more supercharger talk

[truckinwagen]

yeah, the mk1 had those issues, but the mk2 supposedly didnt.

I think it is just that the aftermarket gauge is not very accurate, the in tank pump and pickup looked good when I had then out, but who knows...

[Kantdrivefast]

I think MK1 GTIs had a similar problem with the fuel tank/pickup-pipe when turning hard left or something.  Would cause the car to run lean and even stall.

It was the mk1 cabriolets that had that issue.

[Powered by Spearco]

Yeah, MK1 for sure. I had a Rabbit that when turned hard to the right, it would chugg if the tank was lower than 1/2.

[truckinwagen]

I have scrapped the idea of using the alt I have and having a spacer machined in favor of a 16V alt and G60 alt pulley.

I have bought them and hopefully they will come in the mail soon.

I'm gonna put the car back together with the old parts tomorrow so I can drive it to school next week, and then do the swap next weekend when I have all the right parts.

-Owen

[Aki-76]

In Finland we have quite different project going.Base engine is na polo 1.9d.Turbochargers is Eaton M45 and holset He221w.

http://i434.photobucket.com/albums/qq68/Aki-76/kayttiksen%20osia/15022010758.jpg

http://i434.photobucket.com/albums/qq68/Aki-76/kayttiksen%20osia/15022010762.jpg

http://i434.photobucket.com/albums/qq68/Aki-76/kayttiksen%20osia/11022010755.jpg

[truckinwagen]

thats damn fine looking, I thought about the eaton, but with a cheap good condition G60 in my hands, I couldn't turn it down.

its  blast to drive, power on NOW! its gonna turn into a real handful when the boost goes upward of 20PSI

my biggest problem now is intercooling.
I cant fit the cooler I have, and I really like the super simple intake routing.
I have the adapter for the water/meth and will be playing with that, but it really is only going to be useful for WOT/high EGT situations because it requires a consumable.

I would love to get a long flow air/water intercooler to go right where I have the intake pipe now, but the added expense and complexity make that a hard sell.

not sure what I will do after the 58mm pulley, we will just have to see.

-Owen

[tomnik]

regarding intercooler I sourced 2 different ones.
I my case for old Benzes but might be interesting for you as well.
One is the right side of an AMG 600 bi-turbo the second one (not received yet) is also one side of a compressor Jaguar.
Cost is 150 EUR+shipping (from Germany) for each.
In case you are interested I'll send pics with measurements.

Tom

[truckinwagen]

well, I got another belt to replace the one squealing.
it kinda sucks that the belt only lasted a couple hundred miles, but I did abuse the hell out of it.
it ran too loose for quite a while(loosening issue has been fixed), it got diesel all over it, it got oil on it, and the pulleys are not perfectly in line.

the new belt($35) fixed the squeal! and it doesn't loose boost at higher RPM's
I will only have this belt on for a week or so, because I have all the parts coming to put the alt in line(finally) and with a six rib belt.

but the car was no fun to drive with the slipping belt, it would squawk like crazy at startup, and would only make 5PSI of boost before the belt would start slipping again.

now I can get the tires loose again!
man I cant wait for the parts to install the 58mm pulley!

-Owen

[truckinwagen]

so I have been running with the boost bypass open to keep the belt from slipping under the load of boost, and I noticed something alarming.

the past week I have been driving under 2500RPM in order to keep the belt from slipping.
with the bypass open I could rev higher than that, but I noticed that at 3000RPM the motor starts to miss.

almost like it has hit a wall, it wont rev higher than 3000, but not like the governor is limiting it, more like it is missfiring like crazy keeping it from revving higher.

I checked the pickup screen on the in tank pump thinking it was fuel starvation, but it was clean.

I cant find anything mechanically wrong.

any thoughts?

-Owen

[tomnik]

VTG turbo? If yes it sounds like the vanes too wide open.

Tom

[truckinwagen]

no turbo, G60 supercharger

[gldgti]

are you sure your getting air? bypass  the charger completely and see what happens

[truckinwagen]

charger is completely bypassed with the bypass open.
 I suppose I could pull the intake tube, but I dont really want to run without an air filter...(really dont want to run the charger without one)

-Owen

[rabbitman]

Maybe install a vacuum gauge right before the IP and see if you have a restriction. A boat pump installed there might work too, if it collapses at all then you got a problem, who knows how much vacuum it takes to collapse one though.........

[truckinwagen]

I might put a pressure/vac gauge there to see if I have vac/how much pressure my lift pump is really putting out.