SHR860 vs RK860

[RKT]

I do not beleive the claims of the SHR happy dyno one bit, I give the BB a top HP heat soaked of 167 HP tops which would be beleiveable anything beyond that I do not buy.

Still waiting on those dyno sheets BJ, BSFC, duration and CFM would be nice! Strut your stuff lets see it.

ya know TJ... You are certainly welcome to your opinions.. But they are just that..

Like I stated above.. I have 2 year old (many 860 revisions back) dyno sheets done at DTR (the standard) that clearly show well over 167HP on a heat soaked engine. and then you say. not possible,,

I am not real fond of being called a liar.. I suspect you would not be fond of it either.

and to boot. you are riling up Slim.. you do not want none of that..

Why discredit claims when you have no proof to do so?? Just curious.

Why not.. take anybody's claims for face value? Coming on here and starting a fiasco with no base to support it.. seems unreasonable.


Kelsey

 

[HPJUNKIE]

primary weight i have found over the years to be a great indicator on a sleds performance, if one is pulling 5 grams over stock it generally is pulling much stronger if the rest is the same

so if stock primary weight was 16 and your running 20grams now, you are pulling 20 percent more weight, what is about the 30hp

151 plus 30 should be in the 180 range

if peak hp rpms are the same this formula works great... also can be used for tq differences

so what are the BB running for weight??

I watch all this with a chuckle. Like FredW said, and I've always maintained, you have a very inexpensive dyno on the end of your crank. Had a sled BB a few years back (which I never dyno'ed even though the builder wanted me to bring it back) it pulled 4g more on each arm @ 8600rpm. Good enough for me! When it's time to rebuild my '07 800R guess what, it's going to get a 860 kit. Even though they make no difference...l.o.l...

 

[h3joe]

If your sled would only run as good as you mouth!!!

I do not beleive the claims of the SHR happy dyno one bit, I give the BB a top HP heat soaked of 167 HP tops which would be beleiveable anything beyond that I do not buy.

Still waiting on those dyno sheets BJ, BSFC, duration and CFM would be nice! Strut your stuff lets see it.

TurboJamie, You need to take a hint. No one cares about your HP predictions go find John or Kelsey and beat them. Then report back on how much boost it took to beat their, according to you, unproven products and experience!!!!!!!!!

If you don't have enough to get it done I would suggest a one to two manifold from your mouth to your carbs. On a dyno I predict at least 14 or 15 lbs, maybe more if you have a energy drink before it starts.

If you still cant beat them you might also see HP to weight gains by removing excess dead weight. The weight of your ego and a mushy mass of flesh located higher than your shoulders is holding you back.

 

[Mod Mania]

Turbo Jamie,

I recently had my 09 xp big bored (it is not a SHR or RKT big bore - it does however have RKT head, recurve and pistons) and then dynoed and let me tell you that Big Johns HP claims are more then realistic. The numbers I seen on the dynosheet that I was given for my sled matched very closely to Big Johns claims of 171+hp. I will not disclose any dyno numbers, but I seen exactly 171++++hp. Also my sled is jetted two sizes rich to start until I get some hours on it and then it is game on. Also my dyno sheet had a comparison to a 2010 stocker and the HP difference (both corrected to sea level) was ~27HP.

The only dyno sheet I would like to show you is the one where we line up on the hill in about 4' of fresh snow. I would start out by giving you a couple of sled lengths and then not only would I pass you in style with a large smile on my face, I would run you over in the process

 

[johnny be bad]

i'm not saying he shouldn't run it on a dyno, but that just because one motor has dyno numbers and one doesn't shouldn't be a deciding factor of where you go. Everyone constantly says on here that it's not as much about the sled you buy as it is about your dealer, how is this any different? You may buy a kit that claims to make a 180 hp on the dyno, but if you have tuning issues that cannot be resolved by you or the company, where does that "180 on a dyno" leave you with? An expensive sled that goes no where. What i'm saying is that it is more important to have a good tuner, like bj and kelsey, to get the most out of the kit that you just dropped 2g's on, than a kit that claimed 180, but didn't because of customer support.

I guess to each his own here, but for someone to come on, with no experience with bj, a person that has helped a lot of people out on here, and bash a product that has been proven in the steep and deep, after people constantly say over and over again that dyno numbers are all talk and can be manipulated in so many ways that makes them almost unreliable for true, mountain, realistic horsepower, just doesn't really sit well with me.

hey! Not bashing either of them. Ive just heard the claims of big power for so long and ive now asked 5 times for them to post there dyno pages and they ignore me! If they cant post the info, then i guess they have something to hide. Then whats a guy to believe? I know dyno reports do not tell the hole story, but it is a tuning tool! And dynoing a sled at sea level is bullchit! I like what extreme does! Mobile dyno! Tested at elevation and i know jaws dynoed there motors at golden last year(not sea level) and thats why i call bullchit on these big numbers. If bj and kelsey say there motors make the numbers! Then post the dyno pages and shut us all up. Plain and simple.

 

[winter brew]

I do not beleive the claims of the SHR happy dyno one bit, I give the BB a top HP heat soaked of 167 HP tops which would be beleiveable anything beyond that I do not buy.

Still waiting on those dyno sheets BJ, BSFC, duration and CFM would be nice! Strut your stuff lets see it.

You believe 167 but not 171 .....all this wining over 4HP?? Can you even feel 4HP? You'll see more than 4HP with just a big temperature change .
But thanks for the entertainment

 

[Motley Doo]

hey! Not bashing either of them. Ive just heard the claims of big power for so long and ive now asked 5 times for them to post there dyno pages and they ignore me! If they cant post the info, then i guess they have something to hide. Then whats a guy to believe? I know dyno reports do not tell the hole story, but it is a tuning tool! And dynoing a sled at sea level is bullchit! I like what extreme does! Mobile dyno! Tested at elevation and i know jaws dynoed there motors at golden last year(not sea level) and thats why i call bullchit on these big numbers. If bj and kelsey say there motors make the numbers! Then post the dyno pages and shut us all up. Plain and simple.

Johnny, sorry that last part was more aimed at Jamie, and your right, a dyno can be used as a tuning tool, but it isn't the only one. Maybe posting a "best guess" hp number isn't the best, but that's all people want to hear anymore is straight up hp numbers and if you don't have a figure, you'll probably won't get a second glance. It would be nice to have a mobile dyno to go make pulls at elevation, but, unfortunatly for most companies aside from a few, that is simply unrealistic. It's too expensive to get that data, because in all honesty, for it to be worth it, you would have to bring multiple sets of heads, cylinders, pistons, ignition maps, jetting issues, pipes, and anything else that could have an effect on the horsepower. And to keep a dyno, for multiple days, at elevation, is probably something that is hard to swallow for someone who isn't a factory sponsered.

 

[johnny be bad]

johnny, sorry that last part was more aimed at jamie, and your right, a dyno can be used as a tuning tool, but it isn't the only one. Maybe posting a "best guess" hp number isn't the best, but that's all people want to hear anymore is straight up hp numbers and if you don't have a figure, you'll probably won't get a second glance. It would be nice to have a mobile dyno to go make pulls at elevation, but, unfortunatly for most companies aside from a few, that is simply unrealistic. It's too expensive to get that data, because in all honesty, for it to be worth it, you would have to bring multiple sets of heads, cylinders, pistons, ignition maps, jetting issues, pipes, and anything else that could have an effect on the horsepower. And to keep a dyno, for multiple days, at elevation, is probably something that is hard to swallow for someone who isn't a factory sponsered.

i know an engine builder that did just that last year! They dynoed everything they could get there hands on. And they did it at elevation! You would be blown away with the results!!!! Stk sleds that claim 154hp making low 130's at 2000ft! My thing is, look at the cfm numbers! Ppl claiming high hp# and the cfm numbers are low! Whats that tell you? If the engines not flowing at sea level. Whats it doing at elevation? Food for thought!

 

[Motley Doo]

i know an engine builder that did just that last year! They dynoed everything they could get there hands on. And they did it at elevation! You would be blown away with the results!!!! Stk sleds that claim 154hp making low 130's at 2000ft! My thing is, look at the cfm numbers! Ppl claiming high hp# and the cfm numbers are low! Whats that tell you? If the engines not flowing at sea level. Whats it doing at elevation? Food for thought!

Oh yeah, I can believe it, just go onto Dynotech and seach around, I've spent hours on there in amazement, weather it be from pipes NOT building horsepower or random little engine mods coming through big. That engine builder is lucky, that is a very expensive process. I agree, I think that motors should be dyno'd, but if you have an engine combo that works at altitude in the mountains like BJ's and Kelsey's motors do, should we ignore them because BJ doesn't have access to a dyno at altitude and at temp? Sometimes it's just a luxury some of don't have.... If I had access to a dyno, I'd be building pipes for my weed eater! But sometimes other tuning methods have to be used because of availability and cost.

 

[gus bohne]

Let the dyno races and dyno highmarking begin !!!!

Bought a new zl vette,, took it to get my MONEY BACK !!!

NO DYNO SHEET !!!!!!

Gus

 

[RKT]

i know an engine builder that did just that last year! They dynoed everything they could get there hands on. And they did it at elevation! You would be blown away with the results!!!! Stk sleds that claim 154hp making low 130's at 2000ft! My thing is, look at the cfm numbers! Ppl claiming high hp# and the cfm numbers are low! Whats that tell you? If the engines not flowing at sea level. Whats it doing at elevation? Food for thought!

Tell ya what..

Here is the 1st (of many) XP 860R dyno'd at DTR.. As I said, this was what showed me that I had work to do with the XP.. Afterall..it was a new sled in 2008.

So, take a look.. 2 year old dyno run done at DTR with stock exhaust, stock reeds, stock ECM. This build is totally different from what I build today in many ways..

BTW.. before you pick it apart. This sled is stillup and running and has ran without issue in the state of tune that it left DTR and reflected in this particular dyno run.

Do I have runs that show higher HP.. Absolutely.. This is my lowest dyno run.. NOT the highest...

NOTE THE DATE

 

[johnny be bad]

I'll check it out kelsey! My whole point is claims! Ppl claim and no proof! Personally me, like many others on here, have boxes of hyped up performance parts that didnt work! Anyone remember 911 clutches? What a waste of money that was. But hey! They did look pretty! Lol

 

[TurboJamie]

I'll check it out kelsey! My whole point is claims! Ppl claim and no proof! Personally me, like many others on here, have boxes of hyped up performance parts that didnt work! Anyone remember 911 clutches? What a waste of money that was. But hey! They did look pretty! Lol

You have a more diplomatic way of saying what I am thinking, I have been asked by mods to stop causing trouble in this thread.

To RKT thank you for showing your results all that was asked in the first place.

 

[TT670]

I'll check it out kelsey! My whole point is claims! Ppl claim and no proof! Personally me, like many others on here, have boxes of hyped up performance parts that didnt work! Anyone remember 911 clutches? What a waste of money that was. But hey! They did look pretty! Lol

And of all the stuff in those boxes, exactly how much of it is stuff that dozens of users gave positive feedback? Thats the point the folks on this thread are trying to make. I'll take positive feedback over dyno sheets anyday.

 

[TurboJamie]

I've actually got a few things that received positive feedback only to be duds. SPI Etec Pipe/Paragon clutch/Decker 800 twins (rev chassis)/slide kicks scratchers/dynoport pipe / and Y pipe / Boyesen 85's with power wings...

 

[johnny be bad]

and of all the stuff in those boxes, exactly how much of it is stuff that dozens of users gave positive feedback? Thats the point the folks on this thread are trying to make. I'll take positive feedback over dyno sheets anyday.

the point im trying to make is. Ppl are like sheep! They follow! Some will tell ya how great something is and truth be told, they didnt have a clue if it helped or not! On my xp i ran a 14:1 head i did a can and airbox mod, geared it down and it worked well. That same sled was dynoed at a 3hp peak gain and 10mid range gain,now i ran that sled against the exact xp, except the xp ran a slp pipe y pipe combo.with regear and airbox mod! Guess what sled pulled harder and high mark the best?

 

[nuggetau]

Thanks Kelsey, now will you post the run for what you are CURRENTLY doing? Please include the altitude. Thanks

 

[RKT]

Thanks Kelsey, now will you post the run for what you are CURRENTLY doing? Please include the altitude. Thanks

With all due respect.. Not needed... It was said that one could not make over 167HP.. I provided a dyno sheet that is 2 years old showing that 174HP is easily possible.

The thought that with better porting, head, reeds, more rpm ,and better exhaust that there is not EASILY another 6+ HP on the table is ridiculous ...

Now you show me the 170HP stock bore 800R engine that is bragged about..Then maybe we can compare.. I showed you mine..now you show me yours.. sounds fair does it not??

Kelsey

 

[TheBreeze]

nice

Staying within 2 HP of peak for 500 rpm's. Not to shabby!

 

[nuggetau]

If you were refering to me about a reputed 170hp stock sled you have me confused with someone else!

Just wanted to see what you are currently doing, what you did 2 years ago isn't really what I wanted to know, I wouldn't be buying 2 year old product.