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Humpty's finally got off his arse and begun a real drag car project!
humpty - February 3rd, 2008 at 02:36 PM

Thought you guys might get a kick out of this..... Some of you guys know I have been wanting to do this for years and I've been collecting bits for the 'BIG-ONE' for years.... But to give myself some turbo dub experience I allowed myself to be talked into doing this to the POS60.....

http://www.postimage.org/aV2e_co0.jpg

This project had been inspired by the TAT and others....

If you want to see the build up to date, check it out on the Melburg...

http://melburgluft.com/viewtopic.php?t=56&postdays=0&postorder=asc&am...

Later...


humpty - February 3rd, 2008 at 02:45 PM

Also.... Im looking for one of those dual can/barbed dizzies off LBugs....

Can anyone help?

Looks kinda like this....


hypo-vw - February 3rd, 2008 at 10:33 PM

looks to me like you are about to have heaps of fun with this new project . looks good so far ... keep us posted with pics humpty .
I will check on that dizzy for you , I think I might have a couple in stock . Do you have one with a buggered vacuum diaphram , or dont you have one at all . I do have a new replacement diaphram in stock also . Wayne .


humpty - February 3rd, 2008 at 11:47 PM

I'm looking at using that dizzy as a 'boost/retard' deal on the POS60. By leaving the inside (retard) port open to atmosphere and connecting the outside port (the black one in the pic) to a manifold source, I should be able to use this to retard spark under boost.... At least thats how I think it will work.... But I have bee through my stash and I don't think I have one.... I still need to dig through my brothers stuff.... But I do need to get one this week, otherwise I'll be using the 09 I have....

And thanks for the support....


Stanley - February 4th, 2008 at 07:48 AM

Good stuff Humpty.

Before I was running the sigma dissy I used the 009 and modified it so it would only see a max of 24deg. I have the sigma dissy set the same. Although the thought seems to be the more boost you run you can even bring it back to 21deg. I haven't tried it yet but will soon.

cheers


humpty - February 27th, 2008 at 07:29 PM

Got a question for those in the know.... Should I fit a muffler?

The car in question is one of those "bitsa", no budget specials, so loved by the anti establishment these days.... It owes sweet FA, runs a IHI RB5 VF11 turbo (still need to source a carbon seal for it... Know where I can get one??) and a home brew draw-through zorst with a side draft weber.... The system is all stainless (cause thats what I had) and the engine is POS 1835 that is basically stock... Will fit HD single springs and solid shafts very soon....

http://www.postimage.org/Pq1J06m9.jpg

My dump pipe is made from 3" mandrels and pops down behind #4, near the oil pump cover.... So.... As the title suggests, my question is "Should I fit a muffler on this baby, or will the turbo be 'enough muff' for my streeter?


Dero - February 27th, 2008 at 08:04 PM

Stuff the muffler, just have some fun... :P

Im gonna be back in Perth soon, I will look forward to seeing this one!!


1303Steve - February 27th, 2008 at 09:40 PM

Hi Humpty

Old school but it should still make your sphincter tighten. Maybe Fred at Turbo Logic in the Gong can help.

Steve


dangerous - February 28th, 2008 at 06:30 AM

Stanley has no muffler.
But also uses a short 'race pipe' for the track (90 degree)


LIFE IN THE LOW LANE - February 28th, 2008 at 06:45 AM

Driving it on the street??? Maybe just put a super trap on the end of the pipe. that way it's easy to remove for racing.


Stanley - February 28th, 2008 at 07:29 AM

The turbo will quieten it down substantially. As dave said I have no muffler and it's relatively quiet until you put your boot into it.
The beauty of a volksy is no one suspects anything. I've had cops follow but to them it's a standard old slow volksy....:starhit:


humpty - February 28th, 2008 at 08:28 AM

Thought I had better show you guys the car.....

Pre yellow sticker....

http://i27.photobucket.com/albums/c181/Humptydub/455172384_e203de871b_o.jpg
Back on the road.....

http://i27.photobucket.com/albums/c181/Humptydub/IMG_3250.jpg
http://i27.photobucket.com/albums/c181/Humptydub/IMG_3244.jpg

It looks a little old school now, so I thought I'd chuck in the turbo....:spin:


dangerous - February 28th, 2008 at 08:41 AM

Lookin' good there Simon!
See you CAN work with white (cream)!
Very 'artsy' photos.
How did you go with the ERCO wheel bolts?(combination of parts)


Stanley - February 28th, 2008 at 11:16 AM

very nice...nice stance to


humpty - February 28th, 2008 at 06:06 PM

Quote:
Originally posted by dangerous
Lookin' good there Simon!
See you CAN work with white (cream)!
Very 'artsy' photos.
How did you go with the ERCO wheel bolts?(combination of parts)


Cheers Dave.... I ended up using 60º taper wheel bolts with ball seat adapter washers.... And it looks like they have 'bedded in' a bit now too...

Also took out the 4" beam and fitted my 2" number in.. The adjusters are set at the stock height with drop spindles and she rides so nice!.... But I might drop it down a little all-round once she's back on the road....

And white seems to work better for you.... Or is that cream?:no:

Quote:
Originally posted by Stanley
very nice...nice stance to


Cheers Andrew.... Glad you like....


GTMac - February 28th, 2008 at 08:41 PM

Love the stance of this car, would love to see it when hit in the guts and the rear squats. Good stuff. :lol:


humpty - February 28th, 2008 at 11:38 PM

Cheers guys.... Thanks so much for the comments.... The ol'POS is slowly coming together, but as I go, I find I still need a few things.... Does anyone out there have a twin inlet banjo fitting for a DCOE Weber?... I have a twin outlet fuel pressure reg and thought it safer to use both lines out instead of blocking one off.... And two lines into the carb will help more fuel get there anyway...


Turbo54 - February 29th, 2008 at 08:42 AM

Keep it rollin on Humpty,
Looks like a load of fun. As said the turbo will chop down the noise but I am going to run a muffler on mine. Mine is pretty free flowing and tucks up under the passenger guard. It's a magnaflow. I think if you were pulled over and could talk them around the turbo you would still get picked on for no muffler.
T54


humpty - February 29th, 2008 at 06:40 PM

Quote:
Originally posted by Turbo54
Keep it rollin on Humpty,
Looks like a load of fun. As said the turbo will chop down the noise but I am going to run a muffler on mine. Mine is pretty free flowing and tucks up under the passenger guard. It's a magnaflow. I think if you were pulled over and could talk them around the turbo you would still get picked on for no muffler.
T54


Yeah.... My thoughts exactly.... The local plod are onto this car already.... do I really need to give them many more excuses to sticker me?... So now I need to track down a good used muffler/resonator.... Off to the performance shops I go.... Alway on the scrounge...:crazy:


humpty - March 17th, 2008 at 09:06 PM

Latest news fellas.... Got bugger all done on the car over the weekend.... Went lawn bowling on Friday night... Started at 6.30pm and finished at 1.00am!!! Fark it was fun!.... But after many beers and little food I was trashed the next day.... I didn't even make it home.... I'm way too old for this shite....

Anyway.... Did some on the zorst tonight... Pretty much done actually.... Just need to make up the fillets for the dump pipe flange, make the muffler support bracket and then TIG the whole thing up....

And here's the result of tonights efforts....

http://www.postimage.org/PqqEYIi.jpg

http://www.postimage.org/aV13KFci.jpg

PS:.... That muffler I got from NZ it bloody awesome!


1303Steve - March 17th, 2008 at 09:42 PM

Hi

That looks really neat.

Steve


Stanley - March 18th, 2008 at 07:03 AM

Nice work humpty....be prepared for it to develop some heat though.
I had to put some heat proof tape in areas and I still ended up with some paint bubbling on the rear apron and deck lid.

Cheers


humpty - March 18th, 2008 at 08:27 AM

Quote:
Originally posted by Stanley
Nice work humpty....be prepared for it to develop some heat though.
I had to put some heat proof tape in areas and I still ended up with some paint bubbling on the rear apron and deck lid.

Cheers


Yeah.... I thought as much.... Might look at a pumpkin bag as well.... Development never ends with these things does it?!:lol:


Turbo54 - March 18th, 2008 at 08:36 AM

Humpty it looks really neat. Did you look at going through the side wall in the bay out to under the guard? That way all the heat is kept out of the engine bay an it would have less big bends.
Just a thought.
T54


humpty - March 18th, 2008 at 08:46 AM

Quote:
Originally posted by Turbo54
Humpty it looks really neat. Did you look at going through the side wall in the bay out to under the guard? That way all the heat is kept out of the engine bay an it would have less big bends.
Just a thought.
T54


Yeah.... I did think of that for a bit..... And now you have me thinking about it again!... Damn it!:lol:... With a muffler like that, I could run the zorst straight down the inner guard and out the LH rear.... The I guess I could mount the (future) oil filter under the apron..... or somink...


Turbo54 - March 18th, 2008 at 10:03 AM

I run a oberg (will post pics soon) and mounted it directly to the deep sump under the oil pump. loads of room and when you drop the oil it is all in one area.
;)
T54


Stanley - March 18th, 2008 at 01:37 PM

Although I have some under bonnet heat it runs quite cool. I also have stand offs which are a must. My late model deck lid also has the vents which help.
My new car will have a scoops in the side windows funneling air into the engine compartment and fan housing.


Joel - March 18th, 2008 at 05:17 PM

humpty with the DVDA dizzy im playing round with them on my blown bug, got one on its way shortly

connecting to the manifold like u said will retard on boost like u want but the prob is that on closed throttle the manifold vacuum will give u full advance espcially rolling down hill, it will p probably backfire and fart like crazy due to no fuel and full advance

that sort of setup is more for blow thro where the vac adv is connected to a port on the carb above the throttle plate so its only seeing boost when the throttle is open and carbs under boost pressure

to make it work on draw thro u would need a 1way valve so its only seeing boost and not vacuum

theyre pretty hard to find
the only bugs they were ever fitted to were 71 Sbugs and the dealers were instructed to remove them
a few kombis had them but replacement cans are hard to comeby so most ppl remove them

GL with the project tho
trust me forced induction is addictive


humpty - March 18th, 2008 at 11:10 PM

Your are right Joel.... The advance control is an issue.... Thats one of the reasons that only the retard side of the diaphragm is used, and as you say the vacuum can be controlled with a one way valve.... They are available.... Low-Budget Racing sell them and I think Rancho Performance does too.... But I have found a couple of low pressure valves to try in my set-up... Some cars have one-way valves on the carbon canister and there are also valves used in windscreen washer set-ups.... I have a few others too... Will try them all out....

As for the POS60 progress.... I tacked the pipe together today and trial fitting it tonight (After picking up a GTB Subi front cut for Seagull) and the pipes are a good fit.... With a little tweaking it'll be perfect... I'll have a go at it tomorrow and sort the final bits.... This weekend the zorst should be done... Last few things to do are the fuel system, the carb brace and the final bolt up....

Once she's running, I'll see what I can do about the air cleaner issue....


1303Steve - March 18th, 2008 at 11:23 PM

Hi

I think fish tanks use one way valves. You could always hock up a solenoid to the dizzy base plate or even a vacuum dash pot like some Jap cars used.

Steve