Mythbuster: continuing project thread of my 1303 '75

[typ4boy]

That 911 fan will never work........

[Wally]

Originally Posted by typ4boy

That 911 fan will never work........

Yeah, almost forget that one.
Also: it will rob a lot of power. Dyno showed otherwise...
Also: the horizontal fan will throw its belt... never happend

[Sandeep]

Awesome pics Walter .... especially the ones dealing with your restoration. Just the motivation I need to continue with my rustoration

Looking forward to your video of the running motor and some dyno sheets

Sandeep

[Wally]

Thanks Sandeep!
I did deliberately put those horror pics up just for those how still have to do all the hard work and show you that my bug was once a 'basket case' too

Especially for you I made a small vid of the first (well, second) start of the 2,2 turbo engine, partly finished. Its nothing special and one of many on yourtube of "I started my engine for the first time, hurrey"
But you asked for it
http://www.youtube.com/watch?v=EANvmzSAqLc

To run her in, I did something 'terrible' and drove straight to the track day that was today
It really was the first time the car stood on its own wheels for almost 3/4 of a year and the first time I could try-out the new gearbox (G50).
Let me tell you, the G50 shifts beautifully! Very light and easy. Bit long, but its a factory shifter after all.
Engine still had an oil leak behind the flywheel, although last night it seemed leak-free...probably therefore the clutch slipped some when the turbo cam in a bit sudden, but on the track today we (Marius has the blue oval with a tuned type 4 2.0 n/a engine) surprised many cars with our little bugs.

[oasis]

Great thread. I always loved your cars. Nice to get an education along with it, too! ... plus I finally get to see the pics (work computer rejects sites like photobucket). Thanks!

[Sandeep]

The engine sounds mean ! How does the drive compare to the old 2.0 with the 915 ? With the bigger displacement, you should have more torque to turn the gears for the G50 (but you knew that already )

Datalogs from the S60 ? How about some track video ?!?! I should really be working on my car instead of spending time on the computer ....

Sandeep

[kuleinc]

I love your car...

[Wally]

Thanks Oasis, Kulein

Originally Posted by Sandeep

The engine sounds mean ! How does the drive compare to the old 2.0 with the 915 ? With the bigger displacement, you should have more torque to turn the gears for the G50 (but you knew that already )

First impression is that the cam may be a little large for this combo. I have more duration (163) and 114LC than the turbo webcam 119. Throttle respons with the stock cam was better still, but it does come in much harder when you fully depress the throttle, even at only 7 psi boost I had set it on.
Unfortunately then the clutch slips from the oil leak behind the flywheel, so the engine must come out again. Very frustrating...
The cam is therefore difficult to judge by now, but large LC´s may give less cylinder pressure and I am not sure if that is good yet. Like I noticed on STF, webcam has decreaed the LC´s of the Web 119... maybe they or their customers didn´t like the negatives over the advantages of running large LC´s... Thinking out loud, maybe large LC´s are better for engines that run high CR on turbo engines...
But maybe we´re going too deep here

The CHT´s were very good btw. Nr. 3 showed just a tad over 350F when it was full boost hauling down the straight at the track. Oil didn´t even get over 85 degrees Celcius after half an hour full racing (I didn´t really spare the motor...).

Datalogs from the S60 ? How about some track video ?!?! I should really be working on my car instead of spending time on the computer ....

Sandeep

hey, you overasking here! Well, actually somebody (hey white german girl ) promised to come and tape the track day, but she didn´t show up...
Datalogs were boring again (IAT 21 degrees Celcius at a 15 degree day..) and I still havn´t been able to save a log while at the track. Since data is gathered continiously and I drove 2 hours back fron the track, previous data is autonmatically deleted. There is a on-off switch to be made, but I still havn´t gotton to that.
Long story short, nothing to show you ... You ´ll have to take my word for it

[petevw]

Still can't believe it looked like this:



Good work Wally!

[typ4boy]

Originally Posted by Wally

Yeah, almost forget that one.
Also: it will rob a lot of power. Dyno showed otherwise...
Also: the horizontal fan will throw its belt... never happend

Wally, the myth buster.

[Wally]

This is what a track day does if your having fun...



(the curved exhaust exit is because of noise restrictions...)

[Wally]

You won't believe this...

I have a slight clutch slipping problem if the turbo came in hard (and it was only 7 psi) on the track last friday.
Pulled the engine (again...) and found a dry bell housing behind the flywheel.

So I looked at the clutch disk more closely:



Indeed: the springs hit the flywheel and caused some part/not-engaging on one side...
I probably got punished for using a VW disk with a G50 center which also gives the G50 springs (?) (although Kennedy should have known this too I suppose)....who else is crazy enough to try this huh?
Problem probably easily solved by turning down the inner part of the flywheel a bit to clear the height