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+--- Thread: K8 TRE (/showthread.php?tid=10421)
K8 TRE - simmo - 13-08-2008
Any one fitted a TRE on a 08 yet
If so how is it going & do you know if its richening up the air fuel ratio on the lower gears?
RE: K8 TRE - MarkOz - 14-08-2008
simmo Wrote:Any one fitted a TRE on a 08 yet
If so how is it going & do you know if its richening up the air fuel ratio on the lower gears?
I read about Ivans TRE and bought the 007 model that suits the busa 08, to see if there claims were true about better throttling in the lower gears. Very easy to install and gear indicator shows 5-N-5-5-5-5-5, But better performance in lower gears it aint. I reakon somewhere between map A and b, so I was dissapointed with the performance and should have taken Brocks advice, as he says it consistantly times slower in the q-mile than stock.
I was led to believe the TRE affected the timing rather than the fuel mixture.
When I get time, I`me gunna dismantle this TRE, to check the claims its just not resistors but chipped.(very skeptical) Am looking to modify it to allow gears 1 thru 5. Probably use zenner diode.
RE: K8 TRE - GRUNTMAX - 16-08-2008
I had a 2008 one from Schnitz on my 2008, the only gear it does not read on the dash is 6th. From what I understand the TRE removes the 185mph limit that the japs have programed into 6th gear.
I removed it in the end. What is the point of having it. After all, if you do over 185 mph on the road you won't live too long.
They are for the drag strip.
RE: K8 TRE - VNSVLE - 16-08-2008
Not only does it remove the speed limiter but it also removes the timing retardation in the first couple of gears(Thus the name Timing Retard Eliminator or TRE) from what I understand, giving you all power from the get go.
RE: K8 TRE - MarkOz - 16-08-2008
VNSVLE Wrote:Not only does it remove the speed limiter but it also removes the timing retardation in the first couple of gears(Thus the name Timing Retard Eliminator or TRE) from what I understand, giving you all power from the get go.
This is only applicable to pre 2008 models eg: upto 2007. The tre on the 08 makes the bike less snatchy in the lower gears cause its producing less power.
RE: K8 TRE - VNSVLE - 16-08-2008
I see. Well there you go. Thanks for clarifying MarkOz
RE: K8 TRE - ohdear - 17-08-2008
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RE: K8 TRE - simmo - 17-08-2008
Well this is the one I have ordered there is only one way to find out
Ivan's Performance Products SMART Timing Retarder Eliminator and Speed Limiter Overide! The TRE is a device which allows much better throttle response in the first 4 gears. The "Smart TRE" has a built-in computer chip, is slightly larger than the orignial TRE, and requires no adjustments to idle speed or fuel mixture to maintain smooth idle quality!
2008 Hayabusa
What the manufacturer has done is to make a SEPARATE IGNITION MAP FOR EACH GEAR. This has been done for either safety and/or emissions reasons. However, it limits the power and smoothness of your bike in the first 1/2 turn of the throttle in gears 1 through 4.
The smart TRE will disable the speed limiter on the bike. This is due to the fact that the ECM does not see the 6th gear ignition map, which has an earlier rev-limiter.
The TRE is a direct "plug in" installation to your bike - no cutting or splicing The TRE has no effect at full throttle The TRE does have an effect at throttle openings up to 1/2 in gears 1 through 4 at ANY rpm. The TRE does NOT affect full throttle power. This has been verified on the dyno as well as on the road under controlled conditions. The TRE has also been tested by Sport Rider Magazine, with rave reviews. The TRE is for "race use only". The TRE does not comply with your warranty. The TRE does not comply with federal emission and/or safety laws.
They were clever in the design of this timing retarder. It still allows full timing at full throttle. As you shift up through the gears, the amount of throttle needed to access the advance curve decreases, until you make it into 5th gear and then it's gone. You have nice, smooth operation. Wouldn't you like your bike to respond just as smoothly in the lower gears? Installs in Minutes!
Comes with easy to follow instructions!!! With the TRE installed, the factory gear indicator will show 5th gear when the bike is in gear!
RE: K8 TRE - MarkOz - 17-08-2008
simmo Wrote:Well this is the one I have ordered there is only one way to find out
Ivan's Performance Products SMART Timing Retarder Eliminator and Speed Limiter Overide! The TRE is a device which allows much better throttle response in the first 4 gears. The "Smart TRE" has a built-in computer chip, is slightly larger than the orignial TRE, and requires no adjustments to idle speed or fuel mixture to maintain smooth idle quality!
2008 Hayabusa
What the manufacturer has done is to make a SEPARATE IGNITION MAP FOR EACH GEAR. This has been done for either safety and/or emissions reasons. However, it limits the power and smoothness of your bike in the first 1/2 turn of the throttle in gears 1 through 4.
The smart TRE will disable the speed limiter on the bike. This is due to the fact that the ECM does not see the 6th gear ignition map, which has an earlier rev-limiter.
The TRE is a direct "plug in" installation to your bike - no cutting or splicing The TRE has no effect at full throttle The TRE does have an effect at throttle openings up to 1/2 in gears 1 through 4 at ANY rpm. The TRE does NOT affect full throttle power. This has been verified on the dyno as well as on the road under controlled conditions. The TRE has also been tested by Sport Rider Magazine, with rave reviews. The TRE is for "race use only". The TRE does not comply with your warranty. The TRE does not comply with federal emission and/or safety laws.
They were clever in the design of this timing retarder. It still allows full timing at full throttle. As you shift up through the gears, the amount of throttle needed to access the advance curve decreases, until you make it into 5th gear and then it's gone. You have nice, smooth operation. Wouldn't you like your bike to respond just as smoothly in the lower gears? Installs in Minutes!
Comes with easy to follow instructions!!! With the TRE installed, the factory gear indicator will show 5th gear when the bike is in gear!
Check out what Brock has to say about TRE`s, he mentions it in the fifth paragraph down on this link on how to slam a busa: http://www.brocksperformance.com/forum/display_topic_threads.asp?ForumID=4&TopicID=4&PagePosition=1
RE: K8 TRE - busakid08 - 18-08-2008
Ivans are the best I rekon been using his for years never an issue - yep shows 5th in all gears cept nuetral - if you have never had a gear indicator like me it wont bother you. Does smooth out the bike a little but I dont think you get any more pwer from it. I will be taking mine off soon though as my Motty has TSd overide anyway
RE: K8 TRE - simmo - 13-11-2008
I tried out the Ivans TRE last night at the drags last night, at the drags I can't say it may any difference, from what I sort off understand on the K8 once at 100 % throttle the ecu may advance the timing anyway,
But what I did find was that when tuning the hub that runs off a PC3 all the gear trims were adjusted in neutral not 5th gear?, and when I adjusted neutral map the setting followed throw for all the gears the same.
RE: K8 TRE - greenb5 - 13-11-2008
MarkOz Wrote:VNSVLE Wrote:Not only does it remove the speed limiter but it also removes the timing retardation in the first couple of gears(Thus the name Timing Retard Eliminator or TRE) from what I understand, giving you all power from the get go.
This is only applicable to pre 2008 models eg: upto 2007. The tre on the 08 makes the bike less snatchy in the lower gears cause its producing less power.
From what I've read the above is true - removes the limiter but can adversely effect performance on '08s. Simmo, I think you are correct that you wouldn't notice any difference at WOT, but how's the bike ride around town with the TRE? Any difference at low revs?
RE: K8 TRE - GRUNTMAX - 13-11-2008
Stop press. Just got a new one from Schnitz & it reads all six & thats not all
RE: K8 TRE - simmo - 14-11-2008
GRUNTMAX Wrote:Stop press. Just got a new one from Schnitz & it reads all six & thats not all
Tell me more,
I'll be trying my tre tonight again all going well with taller gearing to see if it makes any differance
RE: K8 TRE - GRUNTMAX - 17-11-2008
simmo Wrote:www.schnitzracingstore.com/catalogs/catalog.asp?prodid=5100418&showprevnext=1GRUNTMAX Wrote:Stop press. Just got a new one from Schnitz & it reads all six & thats not all
Tell me more,
I'll be trying my tre tonight again all going well with taller gearing to see if it makes any differance
Just go www.schnitzracing.com