333pg333

Not sure where you get your figures from there Andrew but I would have thought a 90 deg bend would have quite a bit more effect than 0.6% on air flow? I am prepared to be wrong but I deal with rangehoods and ducting regularly and we have always worked on the less turns the better and 90's kill the air flow quite a lot.
Patrick

NZ951

J. Edgar, 2000 "21st Century Performance", Figure 6.2 [pp. 148], Clockwork Media.

333pg333

Couldn't you have been a bit more specific. lol Good 'nuff.

Markus951

I will use 68 mm piping from IC to TB and 63.5mm piping from turbo to interooler. all togetehr i will have
before intercooler on turbo side - one 90 degree bend and two 45 degree bents

After intercooler I most likeli have one 45 degree bent and 2 90 degree bents

So totally I have 3 90 degree bents and 3 45 degree bents

I hope zoran dont mind that I put up a picture about hes engine bay.. My IC is a bit different but piping will be similar!

Porschefile

Is that a carbon fiber cam cover I see? Sweet! Your engine is looking great Markus!

333pg333

Trav, that's actually that Aussie 968rs replica pictured there.

Markus951

Hey

I have now collected some cilicone bents and some SS bents to come up with proper IC setup will see how it goes! For those who are planning 16 valve projects.. its a tight fit , but nothing that big..really!

I also added one 3" resonator (approx 1m long) into the exhaust system, just to make it more convinient to drive in the city..

Now, can anyone tell where the stock bottom end can be revved (I have 951 con.rods and upgraded valve springs) I know that the the head is good at least for some 8000 rpm action but I was thinking that bottom end max 7000? I did balanace everything but how does the stock 951 rods will tolerate the extra weight coming from 104mm 968 pistons witch are a bit heavier then stock 951 ones? I knew that in stock 951 motor the main problem where the heavy valvetrain and lifters but this is not the case here! I doubt that I have powerband problems with with that 0,82 GT35R but still what do you guis think?

Also have any of you guys had fuel feed problems during hard cornering in the tracks? Have any of you guys built additional surge-tank for fuel?
http://sdsefi.com/techsurge.htm.

Raceboy

Markus, the main problem with the high revs and high-cornering will be oil.

Olli Snellman

Markus,
did you modify oil pan? Do you use any kind of crank scraper?

Chris White

Anything over 6500 and you are starting to gamble with the rod beraings. Its a little different with each engine due to casting differences. Other varaibles enter in to it - oil temp, G forces and possibly the phase of the moon - but in the end the risk goes up after you pass 6500. The main issue is oil pump cavatation.

Markus951

Yes I have crank scraper installed!

THis is the intercooler solution, seems that I can use some of the old piping from last year.. The piece you see in the picture is originally the pipe what was used last year as a return from IC to throttle body so I have to remove Intake temp sensor and put the banjo bolts for wastegate boost feed instead





The small pipe end you see attached to the IC piping will be used for idle speed controll valve...
Here you can see where where the pipe was originally used, made

Markus951

Hey

Here are some pics of the intake manny project.. will see how it turns out..

Duke

I like it

Markus951

Something is cooking!




I also installed new 25 row oil cooler.. with you can see in front of IC and behind the bumper..

markus

Markus951

Hey

Have any of you experienced with higher comp.ratio vs. bigger turbo.. How much boost can I run with 9,5:1? I am just calculating where should GT35R 0,82 should get me with 17 PSI.. I think that should be maximum for that engine!

Markus


then again...not so many 16 valve projects here..