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She's Back!

wizard

New member
For the past few weeks my little car has been living at Promax Motorsport health clinic, she was in very poor health with some very bad habits. A detox along with some health and fitness training was very much required.

First of all we saw the install of a new Cometic MLS headgasket, and If i'm to believe a thread on Rennlist these will are not being manufactured anymore.
The valve stem oil seals needed replacing as she smelt very bad in the morning with smoke.
The belts had been changed about 2 years ago but since then the balance shaft oil seals had leaked and a balance shaft sheath had worn very low along with front crank seal leaking, this had been replace at the same time too. These leaks took their toll and contaminated the belts so new ones fitted and tensioned correctly.
2 new fuel injectors were installed as the previous ones broke on removal.
A new ignition tuneup kit was installed to bring that bit of spark back into her life, new plugs leads, rotor and dizzy.

A while ago she was given a little run on Jamsport Dyno where it first became apparent of her poor health, very strong initial curves were produced but she wheezed when things started to get exciting, the wastegate was very weak and needed retiring. Peak performance was shown at 220 bhp and 278 lb/ft torque. Now she sports a shiney red Lindsey Racing dual port wastegate being kept in check by a Greddy PROFEC B II electronic boost controller.
Her attitude has had the ProMax treatment too with level 2 chips installed.

In order for her to be able to contain the new power and maybe future upgrades, a new clutch was in order. The previous one was very heavy and showing signs of wear. According to the history she had done very well to keep the origonal clutch to 155K miles. A new SPEC stage 2 sits as a replacement and clutching to a new lightened flywheel.

A previous MOT had noted corrosion of the fuel and brake lines, so whilst the clutch was out and rear beam down, brand new feed and return lines were fitted.

To celebrate this new lease of life I bought her a set of new shoes and discs for her hind quaters, very shiney they look too.

From what I hear, the old girl put up a major fight at first, refusing to let go of her equipment/habits. Perseverence by ProMax soon got her into shape again and was delivered back to me last night.

I took her out for a little spin for about an hour, much more lively with eagerness starting at 2800-3000 rpm and lasts right up to the red line, this was at the LO setting on the Profec, I haven't tried the HI setting yet. I am told the clutch judder when starting off will gradually go away, it isn't too bad just need to remember to leave a bit of space infront when in a queue. Other gears select very swiftly and smoothly.
The clutch feel is much lighter and I'm sure she will be more freindly to my wife in the future.
Power delivery is much smoother but very very strong - much more torque.

The next stops will be for a power run at a dyno just to see how well she is performing. New suspension is required too and maybe lowering. MAF could be on the cards too but all this work has given the wallet a good beating and so will have to wait.

 
My god, all in one hit!!!
Congratulations, it (and you) must feel totaly rejeuvenated, but poor
 
It was cheaper to have it all done in one hit as by having the rear axle down alot of cost savings were avaialble. Apparently alot of the cost is on labor time taking the car apart when changing the clutch so having the brake and fuel lines lines along with rear crank seal and flywheel done at the same time was a cost saving. Removing the head enabled the clutch to be done easier too as I believe there are some awkward nuts.

I will be giving her a good seeing to this weekend [:D] just to see how good this rejuvination is, first impressions are really amazing.
 
Yes Mik, quite excited as I have had the car for 2 years this month and after having it dyno'd I always wondered what it should feel like, the boost enhancer kept me happy for a while. After seeing what others have done on this forum both in terms of performance gains and issues being experienced, the car really needed some attention.

Fen - I have plans to come up to Cornbury this weekend, I have never been and I can also get my PCGB membership sorted too. See you all there.
 
Sounds like Cornbury on the 5th is going to be the next big 944 meeting !

Don't forget your guitars for the band meeting

[:D] [:D] [:D]
 
I'm back too!!

Having spent much time "tweaking my firewall" as per the instructions, login actually worked.

Whether the firewall is still working is another matter....

I can't make the 5th, as I'm cooking lunch for a houseful, but please feel free to talk about me

Paul McNulty
1986 944 Lux

 
Nice work Jason [:D] that little lot must have made a huge difference. Please keep us updated as to how the clutch beds in. I'm going to have a Spec II on mine, because I believe its the most extreme you can go whilst still keeping it user friendly for the road. I'd love to have a trip up the road on Sunday, I haven't felt proper boost for a while.

I bet your dyno sheet will look a lot healthier than the Jamsport one, and if you can wait, I WILL be organising another Dyno Day in the spring, but I'm not even looking at dates until I know my car will be ready [;)]
 
Pah, I had to go in the 306 last time - make a date and take the van so I have a shout at being top dog...
 
ORIGINAL: Diver944
I WILL be organising another Dyno Day in the spring, but I'm not even looking at dates until I know my car will be ready [;)]

I think you should wait until Ben's car is back. [:D] [:D]

Rick.
 
ORIGINAL: Diver944

Nice work Jason [:D] that little lot must have made a huge difference. Please keep us updated as to how the clutch beds in. I'm going to have a Spec II on mine, because I believe its the most extreme you can go whilst still keeping it user friendly for the road.

Paul. Clutch isn't too bad, it certainly grips though. I managed an almost smooth hill start!
The only side affect I have noticed so far is the transmission noise has increased. Andrew suggests that this is nothing untowards with a car having 155K miles worth of wear on its gearbox, torque tube and bearings. The car has LSD too and this also increases in noise by the more aggressive clamping forces of the SPEC clutch.
The gearbox had new oil last year, about 7K miles ago, maybe I will have to change the oil on a regular basis as the wear is going to be increased now.
 
Blimey :)

Bet your car is a real pleasure to drive now [;)]

I will be up for the rolling road as I have'nt got the foggiest what power my car is putting out at the moment be nice to see if its above or below porsche specifications.

Cheers

Dave K.
 
I was wondering how you are getting on with your Spec clutch? I know alot of people have said you need to be more brutal with them but I was wondering if this was due to the lightened flywheel rather than the clutch? A clutch is a clutch when all is said and done so I suspect the jerky behaviour others have observed (and not necessarily got on with) is a result of the lower inertia of the lightened flywheels which mean the engine revs drop quickly and abruptly as the clutch takes up.

Has anyone got a Spec clutch with a std flywheel?
 
Hi Scott, I am coming to terms with the fact the car will not be as comfortable/smooth to drive from starting off (or reversing). I have a technique now to get past the judder. This is to rev a little higher and take the clutch off a bit quicker, it takes some concentration at the moment, its a bit like doing a hill start without using a hand break. [&:]
Reference the flywheel - I cannot claim to notice a great deal of difference as my car has had too many other factors changed so it is a totally different animal. I'm sure those of you who have gone from a single to dual port waste gate and a remap will agree here.[:D]

I'm told that normal clutches have more dampning on them to give a smoother transistion, I guess you do not need this if you are in a competition car and require limited clutch slip when taking off.

I think its use will improve when the roads are not so greasy. Piroeting is very easy at the moment.
 
Interesting. I take it the cup clutch is the Porsche item fitted to the cup turbo cars? If so it sounds like that might be a much more civilised option than the hard core Spec clutch. According to the Rennlist link it seems this clutch should easily be able to handle significant power gains.
 
[;)] Looks like I lost the record for worst plate lift at RPM. They had to send mine away to get cold chiseled out.

On another note, I picked some parts up today from Reading OPC - some lucky customer has reserved an awesome looking white 911 GT2 RS.
 
Looks like I lost the record for worst plate lift at RPM. They had to send mine away to get cold chiseled out.

Mine went away, and there was a "sundry welding" extra to get the bolts out. [:eek:]
 

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