Might have found a sfi approved flexplate
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Tire Smoking Tranny Blowing Director
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From: Barto PA
http://www.tciauto.com/flywheels.htm. Dont know what bolt pattern or internal or external balance we need though <img border="0" title="" alt="[Sad]" src="gr_sad.gif" /> . Will add more webpages if I find anymore but if this has a flexplate thats approved I wont look anymore lol.
Thread Starter
Tire Smoking Tranny Blowing Director
iTrader: (2)
Joined: Nov 2001
Posts: 2,130
Likes: 1
From: Barto PA
The ones on TCI's page are just run of the mill SBC/BBC flaxplates. Nothing for an LS1.
I couldn't find a single flexplate at all on ATI's page...
I couldn't find a single flexplate at all on ATI's page...
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by JS:
<strong>Ati has had one for about a month now.
I might get it too
JS</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I've been working pretty closely with ATI on an SFI flexplate and I don't think it out yet. Where did you see this? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
Paul
<strong>Ati has had one for about a month now.
I might get it too
JS</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I've been working pretty closely with ATI on an SFI flexplate and I don't think it out yet. Where did you see this? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
Paul
I saw the prototype last month George.
I work a couple hrs from ATI and sell there products.
Its gonna be at PRI,just relax guys...
JS
I work a couple hrs from ATI and sell there products.
Its gonna be at PRI,just relax guys...
JS
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Well I just spoke to Art and Jim at ATI and both are telling me there is NO prototype out yet nor at this time will there be anything at PRI. The only thing they have at this time is on paper. JS who is your contact at ATI I would be very interested in talking to them. Seems you've seen it in person and ATI is claiming it doesn't exist. We are talking about a flexplate here not the Stealth Fighter. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> Please let me know who you talked to over there.
Paul
Paul
Just because they say they dont have it doesnt mean they dont have it <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
News to me,They told me it would be at PRI?In defense of myself,I was picking up 2 trannies for customers and they showed my a SFI that was SUPPOSED to be for an LS1?
No doubt I didnt inquire too much after that.
Maybe they hood winked me?
JS
<small>[ November 22, 2002, 10:34 AM: Message edited by: JS ]</small>
News to me,They told me it would be at PRI?In defense of myself,I was picking up 2 trannies for customers and they showed my a SFI that was SUPPOSED to be for an LS1?
No doubt I didnt inquire too much after that.
Maybe they hood winked me?
JS
<small>[ November 22, 2002, 10:34 AM: Message edited by: JS ]</small>
Paul,Sorry buddy...
I got the WRONG INFO from some asspipe at ATI <img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" />
Like u said,there still working on it..
JS
Gullable to the core <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
I got the WRONG INFO from some asspipe at ATI <img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" />
Like u said,there still working on it..
JS
Gullable to the core <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
I don't understand what's so difficult about getting this thing into production. The bolt pattern (on the crank) is the same as a late one-piece rear main SBC, and the diameter is the same old standard 168-tooth, AFAIK. The only difference is the depth from the flange (that mounts to the crank) to the converter mounting area. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by GeorgeC:
<strong> The only difference is the depth from the flange (that mounts to the crank) to the converter mounting area. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">You hit the nail on the head George. There is some issue with the flange and the manufacturing process or SFI approval. They are working it several different ways, one of them being just to have a flat flexplate and an adaptor ring. I hope soon cause I want one as bad as you do. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />
Paul
<strong> The only difference is the depth from the flange (that mounts to the crank) to the converter mounting area. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">You hit the nail on the head George. There is some issue with the flange and the manufacturing process or SFI approval. They are working it several different ways, one of them being just to have a flat flexplate and an adaptor ring. I hope soon cause I want one as bad as you do. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />
Paul
Do you guys know for sure that the bolt pattern is the same as the one peice rear seal Gen I? I've seen heard rumours saying both yes and no :-/
Does someone know for sure what the LS1 bolt pattern really is?
Which direction is the depth difference? In toward the engine, or out toward the tranny?
I've heard (again I haven't been able to actually measure it) that it is .400. Does anyone know if that number is correct?
As far as flexplates, if everythings that same except for the depth, and you're running a 4L60E, which is supposed to bolt up to the back of an LS1, I don't see why a standard flexplate doesn't work. The depth issue should be resolved by the tranny I would think <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
Does someone know for sure what the LS1 bolt pattern really is?
Which direction is the depth difference? In toward the engine, or out toward the tranny?
I've heard (again I haven't been able to actually measure it) that it is .400. Does anyone know if that number is correct?
As far as flexplates, if everythings that same except for the depth, and you're running a 4L60E, which is supposed to bolt up to the back of an LS1, I don't see why a standard flexplate doesn't work. The depth issue should be resolved by the tranny I would think <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
The bolt circle on the LS1 is 3.112". The late model GM flexplate ('86 up) was 3.000". If there is enough interest I'll be glad to check on building an SFI version.
Kevin
Kevin






