Because not everyone it happens to, decideds to post it online.

It happened 3 times 5o the same car within two days at the track
[/quote]

Was the same torque wrench always used? Might it be inaccurate?
[/quote]

I believe the torque spec for a m6 bolt is 7 lb pounds per the honda manual. I can honestly say I never use a torque wrench for M6 bolts, except when it is internal to the engine.

The bolts were at the very least 7 lb pounds, I thought that would be inadequate so we overtightened them. The bolts broke at the track. So we had to drill and tap them out. Then we got the same hardness bolts at Home depot. Again we tightened them by hand and the next session they came loose. Then we loctited the bolts a small amount.

I believe the engine vibration loosens the bolts, then they snap in half. Joe just received 12.9 bolts and we are planning to have them drilled for safety wire. However, I did find this site for Ti bolts. It might come in handy for other people. This link is for the correct length, with holes drilled for safety wire.

http://www.racebolts...products_id=687

As far as the walbro 450 pump. On the SOS site they say you cannot run it with a 06-09 hanger, it must be a 00-05 hanger.

 

Those are some pretty fancy bolts.

I think the ones I just received will work for now with safety wire. Something will need to be done down the road to make this portion of the kit more reliable.

Also when the car is used on the track alot more stress is put on everything. I would have to say that maybe some of the issues might not show up for a long time if the car is used only on the street.

After the car was finished it received a few hours of dyno tuning, and about 2 tanks of gas that were used fairly hard with no issues. When it came to using the car on track it made the first session with no problems. I wasn't pushing the car at all since everything was new and we wanted to make sure everything was OK. The problems happened during the third session after it was being used much harder. I think its a design flaw with how they are holding the blower bracket. They should have used at the minimum one more spot on the head that has a larger bolt so that its not relying on three small bolts to hold all the weight and stress of the system.

 

I do appreciate your thoroughness with your questions. It needs to done when trying to solve a problem. As brian said, I'm not always very kind with my responces. I take car modifying very seriously, so I apologize if things are taken the wrong way.

I honestly am not sure if going softer or harder with the bolts will solve this particular issue. Ti bolts may have worked for vortec kits, but the vibrations are different as well as brackets. The main thing is a bracket that is very small for its intended purpose.

If time plays in my favor, I'd like to spend some time redesigning the bracket with my fabricator. So far time hasn't played well, so I fear with will stick with the safety wired bolts for now.

 

I do appreciate your thoroughness with your questions. It needs to done when trying to solve a problem. As brian said, I'm not always very kind with my responces. I take car modifying very seriously, so I apologize if things are taken the wrong way.

I honestly am not sure if going softer or harder with the bolts will solve this particular issue. Ti bolts may have worked for vortec kits, but the vibrations are different as well as brackets. The main thing is a bracket that is very small for its intended purpose.

If time plays in my favor, I'd like to spend some time redesigning the bracket with my fabricator. So far time hasn't played well, so I fear with will stick with the safety wired bolts for now.
[/quote]

If you make a new bracket you would have a bunch of people here interested!

 

Per the installer, the belt was tightened to have about 45 degrees of deflection. From reading on here and I think Habit said this before in his thread, that's the amount of deflection that should be used.

 

I do appreciate your thoroughness with your questions. It needs to done when trying to solve a problem. As brian said, I'm not always very kind with my responces. I take car modifying very seriously, so I apologize if things are taken the wrong way.

I honestly am not sure if going softer or harder with the bolts will solve this particular issue. Ti bolts may have worked for vortec kits, but the vibrations are different as well as brackets. The main thing is a bracket that is very small for its intended purpose.

If time plays in my favor, I'd like to spend some time redesigning the bracket with my fabricator. So far time hasn't played well, so I fear with will stick with the safety wired bolts for now.
[/quote]

It's all good man. I'm not here to carry water for KW or to bash them (or anyone else on the forum). I just enjoy the troubleshooting & problem solving. On that particular part I'm very inclined to use a torque wrench though, as you're balancing pressure between 3 points on two separate o-rings. FWIW the manual's torque spec is 8.7ft-lb on the vtec solenoid bolts. I used 10 as that's as low as my wrench goes. It may not be very accurate at the bottom of the scale, but it should at least be consistent.


I do appreciate your thoroughness with your questions. It needs to done when trying to solve a problem. As brian said, I'm not always very kind with my responces. I take car modifying very seriously, so I apologize if things are taken the wrong way.

I honestly am not sure if going softer or harder with the bolts will solve this particular issue. Ti bolts may have worked for vortec kits, but the vibrations are different as well as brackets. The main thing is a bracket that is very small for its intended purpose.

If time plays in my favor, I'd like to spend some time redesigning the bracket with my fabricator. So far time hasn't played well, so I fear with will stick with the safety wired bolts for now.
[/quote]

If you make a new bracket you would have a bunch of people here interested!
[/quote]

 

LHT in Tampa has installed 16 of this kits...i am curious if they have had any of the issues we have all read about...

 

It was available and the original bolts were junk. It would be better to used hardened steel.

The Vortech bracket included the bolt aft of the v-tec solenoid that give a lot of stability.

[attachment=83470:IMG_0997.jpg]

Anyone redesigning this piece might look at the support points of the Vortech bracket.

 

I think kraftwerks should get to work on some revisions and start sending out updated parts so we can actually drive our cars with some confidence .. And even if 2 people had the solenoid bolts come out they should be sending us all wired bolts on the house .. Because no matter how hard you drive on the streets it don't compare to a 30 min session or more on a high speed track .. Bottom line I don't care what they say at kraftwerks this kit was not tested well enough .. Do you think they put one on a car and hit rev limiter over and over to see if the belt would snap or bolt would break? I doubt it .. I wanna hear kraftwerks say that they are trying to find the problems .. Not that " we have sold 80 kits and only a couple are having problems " bet you only those couple track their cars ...

 

I was thinking the EXACT same thing lol