H2B Shifting Problems
ok. how about we make a thread where all evo h2b guys vote on the brand clutch they have. does that sound good? here i'll go start it anyways.
edit heres the link
https://honda-tech.com/forums/drag-racing-36/evolution-h2b-owners-come-2444332/
edit heres the link
https://honda-tech.com/forums/drag-racing-36/evolution-h2b-owners-come-2444332/
So it sounds like the cure to this whole fiasco is to resurface the flywheel friction ring down to a specified thickness that the clutch manufacturer recommends for their particular clutch. Would it be safe to suggest that Evolution machine the mating surface another .010 deeper than whats called for on the drawing??
This is crazy! I do not use garbage in my cars, and the EVO kits are flawless. It is amazing how certain individuals want to blame a straight forward kit for issues that have pointed to installation and added hardware problems.
Evolution did a great job with the update to the kits, compensating for aging slave/master cylinders.
With almost 1000 kits sold worldwide, with great success, I believe in their technology.
Based on some of the responses on this thread, I guess if I have a car where 6 different tires work well on them, and I have 1 tire set that causes me problems...I should throw away my car!
Evolution did a great job with the update to the kits, compensating for aging slave/master cylinders.
With almost 1000 kits sold worldwide, with great success, I believe in their technology.
Based on some of the responses on this thread, I guess if I have a car where 6 different tires work well on them, and I have 1 tire set that causes me problems...I should throw away my car!
Last edited by Bisimoto; Dec 4, 2008 at 06:30 AM. Reason: more info
This is crazy! I do not use garbage in my cars, and the EVO kits are flawless. It is amazing how certain individuals want to blame a straight forward kit for issues that have pointed to installation and added hardware problems.
Evolution did a great job with the update to the kits, compensating for aging slave/master cylinders.
With almost 1000 kits sold worldwide, with great success, I believe in their technology.
Based on some of the responses on this thread, I guess if I have a car where 6 different tires work well on them, and I have 1 tire set that causes me problems...I should throw away my car!
Evolution did a great job with the update to the kits, compensating for aging slave/master cylinders.
With almost 1000 kits sold worldwide, with great success, I believe in their technology.
Based on some of the responses on this thread, I guess if I have a car where 6 different tires work well on them, and I have 1 tire set that causes me problems...I should throw away my car!
ok here is what i think is happening, as we can tell from all the pictures where the original kit the slave cyl rod looks like its overusing itself and pushing on a angel. I think whats happening here is the slave cyls are going bad from all the stress therefore causing the selector to jam up and break because the gears arnt going in smooth since the clutch is not working all the way
I'm starting to get flashbacks from my phone conversations with EVO 5 months ago . . .
"Our kits are flawless, we have them in tons of cars making more HP then yours and they work fine "
Sounds like their customer service CD is stuck on REPEAT . . .
People are looking for a solution, not looking to be told they are incompetant because the kit in a race car built by a professional works flawlessly.
"Our kits are flawless, we have them in tons of cars making more HP then yours and they work fine "
Sounds like their customer service CD is stuck on REPEAT . . .
People are looking for a solution, not looking to be told they are incompetant because the kit in a race car built by a professional works flawlessly.
I'm starting to get flashbacks from my phone conversations with EVO 5 months ago . . .
"Our kits are flawless, we have them in tons of cars making more HP then yours and they work fine "
Sounds like their customer service CD is stuck on REPEAT . . .
People are looking for a solution, not looking to be told they are incompetant because the kit in a race car built by a professional works flawlessly.
"Our kits are flawless, we have them in tons of cars making more HP then yours and they work fine "
Sounds like their customer service CD is stuck on REPEAT . . .
People are looking for a solution, not looking to be told they are incompetant because the kit in a race car built by a professional works flawlessly.
This is crazy! I do not use garbage in my cars, and the EVO kits are flawless. It is amazing how certain individuals want to blame a straight forward kit for issues that have pointed to installation and added hardware problems.
Evolution did a great job with the update to the kits, compensating for aging slave/master cylinders.
With almost 1000 kits sold worldwide, with great success, I believe in their technology.
Based on some of the responses on this thread, I guess if I have a car where 6 different tires work well on them, and I have 1 tire set that causes me problems...I should throw away my car!
Evolution did a great job with the update to the kits, compensating for aging slave/master cylinders.
With almost 1000 kits sold worldwide, with great success, I believe in their technology.
Based on some of the responses on this thread, I guess if I have a car where 6 different tires work well on them, and I have 1 tire set that causes me problems...I should throw away my car!
please dont take my comments the wrong way. its just my personal take on what is happening here. i am not doubting evos capability in making a "flawless product" but what makes it flawless?
there are so many things that can be out of evo control to make a flawless product or things that been machined to .00010 tolerances can go schew when thinking everything is perfect all the time. i have been around cnc programmers and machines for some time, and i see things go wrong here and there. not something that happens all the time but does happen.
revisions to a product, is not flawless. so i think that was the wrong word here. evo kits are great. and many in which have had great sucess with. but the others, like my good friend jake was not so lucky. install are installs, this is no different, and he is more then qualified to do the job. i can vouch for that.
there are many ways in which companies can blame the cumstomer and vise versa. but in the end, great customer service always tries to take care of the situation and makes the customer happy.
edit: take this to pm s
Last edited by MrParks; Dec 4, 2008 at 11:54 AM.
Well let me state the obvious.....
We all know now that clutch manufacturers have different tolerances on their pressure plates and it will be unlikely we can convince ALL the manufacturers to call out a tighter tolerance on their pressure plates. We also know that having too much of a "step" between the flywheel and the friction ring will cause a over-centering problem.
There are a few probable causes to everyone's shifting concerns....
1. The friction plate is too thick
2. The mating surface for the friction plate is not machined deep enough
The question should be.... What would be the maximum "step" height of the friction ring need to be, in relation to the mating surface of the flywheel in order to accommodate the various clutch manufacturers variance in pressure plate tolerances? Measuring an OEM spec flywheel should tell you the answer to that as those seem to have the least amount of concerns in regards to shifting with any given clutch.
We all know now that clutch manufacturers have different tolerances on their pressure plates and it will be unlikely we can convince ALL the manufacturers to call out a tighter tolerance on their pressure plates. We also know that having too much of a "step" between the flywheel and the friction ring will cause a over-centering problem.
There are a few probable causes to everyone's shifting concerns....
1. The friction plate is too thick
2. The mating surface for the friction plate is not machined deep enough
The question should be.... What would be the maximum "step" height of the friction ring need to be, in relation to the mating surface of the flywheel in order to accommodate the various clutch manufacturers variance in pressure plate tolerances? Measuring an OEM spec flywheel should tell you the answer to that as those seem to have the least amount of concerns in regards to shifting with any given clutch.
Well let me state the obvious.....
We all know now that clutch manufacturers have different tolerances on their pressure plates and it will be unlikely we can convince ALL the manufacturers to call out a tighter tolerance on their pressure plates. We also know that having too much of a "step" between the flywheel and the friction ring will cause a over-centering problem.
There are a few probable causes to everyone's shifting concerns....
1. The friction plate is too thick
2. The mating surface for the friction plate is not machined deep enough
The question should be.... What would be the maximum "step" height of the friction ring need to be, in relation to the mating surface of the flywheel in order to accommodate the various clutch manufacturers variance in pressure plate tolerances? Measuring an OEM spec flywheel should tell you the answer to that as those seem to have the least amount of concerns in regards to shifting with any given clutch.
We all know now that clutch manufacturers have different tolerances on their pressure plates and it will be unlikely we can convince ALL the manufacturers to call out a tighter tolerance on their pressure plates. We also know that having too much of a "step" between the flywheel and the friction ring will cause a over-centering problem.
There are a few probable causes to everyone's shifting concerns....
1. The friction plate is too thick
2. The mating surface for the friction plate is not machined deep enough
The question should be.... What would be the maximum "step" height of the friction ring need to be, in relation to the mating surface of the flywheel in order to accommodate the various clutch manufacturers variance in pressure plate tolerances? Measuring an OEM spec flywheel should tell you the answer to that as those seem to have the least amount of concerns in regards to shifting with any given clutch.

if nobody gets around to it first, i will check my good working evo flywheel against my oem b series flywheel next week. i will take pics and post my findings. but obviously we will still need a non-working evo flywheel to compare also to make sure the flywheels are coming off the mill identical.
This is crazy! I do not use garbage in my cars, and the EVO kits are flawless. It is amazing how certain individuals want to blame a straight forward kit for issues that have pointed to installation and added hardware problems.
Evolution did a great job with the update to the kits, compensating for aging slave/master cylinders.
With almost 1000 kits sold worldwide, with great success, I believe in their technology.
Based on some of the responses on this thread, I guess if I have a car where 6 different tires work well on them, and I have 1 tire set that causes me problems...I should throw away my car!
Evolution did a great job with the update to the kits, compensating for aging slave/master cylinders.
With almost 1000 kits sold worldwide, with great success, I believe in their technology.
Based on some of the responses on this thread, I guess if I have a car where 6 different tires work well on them, and I have 1 tire set that causes me problems...I should throw away my car!
OK im going to send my clutch/flywheel setup to action clutch and see if there are any differences in there clutch kit and my competition one. The kit was designed around that clutch company so i will know if its the clutches or not causing this problem. Im pulling the tranny tomorrow so hopefully i will know something by the end of the week
OK im going to send my clutch/flywheel setup to action clutch and see if there are any differences in there clutch kit and my competition one. The kit was designed around that clutch company so i will know if its the clutches or not causing this problem. Im pulling the tranny tomorrow so hopefully i will know something by the end of the week
good luck man. lets get this issue resolved. I love and enjoy my h2b kit and i hope you get to soon too
Come on people lets face some facts here..... This is a simple machine we are dealing with here....a lever and fulcrum.... I seriously doubt the flywheel is the problem
I would look at the lever/fulcrum combo... A relatively unknown brand of clutch.
I know the Evo team use the Action clutch... Personally I know nothing about them and therefore, wouldnt use them. Bully, XTD, and other "discount" companies should be avoided in choosing a quality clutch.
I have run ACT (again my better judgement), SPEC, CC, Clutchmasters, and Exedy.
In all cases (B2B, H2H, and H2B) I have found the Exedy clutch perform the best...
Just because it says it a stage 5 doesnt make the quality any better... As someone stated above, the Exedy stage 2 ( 3 puck) took alot of abuse. A ****ING STAGE 2!!!!
Going back the to the lever/fulcrum argument....if the TO Bearing is incorrect (or incorrectly installed as it has been proven possible), then the fulcrum (pivot point) is probably out of whack.
But in the end it is your money, your time, and your car....
Sheet metal intakes and ebay headers and cheap unknown brands of clutches.....
Maybe the QSD kit is for you! :LOL:
I would look at the lever/fulcrum combo... A relatively unknown brand of clutch.
I know the Evo team use the Action clutch... Personally I know nothing about them and therefore, wouldnt use them. Bully, XTD, and other "discount" companies should be avoided in choosing a quality clutch.
I have run ACT (again my better judgement), SPEC, CC, Clutchmasters, and Exedy.
In all cases (B2B, H2H, and H2B) I have found the Exedy clutch perform the best...
Just because it says it a stage 5 doesnt make the quality any better... As someone stated above, the Exedy stage 2 ( 3 puck) took alot of abuse. A ****ING STAGE 2!!!!
Going back the to the lever/fulcrum argument....if the TO Bearing is incorrect (or incorrectly installed as it has been proven possible), then the fulcrum (pivot point) is probably out of whack.
But in the end it is your money, your time, and your car....
Sheet metal intakes and ebay headers and cheap unknown brands of clutches.....
Maybe the QSD kit is for you! :LOL:
On a different note....I have been running the EVO Industries H2B kit for over 11 months...DD, Drag, Street Racing, Mountain Racing, Light offroading.......I have yet to have 1 issue with anything that EVO has provided.
I got a big suggestion.....DITCH THE HYDROLICS!!!!!!
Im running mine in DA Integra...Hydro trans with a Hasport Cable to Hydro conversion....
Forget extended forks and slave adaptors.... I hand built my trans in July of 07.... Still on the same Trans oil from then (recycled it during the H2B swap!!).
Evolutions Industries
~ For The Motha Faqin Win~
I got a big suggestion.....DITCH THE HYDROLICS!!!!!!
Im running mine in DA Integra...Hydro trans with a Hasport Cable to Hydro conversion....
Forget extended forks and slave adaptors.... I hand built my trans in July of 07.... Still on the same Trans oil from then (recycled it during the H2B swap!!).
Evolutions Industries
~ For The Motha Faqin Win~










