Speaking of oil feed tube...

Wally, sorry if you've put that info somewhere, but which oil do you use in your engine?

I'm asking because there's much debate going on about zinc levels in modern oils. I'm reading some ricer forums and they're speaking about Brad Penn grade 1 20w50 as the best choice. Jake Raby also prefers that oil. Maybe we should make "oil thread" on GL...
:)

I fully agree on the Brad Penn 20W50 as I also run the GT1 'racing green' in the engine. Its still called Kendall here though ;)

But please not another oil thread... enough of those already.

Hi Walter,

I noticed a fitting on your sump extension ... I know which DS pump you are running :cool: so am guessing that this is the return for your turbo ? If not, what is it for ? Are you still using the Tilton scavenging pump ?

I'm trying to eliminate as many support systems as I can in my build right now, and this looks like a great solution for the turbo drain ... considering the 38mm scavenge circuit in the DS pump.

Unfortunately, I also have to upgrade the DS pump feed from a -8AN (12.7mm ID) to either a -10 (.625" / ~15.9mm ID) or even a -12 (.69" / ~ 17.5mm ID). More fittings .... more hose :mad:

Sandeep

Of course :D

Its a -12 hose I use, same as I use for DS pump feed from the front trunk. Better safe then sorry. I bought the Tilton, but have still never even used it...
http://i174.photobucket.com/albums/w...2.jpg~original

Just today I did some work making the wastegate feed tubes from both pipes and still keeping them separate. Hope to have some updates at the weekend.

Very happy with the progress from today.

http://i174.photobucket.com/albums/w...derbouw010.jpg

http://i174.photobucket.com/albums/w...derbouw003.jpg

http://i174.photobucket.com/albums/w...derbouw005.jpg

Only downpipe + silencer to sort, but the silencer from ebay still needs to arrive...

excuse me if I got it wrong, but is the waste-gate gonna have it's own silencer to the left, and the main silencer is going in the old position? Couldnt the WG dump in the same exhaust pipe?

Yep, each its own silencer.
Yes, could, but (most important in my case) that would probably be too loud as the exhaust silencer will be 3,5" and the wastegate doesn't have the turbo as a "pre-silencer". Most tracks get really difficult with noise levels...
Its also better to keep it seperate for the least possible backpressure in the downpipe.
Lastly, there was probaby going to be possible ground clearence problems routing it back into the downpipe exhaust.

First start up after too long a time:

http://www.youtube.com/watch?v=_wk-2XcIbx0

Oh! hell the beast is back. More vids wally. Ah! just a question, how much horsepower do you intend to make this time?

Nice job Wally! I´m anxiuos to see what it does on the track and dyno! :D

Very nice Wally!

:D looking/sounding good

Good to se that she has a pulse once again. Nice work.

Tnx guys! Just a new lambda bung and the big turbo silencer and I can drive again :)

No intentions really. I hope the same or a little more at less boost. No telling really. I am more interested in how much further boost threshold will be. Or my own benchmark: at what rpm 15 psi will be reached. All logic says about 1000 rpm further on. Anything less will be a bonus and/or to be adressed to the TS :rolleyes:

Interesting will also be how the heavier CB 650 valvesprings will go along with my stock 'non-straight-cut' cam gear and stock single thrust cam bearing...

Do you have a spring scale? I am interested in your old and new spring data. (install height, poundage)