| [ Total Views: 1524 | Total Replies: 13 | Thread Id: 63230 ] |
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 Stylieee
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| posted on June 18th, 2007 at 12:20 AM |
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1st time conversion advice (wrx bug)...
Hi all,
i'm planning on doing a conversion of my 72 bug to run an ej20t.
so far i've got a doner '93 japanese WRX that i've started stripping parts from, a late bay 2.0 gearbox, and an rjes bellhousing ta mate up the box
and engine.
I intend to use as much of the subaru as possible, including rad, aricon, gauges, and if possible im going to replace all the vw wiring with the
subaru loom (obviously extending where possible.
I've got a week off work next week and was wondering if anyone had advice on where to start?
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72RSbug
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| posted on June 18th, 2007 at 03:35 AM |
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I'd say first thing you need to do (for a quad cam) is grind away part of the engine compartment for the bigger heads+ IC .
Make a radiator mount up front and get some piping to connect it to the engine.
There's a lot of small things that need to be done with this kind of engine swap , to much to write down propably
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Stylieee
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| posted on June 18th, 2007 at 05:42 AM |
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thanks, would it just be a section of the firewall and the inner fenders that need to be cut?
also i was wondering what people do about engine mounts?
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VWCOOL
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| posted on June 18th, 2007 at 09:43 AM |
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Start by building your cooling system into the front of the car BEFORE you pull the VW engine. Keeping the car mobile makes work easier. Possibly run
the coolant tubes along under the running boards and make small cuts to teh guards for clearance. Are you intending to use a US-market air-con L-Bug
louvred front valence panel?
Some people don't use engine mounts - they simply hang the engine, VW-style, from the gearbox. BUT the gearbox/chassis horns will need extra bracing
into the body using either a 'kafr cup' brace or - better - straight sections up into teh luggage area of teh body shell, with appropriate
reinforcing. It helps engine installation room etc, too, to relocate the (beetle) gearbox a couple of inches further forward in the chassis by
flipping the rear mount and building a custom front mount
Why did you choose the Kombi box? Did you consider ratios etc? Kombi ratios are not a happy combo with the WRX engine; short 1st gear etc
Good idea to use the stock management system but mounting gauges etc to use teh complete Subaru harness will take LOTS of time and $. It will be
easier and cheaper to use just the management system wiring and retain the Beetle body harness.
[ Edited on 18-6-2007 by VWCOOL ]
Pay your debts, CxxT
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Stylieee
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| posted on June 19th, 2007 at 06:07 PM |
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chose the box as the belhousing adapter kit i have means i can keep the subary clutch/fly and starter motor. also the 2.0 bus boxes (6 rib) are a lot
stronger than bug boxes and have a longer 4th gear so motorway driving should be more comfortable/economical.
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VWCOOL
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| posted on June 19th, 2007 at 10:20 PM |
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No, all the gears are lower. First gear will be almost useless
Pay your debts, CxxT
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Stylieee
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| posted on June 20th, 2007 at 01:35 AM |
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i know of at least 2 subaru drag bugs in the uk that run almost stock 2.0 bay boxes, and ive gone for that based on theyre set ups.
this might be of interest to you so you can see the kit ill be using: RJES
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VWCOOL
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| posted on June 20th, 2007 at 10:46 AM |
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Good looking stuff...
Pay your debts, CxxT
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ElusiveStranger
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| posted on June 22nd, 2007 at 04:34 AM |
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Jorgan's thread will help you out a fair bit:
http://forums.aussieveedubbers.com/viewtopic.php?tid=35720#pid429934
U2U'd you too
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1303Steve
A.k.a.: Steve Carter
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| posted on June 22nd, 2007 at 08:48 AM |
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| Quote: | Originally
posted by Stylieee
i know of at least 2 subaru drag bugs in the uk that run almost stock 2.0 bay boxes, and ive gone for that based on theyre set ups.
this might be of interest to you so you can see the kit ill be using: RJES
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Hi
What sort of tyre diameter are they using with the drag cars? For an everyday car you don't want to go much lower than a stock bugs final drive.
Steve
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pete wood
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| posted on June 22nd, 2007 at 09:57 AM |
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Unless you are using 31inch tyres on a baja, a stock 091 is totally wrong for that motor. In fact, you could even stand using a taller 4th for a road
baja with 31inch tyres. I hope you are putting a much taller gearset in that gearbox. That belhousing kit is very nice, but it limits you to 228mm
clutches. Kenedy makes a much larger variety in 200mm. Anyhow, if you must use the 228mm, keep the stock friction plate and get an uprated pressure
plate. Button clutches are nasty to drive on the street.
In fact, for the price, ratios and ease of availability in the UK I'd look into a porsche 5 speed.
Next up, make sure you shorten the sump.
I agree with VWCOOL, keep the stock ECU. There's lots available for them and the factory diagnostics are a God send.
Check this site out. http://www.ricola.co.uk
Richard is onto his second conversion and he's in the UK with you.
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pete wood
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| posted on June 22nd, 2007 at 09:59 AM |
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oh, put the radiator in the front. use the stock thermostat and don't drill a hole in it. 
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Stylieee
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| posted on June 25th, 2007 at 05:38 AM |
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| Quote: | Originally
posted by pete wood
I hope you are putting a much taller gearset in that gearbox. That belhousing kit is very nice, but it limits you to 228mm clutches. Kenedy makes a
much larger variety in 200mm. Anyhow, if you must use the 228mm, keep the stock friction plate and get an uprated pressure plate. Button clutches are
nasty to drive on the street.
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the kit uses stock impreza clutch, fly, friction/pressure plates... surely thats an advantage as if required i could just use aftermarket subaru
stuff. would there be a need to upgrade anything though as i already have a doner impreza so all the clutch parts i have are those actually designed
for that motor?
as far as clutch drivability goes trust me it'll be a dream for me, my current daily driver is a supra with a triple plate racing clutch lol.
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Stylieee
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| posted on June 25th, 2007 at 05:39 AM |
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| Quote: | Originally
posted by pete wood
oh, put the radiator in the front. use the stock thermostat and don't drill a hole in it.
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will do, already started cutting 
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