ATV Drag Racer Forums banner
Cancel

700 Tubo

5688 Views 28 Replies 8 Participants Last post by  Kawiking, 
P
We finished instaling the turbo on the raptor 700 today. Everthing is working fine exept! When we open the throtle at half way there's some king of rev limiter that stop the bike ?

The clutch lever bypass is done. Disconected the speed sensor as required. Verified al the other limiter i thought might be stoping, with no succes and the guy that might help me is off.

If any of you guy's think about the same situation please let me know. As I explianed neutral and every gear, a the mid way of the throtle the bike studers. Slow or fast it's at the mid point on the gaz. I would say 3500 to 4000 Rpm.



Thanks for any of your input.
Reply
Save
Like
1 - 20 of 29 Posts
SaNdBuM
Can you explain the "studder" some more?


What psi is your fuel reg. reading? also boost?

Another thing is you could be floating the valves. just something to keep in mind.
Reply
Save
Like
P
It's like a rev limiter we can hold full throtle and the bike seam to have a cut off.

We are only going to get the fuel pressure monday but the plug is on the rich side . We tried holding in third gear and the bike hit the kind of rev limiter and you can hold it there and it's just stoping us arround 3800rpm. Boost is 8psi.

Sorry for the ingnorence but, Floating the valves?? Can you explain this to me? There's a web cam adj to there spec of .006 to .008, where at .007 and there's no chatering from the head.

We can hold third gear at mid point 3800 rpm a kind of safety hits us and we cant go faster.
Is there a site where all the diagnostics might be ???

Thanks buddy!
Reply
Save
Like
P
Got the info for the valve floating! I don't know if it's the probleme but we have the spring kit. The same motor was working fine? Still questions in my head?????
Reply
Save
Like
woofers67
Could be compressor surge. Who's kit do you have. Is the turbo mapped to the engine set-up? Turbo, cam, compression, ecu controller? Do you have a BOV and what size head pipe are you running lenght , diameter ,& wall?

Lots of question but needed to help you find your problem...
See less See more
Reply
Save
Like
P
Had it on a dyno yet? My 700 turbo did the same thing, the boost throws the AFR all to hell sometimes
Reply
Save
Like
P
3
Hey there buddy wanted to make sure you see this so i send you a Mp.

The kit is a Yakahosu Dalbach Racing. If there's a # to join you it would be appreciated because there's alot of test that I did, and it would be almost a novel to right here.
Tried on a ported bike was told to try it on a stock one still the same thing.

The setup is stock comp as we where told, web cam & spring kit, ECU yakahosu to controle the extra injector.

Did not want to go spend to much time on a dyno with something that was suppose to be plug in. I can go this week but i'm not shure where going to get results. The company send me anothere ECU this week thinking the other box was fried and still no progress
. One thing that is good there service is incredible but still no turbo working. Any one with info is greatly appreciated.

I'm like a kid in a candy store with his hands tied behind his back.

Thanks for your help !


WOOFERS67 The kit on your bike look awsome nice stuff even if just got a peek.
See less See more
Reply
Save
Like
G
3
QUOTE (Portking @ Jul 27 2008, 10:34 AM) index.php?act=findpost&pid=6677Hey there buddy wanted to make sure you see this so i send you a Mp.

The kit is a Yakahosu Dalbach Racing. If there's a # to join you it would be appreciated because there's alot of test that I did, and it would be almost a novel to right here.
Tried on a ported bike was told to try it on a stock one still the same thing.

The setup is stock comp as we where told, web cam & spring kit, ECU yakahosu to controle the extra injector.

Did not want to go spend to much time on a dyno with something that was suppose to be plug in. I can go this week but i'm not shure where going to get results. The company send me anothere ECU this week thinking the other box was fried and still no progress
. One thing that is good there service is incredible but still no turbo working. Any one with info is greatly appreciated.

I'm like a kid in a candy store with his hands tied behind his back.

Thanks for your help !


WOOFERS67 The kit on your bike look awsome nice stuff even if just got a peek.


i wouldnt expect any turbo to be plug and play... get it on dyno and a wideband and find out what its doing if your any were near my place (sw Kansas) i wil help you out..
what size of injectors do you have ? is it gas or methanol
is the map sensor on the bike hooked up the boost or they over riding it?
does it have a plenum?
if so what size is it?
I could go on and on....
See less See more
Reply
Save
Like
G
2
QUOTE (woofers67 @ Jul 25 2008, 12:05 AM) index.php?act=findpost&pid=6434Could be compressor surge. Who's kit do you have. Is the turbo mapped to the engine set-up? Turbo, cam, compression, ecu controller? Do you have a BOV and what size head pipe are you running lenght , diameter ,& wall?

Lots of question but needed to help you find your problem...



hey woofers I like to see some more pics of your setup looks killer

What the hell is sticking out the side of your plenum? or is it a optical illusion? LOL
See less See more
Reply
Save
Like
woofers67
5
Portking , I would think that the Yakahosu kit was mapped and sized correctly. I'm with GPracerX get it on a dyno load if possible. If you can send me some close up pics. of your turbo , ecu controller , & throttle body. I may be able to help more. Thanks ...



GPracerX, Thats my spray bar for the intercooler. We use the NOS purge to cool the intercooler..


Few more pics....



See less See more
Reply
Save
Like
P
A Car guy arround here told me that the boost might be interfering with the spark plug when i hit the gaz hard.

We tried more and less gaz all with the same effect. Unplugin the extra inj does the same but it backfires to lean. More gaz is more black smoke and we tried a second ECU and Dalbach send us anothere of there ECU foe the extra inj.

Here's a video of the soud it makes. Hope somebody got this sound out of a turbo and can help me out. I will post the pic tommorow.

Thanks

http://fr.youtube.com/my_videos#
Reply
Save
Like
carolina shaker
portking have you tried removing the air tube that runs to the throttle body and UN hook the fuel controller and run it stock just to See if it revs up clean with no boost
Reply
Save
Like
P
We tried with air tube removed from the TB does not allow me to rev up even when i go slow. Tried stock inj and it backfires lean condition. There's a T after the bov that hooks up the throttle body and the Air dens module. I was told to unplug the T still the same problem. When we rev it up slow it generates boost as soon we blip the throttle it make the sound from the video. Even when we rev slow and mid point we blip to full throttle it does the same.

Gaz pressure is constant a 48 to 50 Psi. I'm a the point of putting the hole bike in a crate on a train and shipping it to one of you guys!! LOL!

Seriously thanks for the help you guys giving me.
Reply
Save
Like
carolina shaker
what i would do is pull Avery thing of and put it stock and see if you have a problem else wear .you may be chasing a electrical gremlin thats not related to the turbo and if revs out fine withe the turbo removed . thin i would start looking at the turbo but i don't believe its in the turbo . it sounds like you have a electrical problem i know that sounds like a lout of work but it will keep you from chasing your tale , and if the problem is there with the turbo removed ,fix the problem and put the turbo back on
Reply
Save
Like
P
Sorry forgot to tell you already tried the gremlin LOL!

Tried the raptor with no turbo pulling realy nice run nice plug colour mid point on the strap ??? even tried the turbo on a stock raptor same thing. I'm at home know but tommorow i will tell you what plug they send with the kit.

As for pulling the turbo off. Well i think that the only area that i'm the expert i'm prtty shure i can do it with my eye closed. On and off bike five times know. Going to put it back on for a guy arround here hopping for some good results.

Thanks
Reply
Save
Like
carolina shaker
how much boost is it building have you checked the wast gate to see if it opening properly , if not it could cause compressor surge . I'm not familiar with that kit so its hard to Tell is there a web site i could look and see what the kit comes with and its set up
Reply
Save
Like
P
When i rev the bike slowly i can get 6psi . when i'm there i try to blip it fast to see if if i'm goign to generate more boost and it's the same. Took the bov apart everything seams fine ?

The kit is on two site's;

http://www.yakahosu.com/shop/product_info....products_id=237

and

http://store.albaaction.com/Merchant2/grap...OSU-TURBO-A.jpg

Thanks
Reply
Save
Like
carolina shaker
I'm talking about the wast-gate on the turbo not the bov
Reply
Save
Like
P
Sorry about that between cuting the grass and getting back at you i might of goton mixed up.

I only cheked the BOV. I did not know how to check the wast gate. The only thing i did was unscrewed the rod so it would boost less .I got less boost when i rev it slowly but the same end effect if i blip the throttle.

Is there a test that i can perform manualy because it's not mouted on the bike now.

I got a AFR wide band but i don't want to perce the exhaust to mount it. When I tried and insert it the back pipe about
6 inches in it tell's me where lean and if i throttle it there's a bit of black smoke. I'm guessing because it's to closed to the exit it's reading lean.

Anyways all the help is realy appreciated!

Tommorow after everything is intalled, going to post some pic to show what our options are.

Thanks
See less See more
Reply
Save
Like
P
Hey there guy's finaly got the beast working.

No more fuel map from the Co. ,no more regulator and not there injector.

After goigng on the dyno and chaging all of the above got the turbo working fine.

Boost at 13 psi wo 103.2 WHp & 85.3 WTq . We slamed arround 30 pass on the dyno.

Web Cam is making a Special grind for the turbo and brand new type of spring valves.

Thanks for all your help.

The only thing left is to call Kevin and get a Lock up
See less See more
Reply
Save
Like
1 - 20 of 29 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
ATV Drag Racer Forums
A forum community dedicated to ATV owners and drag race enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
General Topics New Member Introduction
Top