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AARON ROBERTS 715HP on 16psi and 98 octane pump Fuel!!!!!!

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20bkombi Wolfsburg Wizard

597 posts · joined Mar 2009 ·

#778887
Thanks Guys and gals, and Troy for the pic's.
I've been a little busy lately in the shed. It was time to fit bigger tyres, this ment moving the spring plates inboard 75mm and an entirely new air bag
arrangement inboard of the chassie, modifying the trailing arms, brake lines, thottle cable, radiator pipes, barrel cooler pipes, 1 fuel pump, filter and lines.
Oh the oil cooler lines and all the wiring that you forget thats under there.

So much work just for 50mm more tyre each side. The tyres are Micky Thompson ET Street radials 275x50x15, which measure 295mm o/a not like my old
235x60x15 that measure 235mm o/all.

I didn't think how good it would look with such big rubber, i was thinking more traction, more traction.
This brings wheelie bars to to mind. So i borrowed next doors to see where i could mount them.
They are just sitting there in the photo.

The exhaust has an electric butterfly mounted near the rear of the race pipe,(4''). The standard exhaust no longer goes forward around the transmission
and back. Now is comes straight off the race pipe near the turbo using 3'', under the scatter shield (bellhousing) 90' in to a 20''x 11''x 6'' tri pass muffler
exit through 4'' tip. 800mm of pipe in total.

This means i have 2x 4'' exits and 1x 3'' wastgate exit. The ability to have full power without excessive back presure and only have to change
sparkplugs on race days.

Now i'm working on a new shifting system.

While Troy is moving house his lathe is being stored (used) in my shed. First job done, machine alternator pully central, second job?????
AARON'S SPEED SHIFT AUTOS
Specialising in Vw automatic transmissions, differentials and torque converters
Stock or modified to suit your application (street, drag, off road)
Ph 0402 233 027

typethreeking Wolfsburg Wizard

621 posts · joined May 2008 ·

#778929
hey aaron, weres the pics of the first lathe job
BEING ASPIRATED FEELS GREAT BUT BEING BLOWN TAKES THING TO A WHOLE NEW LEVEL....

typethreeking Wolfsburg Wizard

621 posts · joined May 2008 ·

#778968
BEING ASPIRATED FEELS GREAT BUT BEING BLOWN TAKES THING TO A WHOLE NEW LEVEL....

typethreeking Wolfsburg Wizard

621 posts · joined May 2008 ·

#778970
BEING ASPIRATED FEELS GREAT BUT BEING BLOWN TAKES THING TO A WHOLE NEW LEVEL....

typethreeking Wolfsburg Wizard

621 posts · joined May 2008 ·

#778972
BEING ASPIRATED FEELS GREAT BUT BEING BLOWN TAKES THING TO A WHOLE NEW LEVEL....

typethreeking Wolfsburg Wizard

621 posts · joined May 2008 ·

#778974
BEING ASPIRATED FEELS GREAT BUT BEING BLOWN TAKES THING TO A WHOLE NEW LEVEL....

typethreeking Wolfsburg Wizard

621 posts · joined May 2008 ·

#778976
i have posted these for aaron so he can now comment on what he has done in the above pics
BEING ASPIRATED FEELS GREAT BUT BEING BLOWN TAKES THING TO A WHOLE NEW LEVEL....

20bkombi Wolfsburg Wizard

597 posts · joined Mar 2009 ·

#778988
Thanks for the pics, the first two are of the alternator pully which never ran true. now the v groove is a bit deeper but now centre.

The other is of the gear shifter bushes and short shift modification for the new rod system, no more cables (yay!!!).
AARON'S SPEED SHIFT AUTOS
Specialising in Vw automatic transmissions, differentials and torque converters
Stock or modified to suit your application (street, drag, off road)
Ph 0402 233 027

20bkombi Wolfsburg Wizard

597 posts · joined Mar 2009 ·

#781921
Well Bec and I were ment to be at a car show today for a sunday cruze and some dyno fun but,
I went out last night to check every thing was right. While under full throttle 3rd gear the boost went sky high!!!!! 20+psi
So i took some data the next run and wound the air reg down to 0 = 10pound (spring presure only).
Straight up again, and i couldn't back off quick enough, then it did two big back fires and stalled.
The problem with such a big turbo is when is comes on it does so, MEGA quick. This high boost causes high heat on these
tiny seals and they weaken, causing then to bend or break.







The fault was a rip in the wast gate, which controls turbo presure.
AARON'S SPEED SHIFT AUTOS
Specialising in Vw automatic transmissions, differentials and torque converters
Stock or modified to suit your application (street, drag, off road)
Ph 0402 233 027

LIFE IN THE LOW LANE All people have the right to stupidity but some abuse the pr

2,534 posts · joined Mar 2007 ·

#781940
so rotor housings suffer any damage?? Rotors ok ? Or just some new seals etc etc??
ACCEPT THAT SOME DAYS YOU ARE THE PIDGEON AND SOME DAYS YOU ARE THE STATUE

Alder Outlaws VW Racing - check it out on fb!!

20bkombi Wolfsburg Wizard

597 posts · joined Mar 2009 ·

#782062
Sad to have to open it up. Looking at the wear it was not even 1/4 of its life.

This would be the cleanst engine i have pulled down yet.Every thing is just as it was 3 years ago. I will replace the corner and side seals with after market ones, as there were only
mazda (i hate that word!!) items at the time of the build.
This means i will have (South Coast Rotary) SCR 3yr old apexes, new SCR side and corner seals. All with new factory springs.
All up $450
AARON'S SPEED SHIFT AUTOS
Specialising in Vw automatic transmissions, differentials and torque converters
Stock or modified to suit your application (street, drag, off road)
Ph 0402 233 027

LIFE IN THE LOW LANE All people have the right to stupidity but some abuse the pr

2,534 posts · joined Mar 2007 ·

#782063
Well kinda of a cheapish rebuild of sorts considering the punishment it gets every now and then ....
ACCEPT THAT SOME DAYS YOU ARE THE PIDGEON AND SOME DAYS YOU ARE THE STATUE

Alder Outlaws VW Racing - check it out on fb!!

typethreeking Wolfsburg Wizard

621 posts · joined May 2008 ·

#782070
gee aaron, i wish i could pull my engine down after that happening and only spend that much, mine would be a pile of scrap i think if that happened
BEING ASPIRATED FEELS GREAT BUT BEING BLOWN TAKES THING TO A WHOLE NEW LEVEL....

colonel mustard Son of Jim - Creator of Good

2,829 posts · joined Feb 2009 ·

#782079
20bkombi wrote:I will replace the corner and side seals with after market ones, as there were only
mazda (i hate that word!!) items at the time of the build.

hmmm you and me both.

20bkombi Wolfsburg Wizard

597 posts · joined Mar 2009 ·

#782090
This is the 2nd wast gate diaphrame I have split in 4 years.

So, It will be changed every 2yrs from now.


from this



to this


to this
AARON'S SPEED SHIFT AUTOS
Specialising in Vw automatic transmissions, differentials and torque converters
Stock or modified to suit your application (street, drag, off road)
Ph 0402 233 027

11CAB If ya got it....Baja it

4,674 posts · joined Aug 2002 ·

#782091
WOW..... glad you labelled the Dril....... 😂
65 Meyers Manx
68 Country Buggy (KO 367)
68 Country Buggy (KO 669)
68 Country Buggy (KO 789)
68 Country Buggy (KO 815)
68 Baja Bug
76 Baja Kombi Twincab

20bkombi Wolfsburg Wizard

597 posts · joined Mar 2009 ·

#782093
Just checking youre looking, but it's a drill not a dril im a dill.😂


I use it for the sump bolts.
AARON'S SPEED SHIFT AUTOS
Specialising in Vw automatic transmissions, differentials and torque converters
Stock or modified to suit your application (street, drag, off road)
Ph 0402 233 027

colonel mustard Son of Jim - Creator of Good

2,829 posts · joined Feb 2009 ·

#782097
Hey Aaron, are they all genuine 20b bits? (i remember that the housings are... but the other bits too?)

20bkombi Wolfsburg Wizard

597 posts · joined Mar 2009 ·

#782343
Yep all factory 20b parts, only the dowells apex seals, and balancing of the rotating assembly.
But, all the springs and inner, outer oil control rings are from 5 different rotary engins for different reasons.



This is the twin plate clutch, will try and grind it on the lath.

AARON'S SPEED SHIFT AUTOS
Specialising in Vw automatic transmissions, differentials and torque converters
Stock or modified to suit your application (street, drag, off road)
Ph 0402 233 027

reub VWRX is gone...

2,054 posts · joined Sep 2002 ·

#782344
Dude, out of interest, what is the assembled length of a 20b?
Reub

20bkombi Wolfsburg Wizard

597 posts · joined Mar 2009 ·

#782349
600mm in from pully nut, to end plate.
And the g64-21 is 950mm

I think it would be to heavy for a beetle. What u think'n?
AARON'S SPEED SHIFT AUTOS
Specialising in Vw automatic transmissions, differentials and torque converters
Stock or modified to suit your application (street, drag, off road)
Ph 0402 233 027

reub VWRX is gone...

2,054 posts · joined Sep 2002 ·

#782350
🙂 cheers dude... Thinking you're right - unless mid mounted?

They that heavy? 130-150kg or so?
Reub

20bkombi Wolfsburg Wizard

597 posts · joined Mar 2009 ·

#782353
I think just the block is that. I'll weigh it and the tranny befor they go back in.

I've measured the notch and it fits with 100mm gap behind the front seats. (YOU CAN DO IT MAN!!!!)😂
AARON'S SPEED SHIFT AUTOS
Specialising in Vw automatic transmissions, differentials and torque converters
Stock or modified to suit your application (street, drag, off road)
Ph 0402 233 027

reub VWRX is gone...

2,054 posts · joined Sep 2002 ·

#782355
😂
Love your work dude. Can't wait to see vid of it out with the new rear bags.
Reub

20bkombi Wolfsburg Wizard

597 posts · joined Mar 2009 ·

#782364
This is now

Long way to go!

AARON'S SPEED SHIFT AUTOS
Specialising in Vw automatic transmissions, differentials and torque converters
Stock or modified to suit your application (street, drag, off road)
Ph 0402 233 027

LIFE IN THE LOW LANE All people have the right to stupidity but some abuse the pr

2,534 posts · joined Mar 2007 ·

#782484
Aaron like i have said before You are a machine!!
ACCEPT THAT SOME DAYS YOU ARE THE PIDGEON AND SOME DAYS YOU ARE THE STATUE

Alder Outlaws VW Racing - check it out on fb!!

typethreeking Wolfsburg Wizard

621 posts · joined May 2008 ·

#782487
hey aaron that empty engine bay looks like my car...haha
BEING ASPIRATED FEELS GREAT BUT BEING BLOWN TAKES THING TO A WHOLE NEW LEVEL....

vassy66T1 Wow ... are U reading this?

2,120 posts · joined Jun 2003 ·

#782508
Hope all goes well on the rebuild Aaron. 👍

20bkombi Wolfsburg Wizard

597 posts · joined Mar 2009 ·

#782625
Thanks. The rebuild Won't be for a while, I have other work to get out the way first.
Alsow I want to do more on the ports.

The gear box will be getting pulled down this weekend to try some syncro
mods for better shifting.
AARON'S SPEED SHIFT AUTOS
Specialising in Vw automatic transmissions, differentials and torque converters
Stock or modified to suit your application (street, drag, off road)
Ph 0402 233 027

13b type 3 Casual Dubber

42 posts · joined May 2009 ·

#785260
LIFE IN THE LOW LANE wrote:Aaron like i have said before You are a machine!!
Yes he sure is but that machine has no stop or pause button on him.


next week at the lastest i rekon and it will be driving down the road again.


determination🤓