Pettit's 3-Rotor

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Old Jul 24, 2002 | 03:52 PM
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Ted, I guess you'd have to see the installation in person. Pettit has an aluminum shop in-house and the installation uses a small army of custom pieces to make everything fit just right. The point was that much engineering and thought has gone into the installation (as is) that the installation looks very clean and professional. Definitely not a hack job. Very few wires, very few vacuum hoses and just a nice overall package.

With that said, I don't think I'd take a Banzai "as is". Two major things I would change is engine position and the turbos used. A ride with Cam around a racetrack may change that point of view, but hey, it's just my opion and I'm sticking to it :-)

On a side note, I'm going to post some pics of the Stillway 3 rotor engine bay, Axia engine bay, and the Pettit engine bay in a new post.
Michel
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Old Jul 25, 2002 | 12:47 PM
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Well after reading about finding a gearbox for a 9 second car in the Rotary Performance section, the name G-Force came up and to me, this seems to be the most logical and cost-effective option (counting the need to rebuild a lesser box).
www.g-forcetransmissions.com
With the vertical gate shifter, it's essentially a sequential dog box. It also appears that the case is very short and uses adapters to position the shifter in the correct location (another plus). For $200 extra, you can even get a magnesium case saving 10lbs. The only thing I haven't seen is a torque rating for this box. I have no idea WHY I didn't think about the G-Force boxes sooner. Brain fart I guess... :-) One problem with this box is the need to convert to a GM spline count which will negate any off the shelf clutch parts.
Michel
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Old Jul 25, 2002 | 06:46 PM
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hmm

clutchless shift
sequential
magnesium(i have a crotchrocket i know all about this stuff)
able to handle alot of power

where was reverse?
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Old Jul 25, 2002 | 10:05 PM
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Ya just had to throw a wrench in there didn't ya! :-) I'd hate to have to push the car out of a parking spot every time I drove it to the local ice cream joint!
Michel
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Old Jul 25, 2002 | 10:07 PM
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Just looked, they do have reverse. Look at the ratios chart.
Michel
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Old Jul 25, 2002 | 10:24 PM
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Originally posted by rx7tt95
I have no idea WHY I didn't think about the G-Force boxes sooner. Brain fart I guess... :-)

Edit - Evil being stupid, going through posts too fast and not reading them through, and responding totally incorrectly with another product in mind. Sorry about that. Post is gone, appologies to G-Force, and I'll shut up now (until my next blunder, LOL).

Last edited by Evil Aviator; Jul 26, 2002 at 08:29 PM.
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Old Jul 26, 2002 | 12:08 AM
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hey rx7tt u get my pm?i have a monstrous idea for 20b plans.
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Old Jul 26, 2002 | 12:22 AM
  #33  
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Uh oh, I hope it's not my idea!
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Old Jul 26, 2002 | 12:57 AM
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kraft dinner wanna talk about it?
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Old Jul 26, 2002 | 04:19 PM
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Yes, got your pm :-) Work is a bit busy right now unfortunately.

Evil, Didn't Adam use a G-Force in his car as did RP? I think they've been around for a few years at best, no? So you are of the opinion that the case itself is the weak link with their transmission? Which other transmission uses this case?
Michel
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Old Jul 26, 2002 | 04:32 PM
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hey tt there was a thread about gforce and they did a 9 sec pass in itwith no probs
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Old Jul 26, 2002 | 08:19 PM
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Yeah that's where I came across it. They also mentioned the Tremec but I used to run one of those in dare I say, a rustang I used to have. Not exactly the smoothest shifting box, LOL. I'd rather go with a dog box. Looked at the Jerico's too (thanks Evil) although it's unclear whether or not they have reverse.
Michel
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Old Jul 26, 2002 | 08:31 PM
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Originally posted by rx7tt95
Yes, got your pm :-) Work is a bit busy right now unfortunately.

Evil, Didn't Adam use a G-Force in his car as did RP? I think they've been around for a few years at best, no? So you are of the opinion that the case itself is the weak link with their transmission? Which other transmission uses this case?
Michel
Thanks, I fixed the post. Sorry for the confusion.
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Old Jul 26, 2002 | 09:45 PM
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hey tt im gonna put my money on this gforce.the options sound to good to pass up.
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Old Jul 27, 2002 | 09:34 PM
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I actually had a catalog for G-Force sitting right next to my desk under a pile of JDM magazines, sigh..just saw the corner of it sticking out. Here's what the catalog says about power handling...1300hp at speeds exceeding 14,000rpm! *****.

They also mention their shifter for the Richmond 6-speed so I took a wee visit to http://www.richmondgear.com/ to see what they had. They have a PDF format catalog (You'll need Adobe Acrobat which is a free download).

Essentially it's a 6-speed box with 6th being an overdriven gear. Perfect. You could opt for a 1:1 5th which would be killer on the highway. The box weighs a bit more coming in at 108lbs. The case is aluminum using a side lever shifter. Looks a bit bulkier than the G-Force. Has a bunch of OEM fitments though, Vette, Fort T-5, Mopar, etc... It's an H pattern box that includes shifter, back up light switch and wire harness. They also have a synchro road race 5 speed which is about 10lbs. lighter. All have reverse. The catalog doesn't mention torque/hp capacities, but I'd imagine they'd be more than adequate. :-)
Michel
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Old Jul 27, 2002 | 09:37 PM
  #41  
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there is someone who makes a 74up rotary to a t5 adaptor. i dunno who though, mine's not that fast

mike
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Old Jul 28, 2002 | 03:31 PM
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Does anyone have the length of the stock transmission sans bellhousing and the length of the bellhousing? If not, I'll wait til I have the car on the lift again. I'll also have to figure out the distance from the rear of the motor to the shifter just to see which of these options are the most viable (all else being equal).
Michel
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Old Jul 28, 2002 | 06:35 PM
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hey tt there was a thread where it showed the t56 and rx7 5 speed next to each other it is about 5-6 inches longer than the t56.but like i said
gforce....mmmmmmmmm
clutchless upshift
14k rpms
1200hp
sequential shifting
too good too good
but hey tt when i do the 3 rotor transplant ive got alot of tricks up my sleeve.big secret cant tell.this will be my moneymaker.but im ripping all wiring and heating ducts and a/c **** out.im just gonna redo all wiring with painless.custom dash.its basically gonna look like a re amemiya car inside.

but here is my question?what are those plastic bottle things covered with warmers where the master brake cylinder is supposed to be?
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Old Jul 28, 2002 | 10:30 PM
  #44  
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good question. I'll try and figure it out. Chances are, they're fluid resovoirs for the brake system.

I'll give you a call in the not too distant future about the three rotor thing. I plan on keeping the heating and a/c systems. I would like to go with a Pi, Motec or other digital dash as long as it'll interface with the computer I'm using (Microtech more than likely). The only big question for me is turbo manifold fabrication and intake fabrication. I plan on doing something crazy with the radiator (curved anyone?) and a new think on the IC system and layout. :-) Maybe we should move our discussions to PM or email, LOL.
Michel
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Old Jul 28, 2002 | 11:36 PM
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well like i said to secret to talk about on computer.it will take me a few yrs to do and over 100k probably.my goal is 2000lbs 900-1000hp.ive got it all layed out.but i will probably be going with a link ems.hey i found out that the reason pettit doesnt use a map sensor is that link has it built in i believe.
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Old Jul 28, 2002 | 11:53 PM
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Originally posted by twint78
well like i said to secret to talk about on computer.it will take me a few yrs to do and over 100k probably.my goal is 2000lbs 900-1000hp.ive got it all layed out.but i will probably be going with a link ems.hey i found out that the reason pettit doesnt use a map sensor is that link has it built in i believe.
if you want 2000lbs why even start with an fd, it would be far easier to order the outer sheet metal and build a tube frame, or even buy and old lola chassis or something

mike
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Old Jul 29, 2002 | 12:07 AM
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cuz im making a street show strip car not a goddamn dragger.thats what everyone thinks on this forum.big numbers.no dont go with a t66 go with a t101.my god if i was wanting a dragger i would have used a tube frame.why can i have a 3 rotor version of jimlabs car?
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Old Jul 29, 2002 | 11:30 AM
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Originally posted by twint78
cuz im making a street show strip car not a goddamn dragger.thats what everyone thinks on this forum.big numbers.no dont go with a t66 go with a t101.my god if i was wanting a dragger i would have used a tube frame.why can i have a 3 rotor version of jimlabs car?
you can have a 3 rotor version of jim's car, but jim's car isn't going to wiegh 2000lbs. i actually thought you might be going roadracing. if your going to move the engine that far back it would be far easier to build the chassis around the engine instead of shoe horning it in.
you're the one with the "secret plans". i'm trying to offer options, if i was going to build a 2000lbs car fd with a 20b i would start with a tube frame.

mike
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Old Jul 29, 2002 | 12:35 PM
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too too difficult but i can make it 2000lbs with out the tube frame.im doing alot of custom fabrication.a little cutting here,a little removing here,a li'l aluminum,carbon fiber, and the great magnesium cased gforce tranny.

but hey michel we should start our own thread.we could share secrets through the om thing though and patent the ****,so no one can still the idea.i will be contracting a few people for this.here are some to name a few when im ready.

rotary extreme
rmsports
painless
granny's
myself
and some wiring genius
im gonna get a wiring guide for dummy's cuz im goin to start from scratch.ill probably use the stock relay and fuse boxes since they are at my disposal.

also michel have u heard anything good on the nordskog
digital interface layout?for tachs speedos temps and signals?if not anythin good what would u recommend?
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Old Jul 29, 2002 | 08:45 PM
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oh hey i just looked sumtin up tt.i will be using the nordskog for letting me know my lights and high beams/flashers/turn signals.i will use the HKS CAMP system along with a CONJUNCTION unit to monitor my speed/revs/oil temp/coolant temp/oil press/boost and egt/i will also use my mechanical boost gauge and a egt gauge whenever i hafta view my speed.this ride will be hooked up.
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