My SRP build

[smithabusa]

Doubt it I run full exh on both my turbo bikes. Gate spring determines boost pressure not exhaust type, assuming proper gate and porting etc.
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[killerrudy]

Does anyone have a pic of an RCC kit with full exhaust? I would love to compare the two for phyicial differences.

[theskaz]

So you took the bike to the shop that has tuned several Turbo Hayabusa's well over 550 HP and the bike and tuning you brought to them they have had a problem with?

What the heck did you do to the bike before it went to them? If you already had a boost by Smith box/ECU re-programmer then why did the MAP you were sent not work?

Seems fishy since I have no problem with them tuning and working on any of my bikes.

Lets see:

218+ mph sidecar, WORLD'S fastest record holding Sidecar.

252 MPH Dirt bike, World's fastest bike ever anywhere on dirt.

239+mph bike in Australia, FASTEST open wheeled bike EVER in Australia and track record holder since 2006.

259+ mph at Bonneville and the first 250+ two way average record with a 252+ average speed.

Turbo Busa Rear Engined modified Roadster powered car, 209 average speed at Bonneville..again same place that tuned all of my Turbo Hayabusa's..

Seems like your bike is having some issues that may be bike related or worse OWNER related..if they are having problems the shop can't fix then you have major issues.

Did you work on the bike before you brought it to them? What did you do to the bike before you brought the poorly running freshly installed wannabe turbo system to them?

Seems like you are a keyboard jockey and if you came to me I would tell you to take your bike and hit the road.

Too much work out there with folks trying to keep their bikes running in this economy than to work on, I had a guy on the site you wanted nme to install and tune his Turbo Busa and I quoted him $1,500.00 for labor and tuning, he thought it was too much and then said yes..he wanted to "watch" me do the work so he could then show is 10-15 "friends on the internet" how to do it and share the map I would have made for his power commander.

I told him no, it is $ 1,500.00 and you will get your bike in 1-2 weeks depending on my workload. ( I was working a 40-60 hour day job and also building engines for other racers at the time) He thought I was crazy and found a "builder" who did it twice for a little more than half of what I quoted (each time) and then was pissed at me for not warning him..Fook the internet builders..

What the heck is a skaz..."Super Kaz"

A penny saved is a dollar wasted.

John

You quoted my picture so I assume you are talking to me. First off, no one was questioning Bobs ability to tune a bike. The issue was that he could not get the ECU to flash. I went down there and figured it out and now he can. THAT is what all of this was about. It was simply a small quirk that you had to turn the key on already in the flash position. Thats not Brian's, Bob's, or my fault. Also, according to Bob, he has never used this ECU editor before. Besides that, everything has been positive. We know what your stance is on the kit and the fact that we installed it ourselves vice having someone else do it. You made your point and if you have nothing else productive to offer, kindly leave this thread.

Side note: Skaz is the pronunciation of the first syllable of my last name and is what I went by in the Marines.. since you asked.

And I assure you, Keyboard Jockeys we are not. We arent Professionals but we arent just some geeks off the street.

[smithabusa]

the difference is on the porting done to the turbo which wont be seen in assembled photos
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[smithabusa]

U can put a 3 inch pipe going to a wastegate, if its being fed by a 1inch hole doesnt do any good if that makes sense. You arent able to let enough exhaust gas bypass the turbo is the reason you dont have control over boost, assuming correct spring is installed and everything else is correct etc
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[killerrudy]

Thank you very much Greg!

[OB_John Noonan]

theskaz,

Thanks for your information..and I know for certain Bob has used the ECU editor however not on 08-09 Busa's..

Bob is used to installing premium turbo complete kit's and also putting kit's together from scratch for several different hayabusa powered LSR vehicles.

These posts are proving to be a good reason to buy a nice kit from known suppliers like, RCC, Big CC, Velocity, NLR etc...

And I will be staying around thank you,

John

[OB_John Noonan]

Thank you very much Greg!

Brian,

In your signature below you show the turbo bike as being a stage 2 kit however I thought you had a stage one bolt on kit?



('08 Hayabusa (Stage 2 SRP) grey/black)

[killerrudy]

Brian,

In your signature below you show the turbo bike as being a stage 2 kit however I thought you had a stage one bolt on kit?



('08 Hayabusa (Stage 2 SRP) grey/black)

If you talk to SRP the only difference between their stage 1 and 2 is that the stage two runs off of a GM 3 bar and not the FMU. That is why I labeled it as such.

[2wicked]

For the record we (RCC) do supply Stedman the header and exh pipes for his kits, howevere if you are having boost creep issues it will be due to a poorly, improper, or non-ported turbine housing, which is the exh side of the turbo, we do not supply Stedman turbos, only the fabricated parts. If the wastegate has a 3 psi spring in it, it should make 3 psi regardless of the exhaust option, dump or full pipe. If it does creep it will be due to the turbine housing.

Richard

[theskaz]

theskaz,

Thanks for your information..and I know for certain Bob has used the ECU editor however not on 08-09 Busa's..

Bob is used to installing premium turbo complete kit's and also putting kit's together from scratch for several different hayabusa powered LSR vehicles.

These posts are proving to be a good reason to buy a nice kit from known suppliers like, RCC, Big CC, Velocity, NLR etc...

And I will be staying around thank you,

John

Cool, but up until now, there hasnt been an issue with the kit or the installation. Thats coming from Bob. And according to him, he used another program to flash the ecu on the Gen I's. Now there is an issue with the kit and it is enough for me to get the RCC kit when I decide to turbo.

[2wicked]

Does anyone have a pic of an RCC kit with full exhaust? I would love to compare the two for phyicial differences.

I could show you a pic, but it would look identical to what you have, because what I sold Jay are the same parts we use in our kits. Difference will be I make sure everything is right before our kit ships, which is why you never hear of boost creep from one of our kits, other problem could be that the spring in the gate is not the right one. Either way sounds like a quality control issue on the end of the seller.

Richard

[theskaz]

Also I agree that this thread is a good way to inform future guys that want this kit as to what is in store.

[killerrudy]

For the record we (RCC) do supply Stedman the header and exh pipes for his kits, howevere if you are having boost creep issues it will be due to a poorly, improper, or non-ported turbine housing, which is the exh side of the turbo, we do not supply Stedman turbos, only the fabricated parts. If the wastegate has a 3 psi spring in it, it should make 3 psi regardless of the exhaust option, dump or full pipe. If it does creep it will be due to the turbine housing.

Richard

I was in no way trying to knock you at all Richard. I was asking for a picture, because I wanted to see if there was a difference in design, the routing of the wastegate and turn-down, or anything really (externally) different. Thanks to your hardware there is something good on my bike. It does show wonderful craftmanship!

[2wicked]

How would the RCC kit be any different? Richard makes the exhaust for both kits? Why would he place the wastegate in a inefficient location on one kit, but not the other? Has anyone else had creep issues?

Nothing to do with gate placement or the exh itself. Has to due with someones knowledge of a turbo, turbine housing and size and shape of the wastegate port. All of which is not supplied by RCC,

Richard

[OB_John Noonan]

If you talk to SRP the only difference between their stage 1 and 2 is that the stage two runs off of a GM 3 bar and not the FMU. That is why I labeled it as such.

Gotcha,

Thanks...I have several turbo bikes and always thought a stage two was more than that from srp..like secondaries (aftermarket fuel injectors), and another fuel rail. (I know the 08-11 models have OEM secondaries stock)

The reason I believe in Bob's work so strongly is our racing results..he has taken a stage one kit that was making 230 and in a few hours went through it and made 340 rear wheel HP..I then let him ride the bike at the Mojave mile and he went over 200 several runs in a row with the bike wheeling over 160-180mph (stock wheel base) and the bike starts right up and purrs like a kitten..

FYI, the bike does have forged pistons and connecting rods..

Richard..his spring is a small Yellow (3.85psi)

[2wicked]

One more question. This comes from my need to disassemble my wastegate upon installation for clocking.

Would the spring in the wastegate be different for someone who installes a full exhaust?

If I called SRP tomorrow and told them I wanted a full exhaust instead of the dump pipes they sent me would they then tell me that I need a different spring in that wastegate?

Just wondering since I happened to see a couple of different spring ratings when I looked into purchasing my own wastegate.

Dump pipes or full exh will make no difference in spring sizes or boost #s, it will be due to the wastegate port in the turbine housing, and for those interested, wastegates come preclocked in RCC kits, we do not expect customers to disassmble parts of the kit and then reassemble it properly themselves once they recieve it.

Richard

[2wicked]

Gotcha,

Thanks...I have several turbo bikes and always thought a stage two was more than that from srp..like secondaries (aftermarket fuel injectors), and another fuel rail. (I know the 08-11 models have OEM secondaries stock)

The reason I believe in Bob's work so strongly is our racing results..he has taken a stage one kit that was making 230 and in a few hours went through it and made 340 rear wheel HP..I then let him ride the bike at the Mojave mile and he went over 200 several runs in a row with the bike wheeling over 160-180mph (stock wheel base) and the bike starts right up and purrs like a kitten..

FYI, the bike does have forged pistons and connecting rods..

Richard..his spring is a small Yellow (3.85psi)

So the spring is correct, it will be a port issue in the turbine housing,


Richard

[killerrudy]

So the spring is correct, it will be a port issue in the turbine housing,


Richard

That makes me so happy!! Nothing like getting it all together just to have to take it back apart.


And I don't want to hear that I wouldnt be doing this one more time if I had bought an RCC kit!

[POWERHOUSE]

Ok, I'm not an expert by any means.......I'll leave this one up to you guys. Did a little investigating since I'm installing this same kit. Could Rudy's problem be compounded by the full exhaust that he added to the bike from RCC? I'm not sure what SRP would say about the full exhaust. I'm not sure the kit was intended to run a full exhaust system. Maybe it shouldn't matter but I'm just spit balling here.

Could he alleviate some of the problems by trying the dump pipes instead of the full exhaust?

You make a very good point here, and you are right, but not how you may think - actually, the opposite. While I agree with Richard that when the turbo is ported correctly and the wastegate is flowing properly, a full pipe or a dump will not make a difference- that is, the system will not spike with either setup because the turbo is right. However, when there is a problem, a full exhaust system would dampen (lessen) the tendency to spike, while a dump style exhaust would exacerbate the problem - that is, make it worse. We have seen this many times on kits like the Hahn kits that have flapper-valve wastegates with actuators. The Hahn Stage One kits come with full exhausts and have minimal issues with spiking. Install a dump pipe, however, and the problem tends to get worse! When something like this happens, it is an indication that your setup has some problems. Please keep in mind that I am in no way advocating the use of a full pipe to address a problem like this, since the addition of a full pipe will only "mask" the symptoms and will not properly solve or eliminate the original problem.
It is not a good thing that this is happening - however, it is good that it was found on the dyno and not in the street. This is another blatant example of how a seemingly simple turbo dyno tune became a major hassle because of poor machine work. I feel sorry for the tuner who has to take the bike on and off the dyno multiple times to correct problems he didn't cause . . . I'm sure it ruined his day as well.