I love dark green Porsches
 

My Turbo look is for sale......

Is that an M491?

[QUOTE=krasuskyp;4674174]Welcome Dave! Ladies & Gents, may I introduce you to my longtime bud from the Audi circles Dave Dawson - known for amongst other things his ~ 400AWHP urS4 and some monster 'commuter' A4 1.8t from hell. MADMAN extraordinaire 8-). It's kinda funny here Dave, talk of high psi is somewhat bewildering - I chuckle to think of my former 22.5psi or the, what, 26+psi you're likely running in your i5-20vt, via K26 hybrid. Different' birds these things are.

Thanks for the intro, Paul... but a coupla corrections. The little 2.2 liter 20v I-5 Audi I built makes 442whp/475wtq... runs a tube header and a Garrett GT30R turbo. It is a 4000lb car that has run a 12.4/113.35 quarter mile on 24 psi boost (pump fuel). This is all my Centerforce clutch could allow on a hard launch... but I typically run 30psi (still pump fuel). This is a fun car that surprises a lot sports car owners... including P-cars.

Still... it ain't no 930!

I also have a pair of the Urquattros. I'm a true gearhead, and I build my toys myself.http://forums.pelicanparts.com/uploa...1242846335.jpg

Turbo look...
 

No, sorry DDDD, just a Carrera with Turbo flares and 9" Fuchs.

Dave,

Didn't this car have a slightly dented rear fender? What did you do to it?

Yes, it did. PO showed me the location of the damage. It was a sheet metal repair followed by paint work. The job was very well done... no signs of work except when you see fresh undercoating in the wheel well.

Yeah love the car. good luck with it!

Welcome to PP!

89' 930 is most sought-after 930 due to 5-speed tranny. Clicking sound is 99% worn BOV seals, easy fix. I also changed mine, here is a link: http://forums.pelicanparts.com/porsche-911-technical-forum/71370-changing-930-dump-gaskets-pictures-galore.html

But worn seals usually won't limit the boost. You might want to lift the intercooler and see of the O-rings are pinched and you're leaking boost. Also, check plastic injector stacks for cracks.

Best way to check the leaks is to pressurize everything south of CIS with shop air to 0.7 bar or so and listen for leaks.

Regards,

Thanks, Beep. First, I want to clarify. This is really a bypass valve and not a blow off valve, correct? If it is a BPV, then it certainly could have a negative effect on achieving max boost.

Your point still stands, however... I'll need to make a tool to pressurize and check for leaks. BTDT with my Audi experience, and will be a good place to start.

Sorry, I should've been more specific. It's a recirculating rebuildable bypass valve with rubber gaskets. Clicking is the piston hitting the end lock.

Regarding pressurizing, you would need a disc with a nipple which you can jam into one of rubber hoses between turbo and CIS. Then slowly turn up the pressure. You might hear hissing noise somewhere underneath the intermediate intake.

Funny you mention Audi. I've just spent this evening trying to make my UrS4 behave on boost...it was misfiring above 0.7 bar. I finally ripped out the OEM ignition coils/ignitors and replaced them with five 1.8T coils which solved the problem. It felt as I gained 100hp. :)

17" Lindseys
 

17" Lindseyshttp://forums.pelicanparts.com/uploa...1242863380.jpg

Scroll up... take a look at my UrS4 engine. I run the 1.8t coils as well... works nice.

Dave

I saw it. Nice headers! But ignition cover looks like OEM one? I've just cobbled together some 1.8T coils and voilá, it runs like a champ!

Actually, I hinted one guy that he could run 1.8T coils on his EFI-converted Porsche. He's done it and he is very pleased. But he's running them on N/A engine.

Welcome to PP. Beautiful Car.

Congrats on the car!

If I was looking for a 930 wheel and tire combo that was bigger than stock but not too big with no rub issues, I'd go with 8.5 and 10 x 17 wheels with 225/45 and 275/40 tires.

That's a good choice! I like 16s for originality, but prefer 17s for a bigger selection of tires. The Jeff Alton Fuchs are beautiful wheels and the centers are upsized to match the 17" diameter. I've had the 17" Rotas on my 930 before and while they look nice, I prefer a better built wheel. Kinesis Supercups are gorgeous as are the FRH/Hartmann wheels I currently have on my 86 930. One thing that really is a must on these cars is a nice deep lip. That just accentuates the width of the rear fenders.

Oh snap! Goran's got a urS4?!?!?

Dave, I was gonna say you were in good hands w/ Goran's reply (beeb beep) as he's one of the more knowledgeable, experienced, and respected nutters amongst us (IMO from being here the past 2yrs)... and then I learn this? Man oh man, are you two 2 peas in a pod!

Davey, I said "~ 400awhp"... c'mon now, what's a 10% fudgefactor amonst friends heh heh. Your tq # is astounding btw. I recall your running 12s. Was it you that nuked a torsen rear diff @ the strip or someone else - forget - I'm not in the urS circles as much since replacing mine with Alumibiatch heh heh. Plus, spending time here is muuuuuuch more fun :D

Goran, love to hear about your urS sometime. Those 1.8 coil conversions are def. cheap but they can be a finicky little bastids too. Keep a bunch of spares, they seem to fail alot from what I've seen (tho Dave you've had good luck w/ yours). I just had my enginerd spacesuit making friend splice in new OEM units - $$$ but a 1x endeavor.

ANYwho... sorry to digress, just neat how great minds think alike.

Welcome to the Pelican forum.

The link that was posted on the BOV seal repair was done by myself to assist fellow owners.

We will have to meet up as the good weather is here, I am local and own an '89 car as well.

Yasin

NICE!

Dave, Yasin passes 'muster' - 500E fan, etc. Good taste in cars and his '89 is sick 8-)

Yasin, brace yerself! Heh heh...

[QUOTE=krasuskyp;4676172]Oh snap! Goran's got a urS4?!?!?

Was it you that nuked a torsen rear diff @ the strip or someone else - forget...

Those 1.8 coil conversions are def. cheap but they can be a finicky little bastids too.



Yup... killed the torsen rear diff, but not at the strip. Had to go back to the open version.

It is funny on the 1.8t coils. So many failures, but I have a lot of miles on mine and have yet to have a single one fail. I also have mine tucked neatly underneath the OE coil cover.