Robby Gordon didn't steal my money!

[37 boat]

That is all

 

[DaveC]

She sure is a beauty Clark

 

[4Waters]

Has anyone built a custom "SXS" (home built) with a turbo charged street bike engine in it that you guys have seen out there?

 

[Icky]

Has anyone built a custom "SXS" (home built) with a turbo charged street bike engine in it that you guys have seen out there?

A few R1 rhinos back in the day. Along with some busa motors. And then you have pace offroad doing the Z1 swaps. Buckshot had the bullet, BFD had the Revo and a few others her and there.

 

[Orange Juice]

That is all

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Looks nice. Is it for sale?

 

[River Dirt 2]

Welcome to the team, you will love it!

 

[Hardly Satisfied]

Nice ride

 

[Romans9]

Nice! Time for some action shots…..

 

[WildWilly]

Has anyone built a custom "SXS" (home built) with a turbo charged street bike engine in it that you guys have seen out there?

Drakart is about that

 

[TBulger]

I sure love those Speeds, nothing better looking.

 

[Maw]

Has anyone built a custom "SXS" (home built) with a turbo charged street bike engine in it that you guys have seen out there?

I have a 200HP Evinrude 2-stroke outboard motor sitting on a stand in the back of the shop. Almost every time I walk past it I think about doing a SXS with it. Guessing +250HP with tuned exhaust, free flowing intake, a bit of massage to the ports, . . .

 

[Mikes56]

I stopped by Robby’s shop a couple months ago. Didn’t want one until I saw one in person, dammit!

 

[Racey]

Has anyone built a custom "SXS" (home built) with a turbo charged street bike engine in it that you guys have seen out there?

Yes. Most of them were 2wd drive.
Also the motorcycle transmissions don't have fantastic strength as they don't have to deal with shock loads and continual torque in a bike that stays on the ground, and weighs much less.

 

[RiverDave]

That is all

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Take that windshield off it..

 

[Boatymcboatface]

Take that windshield off it..

RG does it again! Introducing the class leading UTV that you need to remove factory installed accessories before you can drive them.

 

[RiverDave]

RG does it again! Introducing the class leading UTV that you need to remove factory installed accessories before you can drive them.

Dude be quiet.. we already got a thread for that bullshit

 

[Boatymcboatface]

Dude be quiet.. we already got a thread for that bullshit

Sounds like you need a beer

 

[RiverDave]

Sounds like you need a beer

No just my tolerance for people running around being negative about everything is wearing out..

Guy is happy about his new toy let him be happy.

 

[BHC Vic]

No just my tolerance for people running around being negative about everything is wearing out..

Guy is happy about his new toy let him be happy.

I thought I read Robby ran a windshield and all was good now? Maybe I misread or maybe the temps were low enough? Or maybe no nets makes a difference?

 

[FlyByWire]

Such a good looking car. Congrats!!

 

[zhandfull]

Has anyone built a custom "SXS" (home built) with a turbo charged street bike engine in it that you guys have seen out there?

Not sure if these would be classified as SXS but they look pretty fun.

 

[zhandfull]

The Speed car looks awesome!

 

[RiverDave]

I thought I read Robby ran a windshield and all was good now? Maybe I misread or maybe the temps were low enough? Or maybe no nets makes a difference?

E85 runs cooler than gas is my guess.. im
Gonna relocate the radiator.

 

[BHC Vic]

E85 runs cooler than gas is my guess.. im
Gonna relocate the radiator.

Now that you said that I think I also read that.

 

[dirtslinger2]

E85 runs cooler than gas is my guess.. im
Gonna relocate the radiator.

I've had my windshield in since Thanksgiving

 

[4Waters]

Not sure if these would be classified as SXS but they look pretty fun.
View attachment 1330535 View attachment 1330536

My buddy had one of those and he said it was a blast but a SXS would be awesome, the trans is the issue

 

[Warlock1]

Sinister Sand Sports or something like that used to build some really radical stuff with GSXR engines.

 

[Outdrive1]

That is all

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Congrats, nice looking graphics.

The blue one posted is all me, love that color.

 

[SOCALCRICKETT]

No just my tolerance for people running around being negative about everything is wearing out..

Guy is happy about his new toy let him be happy.

Lol, no shit man.

Dude has a trick ride, be happy for him. Not everybody has to like the same things, that's what gives life color and character.


... yeah, yeah, I know that sounded like some hippy shit, but it's true if everybody liked and had the same stuff life wouldn't be nearly as interesting.

 

[Shlbyntro]

E85 runs cooler than gas is my guess.. im
Gonna relocate the radiator.

I can confirm. The energy density of e85 is roughly only 70% of a like volume of pump gas. Not only that but ethanol is more stable and slower burning in comparison. All this makes for cooler combustion temps with properly tuned engines.

Easy ways to bring down combustion/engine temps is increasing fuel and/or retarding overall timing.

+5psi fuel pressure on port injection and/or -2° overall timing should probably do it. (or you can reduce boost if you're turboed)

or the ecm can be retuned to do it, or there are inline O2 sensor resistors that can be installed to trick the computer into doing it on close loop fi system.





disclaimer:
*tinkering with engines voids most manufacturers warranties*

 

[wzuber]

Take that windshield off it..

Curious to understand what about this comment is "positive"?

 

[Shlbyntro]

Curious to understand what about this comment is "positive"?

It creates positive airflow into the radiator

 

[v6toy4x]

I don't do SXS but what RG has done is beyond impressive, its sad that the speed vs. the rest of the UTV world commentary is right up there with

republican/democrat
union/non union
pro cal/anti cal
vax/no vax

Haters will be Haters

 

[RiverDave]

Curious to understand what about this comment is "positive"?

Was just giving a piece of advice before he runs into a problem like I did.

 

[Racey]

I can confirm. The energy density of e85 is roughly only 70% of a like volume of pump gas. Not only that but ethanol is more stable and slower burning in comparison. All this makes for cooler combustion temps with properly tuned engines.

Easy ways to bring down combustion/engine temps is increasing fuel and/or retarding overall timing.

+5psi fuel pressure on port injection and/or -2° overall timing should probably do it. (or you can reduce boost if you're turboed)

or the ecm can be retuned to do it, or there are inline O2 sensor resistors that can be installed to trick the computer into doing it on close loop fi system.





disclaimer:
*tinkering with engines voids most manufacturers warranties*

Retarding timing will often raise engine temp as less of the energy is turning into mechanical force and more is turned into wasted heat exiting the exhaust port and in turbo charged motors, this raises the turbo speeds and boost, so the waste gate then bypasses more of this energy.

As an example, 2 degrees of timing advance can drop egts like 50-75F on a big block. Which is huge in saving your exhaust valves as well on strung out high hp motors.

 

[wzuber]

Was just giving a piece of advice before he runs into a problem like I did.

I see, what is the problem the windshield creates? Seems removal creates another problem by having the passengers more exposed to getting roosted by a vehicle in front while offroading? Maybe you're far enough appart where that's not necessarily an issue or common issue?

 

[Shlbyntro]

Retarding timing will often raise engine temp as less of the energy is turning into mechanical force and more is turned into wasted heat exiting the exhaust port and in turbo charged motors, this raises the turbo speeds and boost, so the waste gate then bypasses more of this energy.

As an example, 2 degrees of timing advance can drop egts like 50-75F on a big block. Which is huge in saving your exhaust valves as well on strung out high hp motors.

those are EGTs not engine coolant temp. retarding ignition timing in the vast majority of situations reduces cylinder pressure and therefore almost always cylinder temp which generally means lower coolant temps.

yes, if you retard tour timing too much, the fuel is still burning as it's running out the exhaust which will raise your EGTs. there is a delicate balance but most engines will have an area of play of 1-2 degrees in either direction that you can safely move depending on what your goals are.

 

[Racey]

those are EGTs not engine coolant temp. retarding ignition timing in the vast majority of situations reduces cylinder pressure and therefore almost always cylinder temp which generally means lower coolant temps.

yes, if you retard tour timing too much, the fuel is still burning as it's running out the exhaust which will raise your EGTs. there is a delicate balance but most engines will have an area of play of 1-2 degrees in either direction that you can safely move depending on what your goals are.

When the air leaving the cylinder is drastically hotter it heats the combustion chamber and exhaust port on the way out

Reduced timing will keep the top of the piston cooler though.

1-2 degrees in a big block, NA, no problem.

These little high efficiency chamber short stroke max performance motorcycle engines, 2 degrees is huge. They adjust timing in fractions of a degree. My guess is they are running probably 15 degrees or less under boost.

 

[Shlbyntro]

When the air leaving the cylinder is drastically hotter it heats the combustion chamber and exhaust port on the way out

Reduced timing will keep the top of the piston cooler though.

1-2 degrees in a big block, NA, no problem.

These little high efficiency chamber short stroke max performance motorcycle engines, 2 degrees is huge. They adjust timing in fractions of a degree.

the heat is in the combustion chamber regardless but more heat is generated if the mix is fired earlier creating higher cylinder pressures.

 

[4Waters]

I see, what is the problem the windshield creates? Seems removal creates another problem by having the passengers more exposed to getting roosted by a vehicle in front while offroading? Maybe you're far enough appart where that's not necessarily an issue or common issue?

It overheats with the windshield in it

 

[jesco]

I thought I read Robby ran a windshield and all was good now? Maybe I misread or maybe the temps were low enough? Or maybe no nets makes a difference?

He had it on at KOH when we were lined up for Prologue/Qualifying. It was 730AM in Johnson Valley and probably 45* out (+/-). Not sure if he left it on or not, but he told me he was since it was so cold out.

 

[rivermobster]

those are EGTs not engine coolant temp. retarding ignition timing in the vast majority of situations reduces cylinder pressure and therefore almost always cylinder temp which generally means lower coolant temps.

yes, if you retard tour timing too much, the fuel is still burning as it's running out the exhaust which will raise your EGTs. there is a delicate balance but most engines will have an area of play of 1-2 degrees in either direction that you can safely move depending on what your goals are.

I can tell you I Have seen engines run hot as well, due to retarded timing.

You're right though. It is a balancing act. Everything Must work together.

 

[Englewood]

Best looking car for sure....The bed is the best part...Miss that from the rhino days.

Suspension on the speed is the best in the game...Cool car...Congrats!

 

[River Dirt 2]

Little more air time at KOH