leec
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« on: September 20, 2019, 13:44:16 pm » |
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I have a gearbox that needs a new ring and pinion. The box is going in a light tube chassis car (550kg ish) and am looking to run about 350bhp with either a turbo motor or gas.
I'd love a Weddle 3:88 but at £1000 that is a tough ask at the moment. I have got a good used VW 3:88 but am I asking too much of it with the above mentioned BHP?
Thanks, Lee
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Erlend / bug66
Global Moderator
Hero Member
Posts: 958
SCC Event
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« Reply #1 on: September 20, 2019, 13:54:22 pm » |
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Have it shot permed.
Run it till it breaks, or close your eyes and order a Weddle.
The weight will help a lot, as will clutch management
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The '67: 10.626 @ 132mph, SCC 2016 10.407 @ 134mph, SCC 2017 10.221 @ 135mph, SCC 2018
The '59: Not yet..
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leec
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« Reply #2 on: September 20, 2019, 13:58:13 pm » |
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Thanks, What did your box have, weddle? Lee
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Erlend / bug66
Global Moderator
Hero Member
Posts: 958
SCC Event
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« Reply #3 on: September 20, 2019, 14:05:00 pm » |
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Thanks, What did your box have, weddle? Lee
The type 1 I had was fully weddle internals. The new mendy also has a 3.88 R&P, but a bit bigger
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The '67: 10.626 @ 132mph, SCC 2016 10.407 @ 134mph, SCC 2017 10.221 @ 135mph, SCC 2018
The '59: Not yet..
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leec
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« Reply #4 on: September 22, 2019, 16:01:49 pm » |
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Had a PM from someone who has gone deep into the 10's with a vw 3:88.
Anyone else with experience that could help me decide?
Lee
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Erlend / bug66
Global Moderator
Hero Member
Posts: 958
SCC Event
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« Reply #5 on: September 22, 2019, 16:33:38 pm » |
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Had a PM from someone who has gone deep into the 10's with a vw 3:88.
Anyone else with experience that could help me decide?
Lee
8’s on a German RP has been done
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The '67: 10.626 @ 132mph, SCC 2016 10.407 @ 134mph, SCC 2017 10.221 @ 135mph, SCC 2018
The '59: Not yet..
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Fastbrit
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« Reply #6 on: September 22, 2019, 16:59:31 pm » |
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I ran Klinkenbourg (ie, VW) 3.88 diffs in 'No Mercy' - turbo'd and into the 'nines'.
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leec
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« Reply #7 on: September 22, 2019, 21:32:45 pm » |
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Thanks Keith, Think it's got to be worth a go. Lee
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PPRMicke
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« Reply #8 on: September 26, 2019, 10:18:02 am » |
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Hi vw R&P can handle more than 450 hp and 600 Nm We see this here in Sweden But then you have to control the clutch 99 cases out of 100 when you break R&P you have no control over the clutch Another thing that can kill is the quality of the oil (for aggressive clutch pressure) /// Micke
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DaveN
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« Reply #9 on: September 26, 2019, 18:08:00 pm » |
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Had a PM from someone who has gone deep into the 10's with a vw 3:88.
Anyone else with experience that could help me decide?
Lee
Do they still have that same ring and pinion in the gearbox now or swap it out every year? As a member of Outlaw flat four you know that most of the quick cars run a 091 box. The only one I can think of running in that HP range with a type one box is Clarke he runs a daiken. Don’t waste your time, but a bus box
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leec
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« Reply #10 on: September 26, 2019, 19:32:29 pm » |
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Hi Dave,
A bus box is obviously a great option, but not one I can entertain at the moment.
Lee
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DaveN
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« Reply #11 on: September 26, 2019, 20:23:04 pm » |
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You could always borrow the box from your oval and use that to get the car up and running.
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leec
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« Reply #12 on: September 26, 2019, 20:38:46 pm » |
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That's the back up plan
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dragvw2180
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« Reply #13 on: October 08, 2019, 03:43:44 am » |
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Like others have already stated , it is more about the clutch than the OEM 3.88 . I and my race partner are both over 500 fwhp now and still have not cracked or broken a stock 3.88 . After 7 years of abusing my Rev6 clutch I have finally had to rebuild it, I had to replace one disc and lightly glass bead the other disc. Mike McCarthy
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leec
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« Reply #14 on: October 08, 2019, 16:35:36 pm » |
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Thanks everyone. Lee
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DaveN
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« Reply #15 on: October 08, 2019, 19:53:57 pm » |
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What’s the plan then? Are you going to use the vw R&P or get a weddle?
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leec
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« Reply #16 on: October 08, 2019, 22:59:10 pm » |
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Neither. Pete has come up with another solution
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DaveN
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« Reply #17 on: October 09, 2019, 08:37:45 am » |
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091 box?
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leec
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« Reply #18 on: October 09, 2019, 09:59:17 am » |
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Pete found a keyed aftermarket 3:88 for me that he had in stock. Lee
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DaveN
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« Reply #19 on: October 09, 2019, 19:29:49 pm » |
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Cool, you should have the notch out next year without borrowing bits of the beetle.
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leec
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« Reply #20 on: October 09, 2019, 20:15:13 pm » |
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Yep, easily
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Black_65
Full Member
Posts: 234
Life's too short, so drop a bomb on it....
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« Reply #21 on: October 11, 2019, 19:44:06 pm » |
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As Dave said I've been running Danny's old type one box that lasted well over 6 years of racing and hard passes with a stage 2 and daikin combos which come from great advice from others. Loved the set up. I used to drag the car to the line underload and just put the clutch pedal to the floor, hold the motor on the 2 step and just let go and lasted years. It even held up with 70hp of nitrous off the line . It only broke when I went to a kep 4 puck and tired to launch the same and just broke the R&P. The daikin only started to slip with a 140 shot but it was after 2 burn outs as they pushed us back and I think the disc had over 40 passes on it so I got my money's worth...!.
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« Last Edit: October 11, 2019, 19:51:48 pm by Black_65 »
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leec
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« Reply #22 on: October 16, 2019, 13:15:48 pm » |
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Thanks for the info I’ve never been too hard on the gearbox/clutch combo so will go with the R+P Pete has found for me. Lee
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