twin IDFs???
 

I need some feedback.

My current engine is a 1596cc T1. Roughly Engle 100, 050 electronic ign, 8.1:1 cr, stock polished valves, mild port and polish, 1 3/8" single quiet pack.

The last few weeks I have been trying to install and tune a single, centre mounted 36IDF carb. I have been suffering with constant vaccuum leaks.

I have two options - 1) re-install the 36DCD and be happy with what I had or 2) go for a twin 36IDF setup.

I just feel that the twin 36s will make too many revs available when I drop the foot. She still has a stock crank.

Cars is used as a street car. Not a daily driver, but also less than a weekend car. Daily transport, very little traffic.

Your views????

IMO, go duals and get a rev limiting rotor if you're worried about high revs.

not to worry, have run out of patience with the single. Using my nice new parts for the 48s, but putting in 36s. The inlet manifolds are ported for a different set of heads... I dont care right now, the car has to run. Will take it apart once I get the cash to do it properly. At least I got the parts lying around.

Hey, Tony Z, nice to see someone else in Cape Town.

Cheers

James
'66 Type 4-engined 912

James

someone else in Cape Town you say. Drop me a mail sometime to my address.. Tony__Z@hotmail.com

Hummbug ran first with a single 32/36 Weber DGAV, then dual Dellorto 36 DHLA's then with dual 40 DHLA's using a stock crank. Number 2 main journal was pretty ugly after only 38k
miles, and all the bearings, including the rod bearings had most of the babbet wiped away.

I didn't have the guts to turn it over 5000 RPM.

The 36's were WAY too small, and always ran lean, but Hummbug's got an 1835 with a bit larger cam. Yours should run good on dual 36 IDF's being a 1600. Just don't go past 5000 revs,
and don't expect over 50K miles before a rebuild.


Yetibone