it.i bought 1050 revs 240kit mcx i think i went the right way. it should be a nice pieace when all done 2013 xr renagade r motion with 2 ply track .and a few other gadgetes .cait wait hope i can keep it more than one year.lol

[BLIZARD]

I see you say you have a tuning bike, is this correct?

Hi Cliff,yes that is correct seems to work well self adjust fuel lean or rich by oxygen sensor in In exhaust parameters can be adjusted if need to,it creates a new map for u,than u can download new map pretty simple!

[turbo89]

Wow pls fill me in on want is missing from my PL stage 2 kit? Seems to me after 2200 miles NOTHING is missing! LV to know the suspense is just killing me! LOL

Try a MCX kit and you can answer your own question ..

I bet your running twice the boost on a bigger turbo and are no faster then the other kits .. you tell me if something is missing..

Your header crack yet ?? it will

RB3 act up yet ? it will

All the kits in some form have some drawbacks ... out of those 3 .. MCX is hands down superior

[snow46]

Try a MCX kit and you can answer your own question ..

I bet your running twice the boost on a bigger turbo and are no faster then the other kits .. you tell me if something is missing..

Your header crack yet ?? it will

RB3 act up yet ? it will

All the kits in some form have some drawbacks ... out of those 3 .. MCX is hands down superior

What am I missing here.Does the pl headers crack? Mine hasnt yet.I have about 3500 miles racing and trail riding.
How much hp will the MCX 240 kit make with good race fuel? How much hp on pump gas? Do they use a head shime?
What fuel system to control 2nd set of ejectors.What size turbo do they use? I need and use a trail friendly set up to ride but also every weekend we do race. Iam used to 240hp trail riding and 300 hp drag racing.I have tried fpp so I guess I need to learn more about the MCX turbo

[adrenalator8]

Hi Cliff,yes that is correct seems to work well self adjust fuel lean or rich by oxygen sensor in In exhaust parameters can be adjusted if need to,it creates a new map for u,than u can download new map pretty simple!

Blizard.

The reason I asked is that's why you got it to run well, but for the 100"s of other guys out there that don't have it, the RB3 can be a nightmare.making changes and downloading maps is easy on the RB3 we do it all most weekly in the middle of winter, mostly fixing bad maps that are sent to the customer saying it's right and 95% of the time there a mile off..

there a bunch of other things that are wrong with the kit as well, but I'm not going to get into it here.

Glad your having a good experiance with your PL kit, but there are many that are not.

[adrenalator8]

What am I missing here.Does the pl headers crack? Mine hasnt yet.I have about 3500 miles racing and trail riding.
How much hp will the MCX 240 kit make with good race fuel? How much hp on pump gas? Do they use a head shime?
What fuel system to control 2nd set of ejectors.What size turbo do they use? I need and use a trail friendly set up to ride but also every weekend we do race. Iam used to 240hp trail riding and 300 hp drag racing.I have tried fpp so I guess I need to learn more about the MCX turbo

Did you dyno that sled to see if it made 300HP or are you just doing the math??

[adrenalator8]

well boys i have made my mind up it.i bought 1050 revs 240kit mcx i think i went the right way. it should be a nice pieace when all done 2013 xr renagade r motion with 2 ply track .and a few other gadgetes .cait wait hope i can keep it more than one year.lol

you will be happy with the mcx kit, it's well built and has the ablility to GO big with out really big expense.

[BLIZARD]

Look not trying to get anyone upset here u said kit is not complete,just wanted to see if u knew something I did not? Not using header or RB3 STOCK exhaust manifold,running RBR and MY TUNING BIKE and BONDI stock mod can no problems just one observation. Ran 3 of these kits this year and had no problems as u mentioned,I do understand that no kit is without downfalls in one area or another,we just have not come across that with these PL 2s. Boost is relative to compression this is the way it was designed with head shim I really don't see downfall here accept for doing shim as I said above I ran 12 pds boost all year have no clue what MCX run,as far as turbo it's a Garret 2860. Anyway we should just be happy that there r companies that have these available all kits should be consider as pieces of working artwork,so since u haven't told me about what I'm missing I guess I have all I need? Just a thought we r all trying to achieve the same outcome and should be glad that info is shared here.Happy holiday to all CHEERS RL