The Cal-look Lounge

Cal-look/High Performance => Pure racing => Topic started by: leec on September 20, 2019, 13:44:16 pm



Title: VW 3:88 ring and pinion
Post by: leec on September 20, 2019, 13:44:16 pm
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


Title: Re: VW 3:88 ring and pinion
Post by: Erlend / bug66 on September 20, 2019, 13:54:22 pm
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


Title: Re: VW 3:88 ring and pinion
Post by: leec on September 20, 2019, 13:58:13 pm
Thanks,
What did your box have, weddle?
Lee


Title: Re: VW 3:88 ring and pinion
Post by: Erlend / bug66 on September 20, 2019, 14:05:00 pm
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  ;D


Title: Re: VW 3:88 ring and pinion
Post by: leec on September 22, 2019, 16:01:49 pm
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


Title: Re: VW 3:88 ring and pinion
Post by: Erlend / bug66 on September 22, 2019, 16:33:38 pm
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

8ís on a German RP has been done  ;)


Title: Re: VW 3:88 ring and pinion
Post by: Fastbrit on September 22, 2019, 16:59:31 pm
I ran Klinkenbourg (ie, VW) 3.88 diffs in 'No Mercy' - turbo'd and into the 'nines'.


Title: Re: VW 3:88 ring and pinion
Post by: leec on September 22, 2019, 21:32:45 pm
Thanks Keith,
Think it's got to be worth a go.
Lee


Title: Re: VW 3:88 ring and pinion
Post by: PPRMicke on September 26, 2019, 10:18:02 am
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


Title: Re: VW 3:88 ring and pinion
Post by: DaveN on September 26, 2019, 18:08:00 pm
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.  Donít waste your time, but a bus box


Title: Re: VW 3:88 ring and pinion
Post by: leec on September 26, 2019, 19:32:29 pm
Hi Dave,

A bus box is obviously a great option, but not one I can entertain at the moment.

Lee


Title: Re: VW 3:88 ring and pinion
Post by: DaveN on September 26, 2019, 20:23:04 pm
You could always borrow the box from your oval and use that to get the car up and running.


Title: Re: VW 3:88 ring and pinion
Post by: leec on September 26, 2019, 20:38:46 pm
That's the back up plan  ;D


Title: Re: VW 3:88 ring and pinion
Post by: dragvw2180 on October 08, 2019, 03:43:44 am
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


Title: Re: VW 3:88 ring and pinion
Post by: leec on October 08, 2019, 16:35:36 pm
Thanks everyone.
Lee


Title: Re: VW 3:88 ring and pinion
Post by: DaveN on October 08, 2019, 19:53:57 pm
Whatís the plan then?  Are you going to use the vw R&P or get a weddle?


Title: Re: VW 3:88 ring and pinion
Post by: leec on October 08, 2019, 22:59:10 pm
Neither. Pete has come up with another solution  :)


Title: Re: VW 3:88 ring and pinion
Post by: DaveN on October 09, 2019, 08:37:45 am
091 box?


Title: Re: VW 3:88 ring and pinion
Post by: leec on October 09, 2019, 09:59:17 am
Pete found a keyed aftermarket 3:88 for me that he had in stock.
Lee


Title: Re: VW 3:88 ring and pinion
Post by: DaveN on October 09, 2019, 19:29:49 pm
Cool, you should have the notch out next year without borrowing bits of the beetle.


Title: Re: VW 3:88 ring and pinion
Post by: leec on October 09, 2019, 20:15:13 pm
Yep, easily  :)


Title: Re: VW 3:88 ring and pinion
Post by: Black_65 on October 11, 2019, 19:44:06 pm
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...!.


Title: Re: VW 3:88 ring and pinion
Post by: leec on October 16, 2019, 13:15:48 pm
Thanks for the info  ;D

Iíve never been too hard on the gearbox/clutch combo so will go with the R+P Pete has found for me.

Lee