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Good data point.

I had an extreme build C2 Turbo at one time (ports, exhaust, cams, Andial/Porsche S2 re-core IC, custom D-WUR, custom reversed BOV rigged for instant boost (.6 bar of cruse & .2 off idle, full euro injection conversion, EBC, Tial, RUF sways & rims, Cup suspension, bigger brake conversion, Speedster seats to match, cup clutch... ).

I went back to a K27-7200 for the very fast spool over the K29 and an early HF built on a 7006 hot side even though it would not hold full boost to redline if set at 1 bar. No problem at .85.

Yes the big turbo's pulled for ever. However I felt I was faster in real world conditions with the K27-7200 as it spooled so quickly and reached full boost so fast.
Old 10-24-2009, 02:39 PM
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I just order alu roll bar from Heigo. And Recaro Pole Position. So would like to put RS carpet and RS door panels too.
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TET930 996 TT 2003 X50 996 GT3 2004
930 1988 black on black -fast...
944 TURBO S 1989 WHITE/BLACK # 1 944 TURBO S 1989 #2
911 S 1970 Targa /ex porsche werks car!
911 S 1969 Targa (under rebuild)
Old 01-16-2010, 05:27 PM
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Quote:
Originally Posted by Tomy View Post
I just order alu roll bar from Heigo. And Recaro Pole Position. So would like to put RS carpet and RS door panels too.
I have the same parts in my car


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Roland

930 Turbo '81 Too many modifications to list
Old 01-18-2010, 12:46 AM
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Roland- I have received contact to Heigo from you by the way! So thanks a lot . It was some inspiration. I decide to go to roll bar instead full cage. I just thinking how to build interior. Probably I will by Recaro Pole Position but like to have own interior, with racing heritage but clean and simple
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TET930 996 TT 2003 X50 996 GT3 2004
930 1988 black on black -fast...
944 TURBO S 1989 WHITE/BLACK # 1 944 TURBO S 1989 #2
911 S 1970 Targa /ex porsche werks car!
911 S 1969 Targa (under rebuild)
Old 01-18-2010, 01:53 AM
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My Heigo roll bar but my will be alu without powder coating.
__________________
TET930 996 TT 2003 X50 996 GT3 2004
930 1988 black on black -fast...
944 TURBO S 1989 WHITE/BLACK # 1 944 TURBO S 1989 #2
911 S 1970 Targa /ex porsche werks car!
911 S 1969 Targa (under rebuild)
Old 01-18-2010, 02:01 AM
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Howdy Tomy,

As just mentioned in my long winded recent post about not commenting on projects, will not on any technical elements of yours here except to say it’s funny you should mention a specific use percentage, ie, 80/20. Here in the US in PCA club circles when someone mentions the 20% track usage part of their planned car build equation they are invariably referring to “winning the DE”: That’s the driver’s education events often run on the same weekends as PCA Club Races where the expert/solo sessions can run nearly race speeds - but inline with no passing in corners - against more diverse machinery than in the actual races themselves. Sort of an informal driving/mechanical gut check of your equation against any eligible street licensable door slammer out there that can pass tech.

Only one part of this objective is real irrefutable performance, the 20%, while the 80% part is measured by static elements like meeting (barely) street legality and your ability to tolerate discomfort in routine use. It’s probably better to benchmark the requirements for an effective race car and up-content/soften to meet the street than the reverse which is so often done with DE cars over here: lots of blingy disjointedly installed catalogued items not applied as a coordinated “system” – that paramount for making a weekend track warrior comfortable out there at the performance fringe…especially in traffic. That’s exactly what this chap did here. He bought an absolutely wonderful factory 993RS CS in your country, imported and raced it successfully but it was just a little to hairy for the street, too valuable to drill holes/mod for more usability and couldn’t be legalized. On the other hand, it’s stunning 993 C2S Aero replacement was not only too heavy and soft, but again too valuable to carve up and modify for track duty.

So here’s a racer’s answer - nothing exotic in these areas: power plant, a nice, quiet (important in your country) flexible EFI package motor with about 500 RWHP at .9 bar, broad power band with good headroom to 7,500 rpm and a reasonable weight reduction program. But, note the emphasis on the reinforced chassis, tied in cage and suspension especially those Motons. With a 930, one can sorta fake the engine part for 20 or 30 minutes at a time as no one'll know about the painfull revelations of leak downs done afterward in the privacy of one's garage but dicey handling won't work in the face of extremely refined modern machines like GT3's. More appropriate to 930's than to the 914 to which it's monikered on Pelican, ours are truly the evil cockroaches at the limit unless carefully fettled.
You are already onto emphasizing the handling part so maybe this’ll benefit some others.

As someone who'se driven these cars daily for 32 years, the best part about this one is it’s been flogged as a DE instructor car, drag raced and street driven for 5 years while requiring only a valve adjustment. Sounding admittedly old school, noone makes such a versatile durable platform like the 930 that can be turned into one of these now a days.
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Peter

1950 Vincent Rapide - A Red Rapide Experience -

Last edited by Peter Guldan; 01-20-2010 at 01:43 PM..
Old 01-20-2010, 08:30 AM
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I just order:
  • Hargett shifter
  • zeitronix AFR lcd panel gauge with Zt-2 unit


I thought about innovation LM-2 but finally choose Zeitronix.
I agreed with paint shop date of painting and will deliver my car in first week of Feb.
So I count full month for disassembling and painting and another one for assembling with all my new interior items.




__________________
TET930 996 TT 2003 X50 996 GT3 2004
930 1988 black on black -fast...
944 TURBO S 1989 WHITE/BLACK # 1 944 TURBO S 1989 #2
911 S 1970 Targa /ex porsche werks car!
911 S 1969 Targa (under rebuild)
Old 01-22-2010, 12:09 PM
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It takes time! I count 2 months and it takes 5 and half! But at least I finished
stage I:
- painting with all plastic and rubber new including new rubber bug spoiler on front ( look fantastic !)
-Heigo roll bar ( screw in model)
-weight diet - now my 930 is 2605 lbs consist of removing back seats, RS carpeting but based on original Turbo carpet material made for me especially in Germany (thx to KHM Kfz-Technik GmbH), and beautiful GT3 carbon seats.
-new Turbo K27 form RarlyL8
-new exhaust and wastegate pipe from RarlyL8 -thanks Brian!
I was looking for new intercooler from Andial but I find that RarlyL8 is prototyping one so I awaiting when he could have final product and will order from Brian.

So outside my car looks 100% classic as is as from factory. Inside looks clear are aggressive as I like will back home Monday and take some pictures to publish here.

Off topic -by the way last months we have introduce our new racing car Stealth B7 you could see it Stealth Cars and in YouTube too ( search for Stealth b7) it is our latest racing car with 650 Hp and only 1950 lbs! All body is Carbon!
__________________
TET930 996 TT 2003 X50 996 GT3 2004
930 1988 black on black -fast...
944 TURBO S 1989 WHITE/BLACK # 1 944 TURBO S 1989 #2
911 S 1970 Targa /ex porsche werks car!
911 S 1969 Targa (under rebuild)
Old 07-23-2010, 02:08 AM
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Quote:
Originally Posted by 911st View Post
Good data point.

I had an extreme build C2 Turbo at one time (ports, exhaust, cams, Andial/Porsche S2 re-core IC, custom D-WUR, custom reversed BOV rigged for instant boost (.6 bar of cruse & .2 off idle, full euro injection conversion, EBC, Tial, RUF sways & rims, Cup suspension, bigger brake conversion, Speedster seats to match, cup clutch... ).

I went back to a K27-7200 for the very fast spool over the K29 and an early HF built on a 7006 hot side even though it would not hold full boost to redline if set at 1 bar. No problem at .85.

Yes the big turbo's pulled for ever. However I felt I was faster in real world conditions with the K27-7200 as it spooled so quickly and reached full boost so fast.

Funny. I think it's one of those "the grass is always greener" type of things.

Yeah, we all hate turbolag but with quick-spool, VTG twin-turbos you don't get any of that "WOW!" shot-out-of-a-cannon feeling

On balance, I think HF K27 or Hybrid K29 must be the way to go; SC Cams and K27-7200 feels a bit too much like 'driving a Diesel'
Old 07-23-2010, 05:52 AM
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Ya, basically I traded that last big push after 5500rpm for a bigger faster response at 2-3000rpm.

At first I liked the little boost threshold but longer more liner V8 like building of power (boost)of the HF.

In total I think I traded maybe 30hp up top for about 30 hp at about 2700rpm or something like that.

However, the 7200 just suited my in the city driving and I got hooked on the more explosive boost response that was mostly fully in by 3100rpm (3600+ rpm for my K29).

All great turbos but different character.

The most successful turbo on a 3.3 CIS reported seemed like a single ball bearing Turbonetics 60-1. Much, much faster to full boost than the 7200 and yet had the big top end of a big turbo. Had one built but sold the car before I could try it my self.
Old 07-23-2010, 08:04 AM
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