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October 19, 2018, 07:35:28 AM

A mucky one - racing rail.

This is a discussion for the topic A mucky one - racing rail. on the board Members Buggies.

Author Topic: A mucky one - racing rail.  (Read 22443 times)

this user is offline PhillipM

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on: March 26, 2015, 11:33:31 PM
Lovers of all shiny and bling, look away now, don't say I didn't warn you.




...






I WARNED YOU!









For those who are spraying bleach at their screen and rubbing furiously, have some shiny to restore the balance:



AND I'm going to let you look at more shiny things to erase the earlier trauma inducing flying mud from your minds. I'm just too nice to you lot:






One of them mucky ones. Sorry.


this user is offline PhillipM

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Reply #1 on: March 26, 2015, 11:57:50 PM
Now I've given you some shiny bits, you can get dirty again!




 :D
One of them mucky ones. Sorry.


this user is offline snoopy

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Reply #2 on: March 27, 2015, 06:13:18 AM
Nice good clean fun there. What is the spec?


this user is offline Manxrod

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Reply #3 on: March 27, 2015, 06:34:05 AM
That's more than a spec of dirt it's filthy. ;D
make it if you can.


this user is offline PhillipM

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Reply #4 on: March 27, 2015, 11:03:38 AM
Volunteering for cleaning it then?  ;-)up


As it was in those pictures, spec wise (roughy, as it changed a lot through the years - when we first started it was a 2.1 VW on dellorto's and an 091 box):

Frame is T45 tube, approx 900kg inc fluids + driver.
268bhp Mazda RX-8 Renesis engine in the back, driving through an adapted VW 180mm chromoly flywheel + a Kennedy stage 4 PP
Renault UN5 transaxle, using 930 CV's + 300M shafts.
4 x 12" stroke Fox coilovers with canisters at the rear ~ 13" of wheel travel, ish.
2 x 10" Fox emulsions (but modified into non-emulsion with some old Bilstien canisters) up front ~ 10" of travel.
4 pot calipers at the rear, 2 pots up front, both on custom made disc setups, fiddle brakes for left/right braking split on the rears.
195/70 R16 Fedima Evoxtreme tyres up front on 6J rims, 235/70 R16's on the rear on 7J rims.


The shiny parts are because it's been in the workshop a while, being converted to a Honda S2000 engine, supercharged using the Eaton from a 5L jag V8, longer rear arms, longer shafts, new uprights and everything pushed forwards to try and stop the rear end hitting the floor quite so much, just doing all the finishing touches now, should be an easy 360bhp then ;)
« Last Edit: March 27, 2015, 11:06:58 AM by PhillipM »
One of them mucky ones. Sorry.


this user is offline Doon L001

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Reply #5 on: March 27, 2015, 11:41:22 AM
Hope putting your tea donw on the bonnet didnt leave a mark
Dave - Doon LWB 1st one made  ;-)up Name "Weather Permitting"


this user is offline PhillipM

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Reply #6 on: March 27, 2015, 12:58:04 PM
It did, there was a clean ring in the mud!
One of them mucky ones. Sorry.


this user is online apmaman

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Reply #7 on: March 27, 2015, 03:30:23 PM
I remember reading about this on Detailing world a while ago. Looked awesome!

Interesting to see an s2000 engine go in, as if I were to do a conversion I'd go with that! The axis of evil.... Japan and German engineering together!
Arran
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this user is offline PhillipM

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Reply #8 on: March 27, 2015, 04:33:24 PM
I've loads of pictures on the install, I'll put some up when I get in later.
One of them mucky ones. Sorry.


this user is offline Dave DND

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Reply #9 on: March 27, 2015, 04:35:43 PM
I've loads of pictures on the install, I'll put some up when I get in later.

Really looking forward to that   ;-)up
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this user is offline PhillipM

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Reply #10 on: March 27, 2015, 06:57:58 PM
Well, this was it originally getting pulled apart to convert to the renault transaxle:



Then the conversion to the Mazda rotary engine:





And radiators, etc:





Look, it's still clean!



Anyway, we raced with that for a while, had some reliability issues with the engines (scrapyard sourced, then on having one rebuilt the guy doing it screwed up the housings), so it got parked up for a while and was going to be sold, after a year or so we did some research for a buyer into dropping a 4-pot motor into it, and decided if we were doing it anyway, may as well do it for ourselves!

Angle grinder came out (As you can see, it has had a LOT of work over the years of racing, compared to above!)  :D:



Beam tube got chopped as we don't use torsion bars as the main springs any more anyway (having swapped to coilovers halfway through with the rotary) - that let us push the engine and 'box forwards:



Honda F20C got mounted:





Which, after pushing the 'box forwards, resulted in it sitting almost exactly where the rotary did (the rotary engine being much more compact):



This came up for peanuts on ebay:



Seemed rude not to:



However, our new clutch setup was a lot shorter than the previous VW dished flywheel setup, and there was a lot of space in the bellhousing doing nothing, so, the angle grinder came out to play along with Mister TIG welder:



Which then required more frame surgery for new mountings:



And that left the engine much further forwards - this is the old rear cage from running the rotary engine!



Then we made the exhaust, rather tricky given the need for passing MSA noise regs and getting plenty of bottom end power out of the motor, especially when there's a 235 tyre swinging past it at the side....









More shortly, need coffee :D
« Last Edit: March 27, 2015, 07:00:02 PM by PhillipM »
One of them mucky ones. Sorry.


this user is offline Dave DND

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Reply #11 on: March 27, 2015, 07:21:26 PM
Coffee ?   :o

Somehow I had you down for something a little stronger   ;D

Cool vehicle and great pics though   ;-)up
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this user is offline PhillipM

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Reply #12 on: March 27, 2015, 07:33:27 PM
Moonshine and banjo's at dawn? :D

Big advantage of the rotary, and to some extend the original flat four, is they have quite a lot of ground clearance. And inline 4 with a big sump does, so after a bit of thinking about it, some cash was saved up and a dry sump setup was fitted/made up:



and a shiny bit of billet ally magically made itself into a supercharger pulley...



Some plans were made for the new rear end:



Of course, all that moving the engine/box forwards mean it ran into the original radiator mounts, so some alterations ensued there:



And things started to get rather tight in the engine bay:



Especially at the bottom:



But, all was worth it when you look at it, the rear end has much better ground clearance and we've reduced the engine overhang massively, which should help when cornering:



Engine bay crowding meant a rather unorthodox airbox position:



New dashboard



And then things got REALLY silly, and we started making new rear uprights that have the CV joint actually inside the bearings, so the driveshafts can be a lot longer:





:D

More later, my chinese has arrived...
One of them mucky ones. Sorry.


this user is offline PhillipM

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Reply #13 on: March 27, 2015, 08:26:58 PM
Annnnnd, I really buggered up some of the spelling in that, sorry :D
One of them mucky ones. Sorry.


this user is offline snoopy

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Reply #14 on: March 27, 2015, 09:46:03 PM
I  would presume the new motor will be better suited to the sport than the rotary. An interesting build so keep us posted ;-)up