Menu toggle

944 S2 280 bhp Engine upgrade

T

turbotim3

New member
Hi. I don't know if this is going to be of interest but I'll show you anyway. I have just built an S2 engine for a customer
who is going to run it in a race series where he has to run the original inlet manifold. With the inlet being the main restriction
we had a play and this is the result.







We have had the engine on the dyno today and here is the results.





 
press image
like that then copy and paste the url from photobucket btween the two words like this
 
Picture loads OK now. Are you running solid lifters, reground cams and balancer shaft delete on this engine Tim.
 
The picture looks good but what about the innards? Keenly interested in how you get 280hp out of an S2...
 

ORIGINAL: turbotim3

Hi. I don't know if this is going to be of interest but I'll show you anyway. I have just built an S2 engine for a customer
who is going to run it in a race series where he has to run the original inlet manifold. With the inlet being the main restriction
we had a play and this is the result.

IMG_0086_zpsy6fahvzp.jpg



IMG_0088_zpsuvhrhoov.jpg



We have had the engine on the dyno today and here is the results.

IMG_0107_zpsok9cynpc.jpg




IMG_0108_zpsfyiaua6b.jpg
Click to expand...
 

ORIGINAL: blade7

Picture loads OK now. Are you running solid lifters, reground cams and balancer shaft delete on this engine Tim.
Click to expand...

Yes Paul, all the bits I did to my own engine but high compression and bigger valves.
 
very cool.... is the intake now a restriction at high revs? How much power could you make if you could keep it going up to 7500?
 

ORIGINAL: edh

very cool.... is the intake now a restriction at high revs? How much power could you make if you could keep it going up to 7500?
Click to expand...


Yes we think the intake was getting restrictive after 6500. We did take it to 7500 and the power was dropping off. It would have been
nice to try it on a set of individual throttle bodies. May be next time
 
Very cool results [8D] Obviously this is on a race car where the budget will be quite generous but I wonder if a lot of road users would be interested when it came round to rebuild time
 
Naturallyaspiratedtim is as impressive as turbotim [:)]

Great to see the potential of the M44 in this form.

thanks for posting

George
944t



 

ORIGINAL: Diver944

Very cool results [8D] Obviously this is on a race car where the budget will be quite generous but I wonder if a lot of road users would be interested when it came round to rebuild time
Click to expand...

Yes we (well me anyway) are very interested. Turbotim please provide the details on your build. Very keen to know what mods produced this kind of power.
 
I'm sure that quite a few will be interested! Could you tell us what you have done to get it to perform like this please? And I hesitate to ask, but ballpark cost?!!
 
Im sure you will be impressed when you see it Andy. I think we may have an M3 beater here. We already had the driver. Now the engine!!!!
 
Several years ago I 'tongue in cheek' challenged Jon at JMG to work on getting 300bhp out of an S2 engine, I can't believe that someone has got that close so I am really very impressed with Tims result. I can only imagine it's the ability to rev to nearly 7000rpm that yields the result but it's good to see the torque is spread over a wide rev range too.

I wonder what would happen if you were allowed to mess around with the intake manifold too?
 
ORIGINAL: BAZZ69

Im sure you will be impressed when you see it Andy. I think we may have an M3 beater here. We already had the driver. Now the engine!!!!
Click to expand...

Bazz are you running in Modern Classics again, or Future Classics?

It does look very impressive. I even checked the time the OP posted to see if I had been April fooled as conventional wisdom is that this can't be easily done!

Does the car have to run the original inlet manifold? If it's MC or FC you are talking about, my inderstanding is that you have to run the original TYPE of induction, but as the 944 had injection this means that it can run ITBs and mapped injection. It does not have to be the same manifold.
 
Independent throttle bodies are allowed. But its not a straight forward job. The servo is in the way. It can be done and it will be done. But not this year. I think 280 bhp is enough for this year. If it can give the M3s a shock we will be happy. Next year we want a 996 beater. And i have every confidence that. Tim and Specialist Car Services. Can achieve this. 300 to 320 bhp could be possible. If you want to sponsor me for the extra cost we will have it this year.Bazz
 
Do I interpret A/F at circa 13.2 :1 as the air fuel mixture? In that case it looks a little rich, but I am only a beginner, but maybe rich is good for cylinder head temperature?
 
You must log in or register to reply here.

Posts made and opinions expressed are those of the individual forum members

Use of the Forum is subject to the Terms and Conditions

Disclaimer

The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.

Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.

When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.

Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.

Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.

Porsche
Lockton
Pirelli
Officially approved
Oracle Finance
WEX Esso
Collecting Cars
Archant Dialogue
Back
Top