Post
by Tweety » Thu Nov 03, 2011 5:42 pm
Err..... thanks for the cryptic puzzle bennie- taking advantage of my age eh? I do know WTF means and that's it!!lol oh, and lol!!!
As for the exhaust I didnt consider at all chroming the whole exhaust but now that you mention it? it would be done in winter cause the sun time is ride time....
Update:
I had thought the second throat of the new Weber was flooding the engine or too much air or had a blockage.
This morning I attended VW performance Centre in Croydon. Within 20 minutes they had assessed:
-that the weber was operating correctly but might need jetting
-that the fault was electrical.
-that they had rang an ignition specialist 5 kms away to ask them to look at the distributer which was also new. Something about "phasing".
I rode to the sparkies and it took them 3 minutes to ask me why a red wire was connected to the negative side of the coil. I told them it was the kick down switch, the only wire I didnt label when the VW donk came out- reason? because it didnt come from the engine- it came from the gearbox. But I should have labelled it positive!!! because it was on negative
The result was that everytime I throttled on to a point whereby the kickdown switch went on, the engine cut out. Charge? no charge.
Returned to vW performance Centre and dyno tune, carbie jetted correctly etc.
Dyno power output result was 76hp at the flywheel (74hp when new in a brumby) and 60hp at the wheels. Daniel told me the auto zaps a lot of power out of the engine. Would I be happy?
Well I had been putting 91 unleaded in the tank and wanted it tuned to that fuel. On the way down I achieved 24 mpg (VW engine 21-22mpg) and that was with the wiring fault and a bit of towing the van for testing. I refuelled to return home through the city, then up the freeway to Euroa. I found that the trike now wants to sit on 120kph so I have to watch it, also in traffic when the transmission kicks down the front wheel wants to go airborne - nice 'wants to boogie' feeling. Above 4000 rpm the engine has a howling note through that exhaust, really pleasant sound. Acceleration is very satisfactory for me.
And the economy on the way home? 29mpg. 190 kms 18.4 litres 9.7L/100kms
VW 22 mpg 13L/100kms (range for 50 litre tank) 384 kms
EA81 29mpg 9.7L/100kms (range for 50 litre tank) 515 kms
or 30% more economical. or $20-24 a tank savings.
By selling the vW engine and the cost of this conversion ($2000 out of pocket overall) it will take, at the rate of my current kms/year around 4 years to recoup the difference.
The towbar now has an added support from the front of the trike ladder bars for peice of mind with the heavy van. Ready for a holiday.
The real test was the mountain from Euroa to Strathbogie. A section of about 2 kilometres. The VW at the steepest bit would slow to 60 or 70 kph, into second you could only maintain that speed to the top. The ea81 slowed to 70kph but at a point further up the mountain, kickdown to second nicely and accelerated to 105kph when I backed off, slowed back to 80 and did the same. ooooh nice!! Could have easily kept it in second and rocketed up but I'm a pussy!
Worth a plug : VW performance centre Croydon Vic 039 725 5366 great service, great coffee,
[SIGPIC][/SIGPIC]Tweety trike- EA81 (full reco 2014) 32/36 weber, SPFI manifold, 9.5:1 CR, VW auto.