Not with all the money I soent on my paint! ;-)

I used to get up to Oxford quite a lot with my old job but am mainly London-based these days. We'll catch up one of these days.

Cheers,

David

 

Gil,
Just caught up with this thread. First of all apologies for not coming back to you via email, I thought that I had sent you a reply and as a result it is a real shame that we could not meet up. That said, it looks like you had a great time with John (thanks again JS) and as a result you can now vouch that 9m's 993 engine conversions really do achieve "what they claim on the tin".

Goodwood is one of my favourite circuits and is particularly suited to the 993 with its fast, smooth sweeping bends. As a guide to speeds, one of my customers (who lives nearby) took a 325hp 993RS around the circuit and did a 89.2 second lap, the circuit instructor who knows 911's well managed to do an 88.9s flying lap. At a Speed Championship sprint two years ago my then 425hp 3.8litre 9m powered 993RSCS did an 89.1s lap - from a standing start! I have been told by said customer and instructor that a flying lap would drop around 5 seconds off this time, so maybe an 84 is on the cards. My GPS datalogger showed 148mph braking into the last bend Woodcote - could not quite get to 150. My guess is that John's well set up 993 would lap in the region of 86-87 seconds, all on road legal trackday tyres.

Geoffrey of Racetec Engineering, NY is currently the sole US distributor of all 9m Racing parts. Most of our catalog is now up on the 9m website, for prices please contact myself or Geoffrey:
http://www.ninemeister.com/index.php...k=view&id=1%20

 

Hi Colin -
shame we could not meet up but as you see I got the "full monty" treatment riding with John. There was massive flooding up your way so I 'm not sure I could have driven up anyway. I think we are all stuck at "re-map" issue if we get the heads. Does Geoffrey have a solution now? Thanks for response.

 

I think Geoffrey has had a few discussions with Todd Knighton with respect to the Motronic ecus, for race applications he does the same as I do and simply fits Motec.

I now wish that i had a movie of my car going around Goodwood because that circuit is so fast you cannot believe it, certainly a leap of faith required to go flat out of the first bend Madgwick, hold it absolutely flat in 4th through the blind crest at Fordwater and then carry tons of speed into the next right Noname. St Mary's, the cambered left is exciting to say the least when you are fighting to keep the front end in the hollow and then the double apex of Lavant has a wonderful foot-to-the-floor exit where you just clip the grass at the exit point at 110ish if you get it absolutely perfect. Unfortunately although I set everything up for this year's sprint and found that my camera battery was flat and could not take any footage (d'oh) but next year I'll be there again and will then be able to show you what a really fast lap looks like from the hot seat (no offence, John!).

 

Not offended at all Colin, I have been in the passenger seat of the yellow missile (your 430BHP 993RSR) at Elvington airfield when you kindly rearranged my internal organs with the extreme acceleration, plus you managed the 4.5s 0-60 time in my car which i couldn't emulate, and finally i am not the reigning PCGB Sprint champion

Quick question, now I have changed the Cargraphic big bore headers for original bischoff smaller bore headers is it worth remapping the car again?

Everything else is as per before, 100 cell cats etc.

Cheers

John S.

Gill, hope you are well and not struck with the drought? Don't think it is as far up as Virginia? All the best John

 

Funny things headers. It might be best to bring the car up to us with the headers for a dyno session, but bring your old ones along as well so that we can do a back-to-back if the results are not as we expect. Hopefully I will also have the production version of the new 9m road/race headers available as well, so maybe if we have time we can do a test with these on your car as well?

Once we know what differences each exhaust makes to the graph we can then evaluate how the fuelling and ignition is affecting the curves and then decide whether to remap depending on the findings. My guess is that the headers you have will make a very small difference to the mapping requirements, but I suspect that our headers would demand more fuel across the range.

 

Gil - cool writeup! Thanks for sharing that. This mod could bridge the gap btwn the 993NA and 993 tt for a modest cost. Will see what U.S. providers come up with to lightly mod a 95' DD with heads and remap. This of course bounced against the SC mod costs and considerations. The neat thing a 9m head mod could bring might be a neutral impact to resale and less fussiness with octane rqmts.

 

For me, the deciding factor was track usage. I had actually bought the s/c kit (on ebay) but when I looked into track usage I was into charge cooler, extra oil cooler and maybe even reducing c/r I was unsure. Then on a track day when three modded (non pcar) turbo cars blew up, I was sold on the 9m conversion - for the track! I have done 20+ track days since the conversion and it runs as cool as before and just as reliable, no contest over forced induction.

 

What kind of power are we talking about here. From your impressions, it would seem that power output is well above 400bhp.

 

Johns engine puts out a consistent 350hp on our chassis dyno which is enough to keep his 1300kg 993 ahead of the average GT3 on track with the following performance data (your's truly driving):

Zero to:
10mph 0.71s
20mph 1.30s
30mph 1.91s
40mph 2.71s
50mph 3.65s
60mph 4.55s
70mph 5.84s
80mph 7.15s
90mph 8.58s
100mph 10.41s
110mph 12.37s
120mph 16.02s

 

what kind of torque are we talking about?

 

425nm on Colin's dyno

 

Who has contact info for Geoffrey at Racetec?

 

John -
with the strong British Pound, you could ship your car over here and give some "butt meter" rides to eager Rennlisters for less than an airline ticket. Hope all is well with you and the family. Have a presentation in UK in December and will give you a call if it materializes. Gil

 

http://www.racetek-engineering.com/Contact.htm