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"My" Custom
411/412
This is
my moment to dream. I've always envisioned how I could create a 411/412 street
car. There are many aspects of the Type 4 that are waiting to be used in one
unique and creative street car. Let's look how I would create my street
411/412:
Model:
- Any
year 411 or 412 two door sedan. The sedan would be ideal because of it's more
racy roofline and engine room for larger carbs or EFI(electronic fuel
injection) throttle bodies. The wagon could also be used, but the lack of room
for increased breathing would preclude it from having a deserving engine. The
wagon would make a great run-about and grocery-getter.
Suspension:
- This
will take some creativity. No one manufactures a set of sport lowering coil
springs, so cutting and/or heating the coils may have to be done. Another
option is to have a set of coil springs custom wound or modify the car to use
springs off another car (i.e. Super Beetle for the front and Vanagon for the
rear). The other component would be a set of firmer, shorter travel strut
inserts and shock absorbers. I would venture you could have a set custom made
from Bilstein or Koni. This may cost a lot of money($$$) but it would
definitely change the whole feeling of the vehicle. I may have stumbled
upon an interesting bit of trivia. It appears that the sturt housing used on
the early Super Beetles(1302s) are strikingly similar to the one used on the
411/412 series. It may just be possible to fit an adjustable strut housing,
shortened sturt insert, and lowered springs from Topline to the Type 4. I have
no confirmation but this may be possible. Can anyone confirm/deny
it?
Tires:
- The car
came with 155SR15s or 165SR15s stock, so we're looking at keeping the tire
diameter at 25" to 25.5". I would look to a set of VR rated 205/65R15s for the
rear and a set of 195/60VR15s for the front. This will give the car a nose down
rake and a more aggressive stance. You could go with a set of sixteen inch
wheels with 195/50VR16s in the front and 205/55VR16s for the rear. I prefer the
way Yokohama and Dunlop tires handle, so I'd be looking at their high
performance tire line.
Wheels:
- With
wheels we have two options: keep the 4-lug bolt pattern or change to a Porsche
5 bolt pattern. With the 4-lug, we are limited to stock 914 wheels, aftermarket
Beetle wheels and stock VW wheels. An interesting choice would be a set of
wheels from a 2.0 liter 914 with the forged Mahle wheels(commonly called
two-liter alloys). Almost all of the 4-lug wheels available are 15" diameter,
so to go to a larger diameter wheel would require changing the bolt pattern. A
capable VW-friendly machine shop can drill the brake rotors and drums for the
5x130mm bolt pattern. Once this is done, the market is wide open. Many wheels
are available for the Porsche bolt pattern. A good looking, easy to find
combination would be a set of Porsche Fuchs forged alloys(commonly called among
VW people as "Porsche alloys"), 16"x6" for the front and 16"x7" for the rear.
Options from aftermarket tuners like DP, Ruff, Gemballa,etc. are plentiful.
Just make sure the wheels have enough backspacing to fit in the fenders without
rubbing. With the growing popularity of the "German Look", the use of 17"
Porsche Cup wheels may look really nice installed on a modified
411/412.
Engine:
- Since
we are talking an "ideal" situation (no biannual smog inspections), let's put
together a pretty hot engine. Luckily here is where a ton of high performance
parts are available. We can get stroker cranks from 74mm all the way up to
90mm! Couple that with big bore kits from 96mm to 105mm, we could install a
3119cc engine. I think I would build a 2600cc (103mm bore x 78mm stroke) , with
a set of longer Carillo connecting rods. This could be mated to a stock 228mm
flywheel, of course lightened to 12 lbs, and sporting a heavy duty Kennedy
pressure plate and dual friction disc. The top end of this motor would be a set
of 1.8 heads, modified with 50mm x 40mm valves and dual valve springs. For the
intake end, we would use a set of IDA manifolds and TWM 55mm IDA throttle
bodies. Now for exhausts, we may be looking at a custom merged header with a
turbo muffler.
Transmission:
- Due to
the lack of transmission parts for the Type 4 transaxles and not knowing how it
would hold up to 200hp+, I would adapt a Type 1 IRS transaxle or Type 2 IRS
transaxle. Close ratio gears and heavy duty differentials are available for
both of these transaxles but some fabrication will be required. The first would
be the clutch slave cylinder. A sandrail slave cylinder from Neal, Jamar, or
CNC could be used to maintain a hydraulic clutch. The other modification would
be in getting the transaxle to bolt in. Once again use your creativity.
Looking at an old Type 4 service manual, I noticed that the Type 4 manual
transmission hockey stick is at the bottom of the transmission, whereas the
Type 1 and Type 2 IRS are located towards the top. This make installing a T1 or
T2 IRS transaxle difficult. But going through another book, I noticed that the
Porsche 911 trans(901) has the hocky stick in an almost identical location to
the stock Type 4 transaxle. Hmmm, 5 speed, Porsche strength, and minimal
installation work, this may be the ultimate setup for the Type
4.
Webmaster:
Tom Slider
Hosted by:
Tuna Can Web Productions
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