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> V8 tranny thoughts
Brett W
post Jul 16 2004, 08:41 PM
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Why no just take a standard 915-930 tranny and flip it up side down? This should take the hassels out of flipping the ring gear, you would have to come up with pump and a shift linkage though?
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skline
post Jul 17 2004, 07:20 AM
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I dont know enough about it yet but I am looking into it really closely. I talked to a guy the other day that told me to call Scott at Renegade Hybrids and talk to him about it. From what he said, it is very expensive to convert a 930 trans to work correctly with a V8 car. He said once you are done though it would last for ever and be good up to about 700 HP. The cost he said was close to 10k for the transmission and conversion. There has to be a less expensive route but without more research, I dont know yet. I would suggest calling Scott at Renegade and talking to him about it. He also said that he has been running a RH converted 901 on his LS1 for 4 years without any problems and the cost for that transmission was only around 2500. Maybe a better option if you are just running a street car.
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Mueller
post Jul 17 2004, 07:58 AM
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Brad has or had an adaptor plate for running an upside 930 box.... (I think???)
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Brett W
post Jul 17 2004, 06:39 PM
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I want the baddest street car known to man yet I have to be concerned everytime I drop the hammer whether or not the tranny will go up in smoke when those big bad 335-40/ZR17s hook up.

I will definiteley run either a 930 or a 915 box, but why not maybe a G50 or something like that? Is that a better option? I have no interest in running a 901 gear box, will never be able to handle my driving with a 600hp V8. 901s are for budget swaps or 4 cylinders.

The adapter is not the problem but I was wondering if anyone has ever done it.
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dan10101
post Jul 17 2004, 08:51 PM
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While we're talking about V8 trannies. how about these?

http://www.lambolounge.com/Chassis/Transmi...n/5000/5000.asp
This looks surprisingly like my 944 trans.

http://elektro.cmhnet.org/~charlie/photos/.../01E/trans.html

http://elektro.cmhnet.org/~charlie/photos/...cars/01E/v8info

From Pors-chev.com
QUOTE
Many GT40 replicas in Europe (and they have use data after several years)use
the UN1-013 Renault transaxle (even for track use) with reportedly good
results. Coupled with a larger dia. input shaft, the bellhousing is larger
and more suitable for V8 (Ford in this case) adapting, as a they use a Ford
V6 flywheel and a nice sized clutch. Also, the ratio's in the UN1-013 are
much more favorable right off the shelf. There ought to be plenty of cheap
Eagle Medallion transaxles out there. Check out the below:


and...
http://fiberfab.us/transaxles.html
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LS6/914
post Jul 18 2004, 09:07 AM
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Installed a 915 in place of a 901 in a clients v8 car. Custom shift cable assembly install is fairly simple. A WEVO unit would be better if it becomes available. The cost of the 915 will be upwards of 7-8K. It will still have a poor 2nd gear ratio for track use (turn 3a & 3b @ Pacific Raceway). Lar
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BIGKAT_83
post Jul 18 2004, 05:34 PM
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QUOTE(Brett W @ Jul 17 2004, 04:39 PM)
I want the baddest street car known to man yet I have to be concerned everytime I drop the hammer whether or not the tranny will go up in smoke when those big bad 335-40/ZR17s hook up.

I will definiteley run either a 930 or a 915 box, but why not maybe a G50 or something like that? Is that a better option? I have no interest in running a 901 gear box, will never be able to handle my driving with a 600hp V8. 901s are for budget swaps or 4 cylinders.

The adapter is not the problem but I was wondering if anyone has ever done it.

Got some pictures at home of a 930 installed upsidedown in a 914 it looks like it worked good for the shift linkage also.

Looks like the car needs to be real low for the axles to run at a fairly strait angle.

I'll post these as soon as I return home.

Bob
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Brett W
post Jul 18 2004, 10:08 PM
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Please post the pics. I would like to see them.

The car that is in the early design stages is a LS2 powered 914 with a dual a-arm front and rear suspension. The chassis that I am starting with is all rusty so I am going to cut the front and rear halves off the car and build subframes that bolt on. The engine and tranny and rear suspension will be housed in tubular subframe that can be removed or modified as necessary. I have the liberty of using any transaxle I want because I am starting from a blank sheet.

This winter will be spent fixing my current four cylinder car, finishing the turbo honda and doing some design work with the chassis and suspension for V8 car. I hope to start cutting some tubes in the spring.
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LS6/914
post Jul 18 2004, 10:25 PM
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LS2 ? At GM we had a LS1 and LS6. We had LT1, LT4, and the brain damaging LT5. I do not recall a LS2.
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dan10101
post Jul 18 2004, 10:31 PM
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Oh please, can you tell me where to get info on the differences between these engines? GM for dummies... Even though we're building a standard SBC that I'm familiar with, I still am in the dark on the newer ones.

Sorry to get off track, I'm very interested in Trans options and if any of the ones I posted will work.
Thanks,
Dan
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LS6/914
post Jul 18 2004, 10:46 PM
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Your local Chevy or speed shop should have the Chevrolet Power & GM Performance Parts books. These will give you a ton of info however they are weak on LT4 & 5 info.
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dan10101
post Jul 18 2004, 11:36 PM
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I'm just looking for general info. Like what year they were built, when the blocks/heads/etc changed.
I just figured there would be a site out there that had that. Haven't found it yet.
Thanks,
Dan
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Scott Carlberg
post Jul 19 2004, 12:12 AM
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QUOTE(dan10101 @ Jul 18 2004, 09:31 PM)
Oh please, can you tell me where to get info on the differences between these engines? GM for dummies... Even though we're building a standard SBC that I'm familiar with, I still am in the dark on the newer ones.


Bell & Gaines Machine Shop
1117 7th Street
Modesto Ca
521-9400
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Brett W
post Jul 19 2004, 05:58 AM
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The LS2 is the new version of the LS1. 415 hp, 15lbs lighter than the LS1. Should show up this summer. Not sure if this is just a crate motor or an actual production motor but I read about it a few months ago in Car Craft.
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Mueller
post Jul 19 2004, 09:58 AM
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Brett,

Contact Ed Ducey (propicer), he is a partner or something like that for the West Coast built Ultima cars...

I copied this from the official Ultima website:

QUOTE
Which engine should I use in my Ultima?

The factory has designed the Ultima to accept the small block Chevrolet V8 from 300bhp to over 600bhp.
The factory does not recommend and cannot offer any support to customers fitting alternative engines.

Which gearbox do I use?

The Ultima has been designed to accept the Porsche G50 5/6 speed or the Getrag 6 speed in standard form. Apart from changing the breather location no other modifications are recommended.

How strong are the transaxles?

The Porsche transaxle is superbly engineered by Porsche and has an exceptional weight/strength ratio.
The Porsche transaxle fitted to an Ultima has been used successfully with engines up to 600bhp.


If you could get Ed or someone to take a few measurements of a chevy V8/G50 combo, you should be able to figure out real fast whether or not it'll fit or where you'd run into problems.

i have no idea if the box is upside down or not, the Ultima webiste does mention that the vents need to be modified on the G50 box, so I would be willing to bet that they run the box upside down. For your application and the amount of cutting/modifications you'd be doing, it should be no big deal at all if the trunk floor needs "tweaking" due to the larger and upside down transmission.
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bondo
post Jul 19 2004, 10:43 AM
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QUOTE(dan10101 @ Jul 18 2004, 10:36 PM)
I'm just looking for general info. Like what year they were built, when the blocks/heads/etc changed.
I just figured there would be a site out there that had that. Haven't found it yet.
Thanks,
Dan

http://www.hpsalvage.com/lt1.htm

This has some good info on LT1 and LS1, which are the common newer engines. As far as I know the engines with numbers other than 1 are higher performance versions that are somewhat rare in comparison.
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turbo914v8
post Jul 19 2004, 07:56 PM
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Hi guys, super lurker turbo Paul here. I have not heard anyone mention the Pantera ZF box as a great alternative to the other gearboxes mounted to a v8 in the 914. Many others and I have gone this root with great success. There are many Pantera's out there with 700, 800, 900HP big and small blocks mated to the ZF living a long life. Because the Pantera was designed to work with the v8 the gear ratios are perfect. As a matter of fact you can get any gear ratio you like. There are also a few v8 powered 914 running the ZF as well. Just my attempt to add to a great discussion.

Regards,

Turbo Paul
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aircooledboy
post Jul 19 2004, 07:59 PM
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So, what $ does a Pantera box go for???
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dan10101
post Jul 19 2004, 08:16 PM
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QUOTE(bondo @ Jul 19 2004, 08:43 AM)

http://www.hpsalvage.com/lt1.htm
.

Bondo,
Just what I was looking for (IMG:style_emoticons/default/smilie_pokal.gif)
Thanks!
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dan10101
post Jul 19 2004, 08:20 PM
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QUOTE(turbo914v8 @ Jul 19 2004, 05:56 PM)
out there with 700, 800, 900HP big and small blocks mated to the ZF living a long life. Because the Pantera was ..


Is that ZF the same as this one?

http://fiberfab.us/transaxles.html
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