 
     |
| The Official VR6 Engine Swap (Page 4/73) |
|
Philphine
|
DEC 22, 08:28 AM
|
|
be interesting to see it as an actual real life swap. way back when i first joined here there was someone who claimed to have done this. i think the thread ended up being several pages long, but the more pointed the questions got the less he posted till he finally disappeared.
good luck, hope you can add to the swap possibilities.
|
|
|
|
vortecfiero
|
DEC 22, 09:08 AM
|
|
interesting !
those engines can make a whole lot of power
also... hehe
you are paving the way for other VW/audi swaps...
turbo 4?
twin turbo 6
oh yeah and I think they have a v8 too... (lol @ think) jk hehe I love the audi v8
------------------
87 Fiero GT 5sp with Vortec L35 4300 Turbocharged V6
Bully Stage 2 clutch
Syclone intake manifold and engine management with Moates adapter and chip burner
Air/water intercooler and Devil's Own progressive water/alky injection
50lb injectors, 3 bar map sensor, Walboro fuel pump and Jabasco Intercooler pump
LM1 wideband on custom manifolds and 3" stainless exhaust system
T31/T04B S4 turbo with a Super T61 in the box
S10 caliper conversion.
Murphy's Constant Matter will be damaged in direct proportion to its value
Murphy's Law of Thermodynamics Things get worse under pressure.
Arthur C. Clarke "Any significantly advanced technology is indistinguishable from magic"
|
|
|
|
bmwguru
|
DEC 22, 01:09 PM
|
|
| quote | Originally posted by vortecfiero:
interesting !
those engines can make a whole lot of power
also... hehe
you are paving the way for other VW/audi swaps...
turbo 4?
twin turbo 6
oh yeah and I think they have a v8 too... (lol @ think) jk hehe I love the audi v8
|
|
The swap seemed natural for the Fiero. It is a transverse V-straight 6 that can handle added power. I work on German cars for a living, so I know these engines in and out. The 1.8t can be made to go faster, but the motor isn't very reliable. The Audi V8 is similar to the Porsche 928 engine. The Audi V6's are very wide, so it would be a tricky swap. I was thinking of the VW W8, but the motor is very expensive.
As for making it reality, well, concider it to already be a reality. This swap is already in progress and I can't see a single part of the swap that is going to give me major problems. The fly by wire throttle, custom axles, software reprogram....it's all planned for. This is why I purchased a complete car, rather than individual components. I have the VIN to order any replacement parts and I have all the wiring and modules needed.
Dave
|
|
|
|
crytical point
|
DEC 23, 09:00 AM
|
|
|
I have driven VR6 powered VW's from 12-24v and turbo (limited to 21 psi) and they are so fast and worth it is so many areas. My fiero started to go out on me though it was just playing dead while I was looking for a VW with either 1.8t or 24v VR6 and I was disappointed when the Fiero ran fine with no problems. Everytime it gives me an excuse to get another car or dump all of my money into the monza it runs fine with no problems and stays that way till if feels like crapping out again.
|
|
|
|
Austrian Import
|
DEC 23, 10:20 PM
|
|
| quote | Originally posted by vortecfiero:
interesting !
those engines can make a whole lot of power
also... hehe
you are paving the way for other VW/audi swaps...
turbo 4?
twin turbo 6
oh yeah and I think they have a v8 too... (lol @ think) jk hehe I love the audi v8
|
|
Yea, I was waiting myself for some variety and cross breeding with engine swaps. Guess someone has to take the first (well not really first..) step. Glad it's BMWGuru.
You have no idea even.  that Audi V8 engine is just gorgeous and indestructible (stock). There are Audi V8's and Audi A8's driving around that have 400,000 miles on the original engine. Not to mention the sound is just sweet. Very smooth and sophisticated.
|
|
|
|
WisconsinGT
|
DEC 23, 10:41 PM
|
|
I am first in line at bmwguru's place for a VR6 swap. 
|
|
|
|
bmwguru
|
DEC 26, 08:33 AM
|
|
I feel like a kid in a candy store. I've been looking around and I knew there were a lot of aftermarket mods for the VW's, but I've found stuff that I didnt expect. Just about every part of the car has an aftermarket mod for it. Custom gearsets, LSD or race spools, many turbo kits....not to mention the normal engine mods such as cams, intakes, headers, etc.
Anyway, I'm planning on pulling the drivetrain out of the VW on Friday. The first step will be to replace the timing chains and guides. Also, the rear main seal will be done at this time. The stock flywheel weighs 20lbs. I will be replacing that with a 10lb billet steel flywheel. I could go with the 7.5lb aluminum, but I figure with the eventual turbo install, a 10lb will work better. If it is in the budget, I'll be doing the LSD or race spool at that time. If not, I figure it will be a 6 hour job to R&R the trans and tear it apart to replace the differential later.
Like I mentioned before, the engine is going in naturally aspirated to see how it reacts to its new home. I want to see how it feels compared to a GTI VR6. Once I am happy with the way it runs, no overheating, nothing weird with the driveability, then it goes to the dyno for a baseline HP reading and track. Then onto the turbo mods and back to the dyno and track.
If I feel that the swap is doable for a DIY'er, I might make a kit. Otherwise, I'll concider doing a swap or two at my shop.
Dave
|
|
|
|
megafreakindeth
|
DEC 26, 01:13 PM
|
|
if you need anything i know vws up and down and sideways. i too have been eyeballing this one for its many advantages. as for taking the motor out of an mk4 you may have extra mounting problems due to the crappy dogbone style mount with the two side mounts. the earlier mk3 vr6s had real motor mounts that were on the front and back of the motor but ive never actually looked to see if the blocks are the same. are you planning on using the vw engine management? i think it would be kinda funny to drop a fiero off into a dealer and have them code the control modules for you.
as for 12v not making power, ive seen mk3 12vs with cams and intake/cat back running mid 14s which isnt something our v6 can do. the 24v is a sweet one but i didnt think it would be swappable due to the engine mount configuration.
as for size id have to say the vr6 is prolly the same size length wise, mabye at the most an inch longer but with the head and manifolds off it really is a tiny engine. rock solid too i dont think they have mechanical problems i sure havent seen any.
|
|
|
|
megafreakindeth
|
DEC 26, 01:22 PM
|
|
as for the audi v8 being good, it may be a sweet engine when its in good shape but were talking 4-5hr valve cover gasket jobs(labor wise) and the timing belts are a pain, mabye easier in a fiero but prolly not. the only thing that keeps me from killing the designers at vag are the fact that mechanically they dont really fail and you can pretty much fix everything else with a vag com.
i have dropped one into a 98 a4 quattro which is bascilly the smallest lightest passat with 4 wheel double wishbone you can get, it was much fun. one of these days ill drop a 540 motor into a 3 series, which will probably kill me.
|
|
|
|
bmwguru
|
DEC 26, 02:07 PM
|
|
| quote | Originally posted by megafreakindeth:
as for taking the motor out of an mk4 you may have extra mounting problems due to the crappy dogbone style mount with the two side mounts. [QUOTE]
[QUOTE]Originally posted by megafreakindeth:
are you planning on using the vw engine management? i think it would be kinda funny to drop a fiero off into a dealer and have them code the control modules for you.
[QUOTE]
[QUOTE]Originally posted by megafreakindeth:
as for 12v not making power, ive seen mk3 12vs with cams and intake/cat back running mid 14s which isnt something our v6 can do. the 24v is a sweet one but i didnt think it would be swappable due to the engine mount configuration.
as for size id have to say the vr6 is prolly the same size length wise, mabye at the most an inch longer but with the head and manifolds off it really is a tiny engine. rock solid too i dont think they have mechanical problems i sure havent seen any. |
|
I chose the mk4 because of this mounting arrangement.
I do my own coding and programming. I own a German only repair shop and have all the factory laptops. The fun part would be to show up for Waterfest with a VR6 Fiero. They'd kick me out.
The 12v can make more power than the 24v for 1/4 of the price. The 24v technology is still expensive, but in a few years, it will be making tons of more power than the 12v for a more reasonable price. The 24v mounts the same as the AFP 12v . The VR6 had issues with the timing chains. They should be replaced every 100,000 miles. That is why I am doing all the needed maintenance prior to install.
As the swap goes on, I welcome anyone to stop by my shop and take a sneak peak at it.
Dave[This message has been edited by bmwguru (edited 12-26-2007).]
|
|
|
|