flexplates???

[MY6EATSV8'S]

does anyone know of a company to manufacture a stronger flexplate to go in front of my Bd transmission. Seems the stock ones will not hold to my power as it only lasted about 400 miles with my new motor. :--)

 

[BPINE]

You got to be kidding me not all ready? Yep I think they make one called a flywheel !!!!! LOL sorry to here it Adam.

 

[Jetpilot]

I heard about guys having this problem.....



Doug

 

[Bob Wagner]

Originally posted by Jetpilot

I heard about guys having this problem.....



Doug

Enjoy the area It could be worse

 

[Snow man]

I was looking for a HD flexplate myself,the stocker seems so thin. Is there any chance that flexplates and billet front covers are not compatible at REAL high hp? Did you brake it in #2 only?

 

[Paychk]

OK Boys, I'm gonna date myself, but here goes!



Back in the day when auto's were starting to try to live behind high HP engines the same thing would happen. The work around was to take another flex plate and cut the center bolt pattern out and use it for a doubler to a good flex plate and use Blanchard ground washers on the bolts.



May or may not work?

 

[DHRA]

Originally posted by Bob Wagner

Enjoy the area It could be worse

That's right he could be stuck in Seattle!



Adam,

I talked with CAT Power Engine Products at SEMA. Check out their sight www.catpep.com they have SFI rated flexplates. I haven't talked to them since, but they sounded like they could build us a better flexplate.

 

[csutton7]

good luck---I was discussing this a few months ago with DTT and at that time nothing could be done---billet covered TC's on trucks with HP break these things more often than we hear about--they're too heavy for the flexplate---anyway maybe the two suggestions here are worth a shot as far as I know nothing else is available----need to talk to one of the transmission builders to see if doubling up could be done---chris

 

[Devildog]

At about what HP/torque are they letting go... .

 

[csutton7]

D-dog--not sure there's any set rating--but with more HP you do more abusive things which in turn lends itself to flexplate breakage when the T/C has the billet cover which makes it heavier==more stress on the flexplate---chris

 

[CRoth - BD-Power]

Not so fast..

Originally posted by csutton7

D-dog--not sure there's any set rating--but with more HP you do more abusive things which in turn lends itself to flexplate breakage when the T/C has the billet cover which makes it heavier==more stress on the flexplate---chris

JetPilot just broke his.





It seems we all have the same problem.....

 

[csutton7]

yikes---well we know that Jetpilot has 700+ hp----and my6eatsv8's is way up there too--there are others out there with less--the heavier t/c breaks more of them, but none of us are immune----chris

 

[SlyBones]

Seems there was a recent NWBOMBer that lost a flexplate. 280HP and no fancy cover. Dont know any root cause, just yer right... . none of us are immune.

 

[MY6EATSV8'S]

well it seems like there is nothing for now, sounds like there are going to be some options in the next couple of months but for now no.

as far as the wieght thing, I don't believe that is what broke mine, it acctually twisted and broke. And yes this was with good ol #2 only. I dont' have the nos hooked up yet and no more lpg here.

I know that I probably broke it about 5 miles before it started rubbing on the adabptor because the tires broke loose going over the top of a crest at around 80-90mph and 95psi but taking off from the stoplight and maintaining 70psi and 1200 degrees it gave up. lol

oh well I guess I found the next week link. Whats next?

 

[Boldt's Wagon]

Some of the metal fabricators might answer this. Can you take a current design flex plate, use it as a pattern, and cut a new flex plate out of thicker stock using the new computer guided cutting equipment (milling, laser, plasma, water jet, ?)?

 

[JohnE]

Broken a few flexplates over the years. ALL were due to high rpm and high hp situations with stock (implied lightweight) converters.

I feel a dynamicaly balanced converter with a machined cover will be easier on the plate than any stamped steel stock converter.



Flex plates are thinner than flywheels for a number of design rationals which inlcude:.

No heat to dissipate so less mass needed

No axial loading from a pressure plate so less thickness required.



Boldt's Wagon;

Maybe the answer is machining a flywheel into a flexplate?