My 1300 twin port originally had dual heat risers.(they had been cut off to fit a single riser stock muffler).

I want to go to a single heat riser manifold and I want to know if single heat riser covers will fit straight on to the rear tin.

Because the cut out for twin risers on the rear tin would be bigger, will the single riser covers actually cover the cut outs? Or will I have to change rear tin also?

Regards,

Matt.

Matt,

I have some single heat riser covers you are welcome to try. Give me a holler or call round over the weekend if you want to have a look.

Thanks Jeff, that should sort it out once and for all. I'll post the result for others when I find out.

Tomorrow just after lunch would be good. Is that convenient for you?


Regards,

Matt.

do u need a single hotspot breast plate matt?
i got 100s of the bloody things

Matt,

After lunch will be fine.

Turned out the breastplate tin is different with twin heatrisers. Jeff was able to sort me out with breastplate & covers for single riser manifold.

Anybody want the Breastplate tin and covers to suit twin risers just give me a yell.

Regards,

Matt.

Lee,

This is what we have been talking about. Two heat riser tubes on each side. They came on late 1600 and 1300 twinport engines. I think the idea was to get more volume of flow, thus reducing the tendency to clog up with carbon.

Mufflers to suit are getting impossible to find.





Regards,

Matt.

this pics been getting a good run for its money lately

in the mid 70s to try and combat carb icing probs in colder climates vw introduced a new inlet manifold that had 2 sets of preheat pipes
the dealership bulletns i have call them twin hotspot and the old style single hotspot

in aus they were only fitted to the 76 flatscreen bugs and a handfull of the last 1300s apperently
Ive been around plenty of 75Lbugs nearly all with original engines and have yet to come across one with one so you wont see to many of them in existance

they also had to have a redisgned exahust, breastplate and manifold sealing plates as well

beat me to it matt,
stupid slow photobucket

Joel,

Do you use Firefox?

If so, there is a good plug in for photobucket you can find it here:

https://addons.mozilla.org/en-US/firefox/addon/10035

It puts an icon in the bottom right corner of your firefox window. When you click on it you can go straight into your photobucket account.

It also lets you right click on any image and upload it straight to photobucket. I've found it saves heaps of time all round.

Regards,

Matt.

saw a 74 1300 with that last week at my mechanics place... was a flatscreen drum brake model. crazy stuff. bad turning circle....

Yes the '71-75 1300 was the 'cheap' or 'budget' Beetle on the Australian market. In those years the Macpherson-strut, front disc 1600 Superbug S, and later the Superbug L, were the 'glamour' Beetles, and they got all the marketing and promotion. However VW Australia added a 'low spec' 1300 Beetle to the range, basically by taking the superseded 1500 swing-axle Beetle and putting front drums and a 1300 motor in it.

In 1974 the Superbug retailed for $2,938 on-road, while the 1300 was $2,699. Most Australian buyers chose to pay the extra $240 for the Superbug, as it sold better than the 1300 did.

Hi Matt
I didn't know such a thing existed...
I thought they were only on type 4 engines...
and I've never seen any mufflers like that...
looks like it was a good idea... as singles do seem to be clogging up these days... and its hard to tell unless you blow thru one end...YUK...
I've been trying to think what I could pour thru them to make them non cloggable?? rust free...
My original actually rusted right thru and was blowing exhaust over the fan shroud... Welding it up didn't help with the flow of hot exhaust thru it....

LEE

PS: WOW... I'm still learning about Beetles after 49 years of interest in them... My Dad had beetles & Kombis...

Quote:

Originally posted by Matt Ryan Lee, This is what we have been talking about. Two heat riser tubes on each side. They came on late 1600 and 1300 twinport engines. I think the idea was to get more volume of flow, thus reducing the tendency to clog up with carbon. Mufflers to suit are getting impossible to find. Regards, Matt.

What is he hard to get bit?
I have a muffler set up, the big rusty brown one, in the back yard with other gear.