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Is anyone running 300Hp on 924? How much boost do you have?
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owenexile  



Joined: 05 Jun 2009
Posts: 333
Location: Australia , Bunbury

PostPosted: Fri Jul 30, 2010 1:12 am    Post subject: Reply with quote

Lenkru wrote:
Sorry I don't have any pictures of that side. The flanges was very easy but the correct placement was a big headache apart from the height it is also very close to the body. I did increase the size of the drain pipe but I will have to measure it to give you the size.

You could fit a T3 in if you wanted but it will have too much lag. The T28 works perfect for me.


Haha pasop sodat die flappies ni daai kar in di hande kry nie . Dit sal di volgende vinnigste ding wees deer ventersdorp
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924 1982 N/A
For some reason theres always a earth problem somewhere with this car...
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Lenkru  



Joined: 27 Jul 2010
Posts: 10
Location: CAPE TOWN, SOUTH AFRICA

PostPosted: Fri Jul 30, 2010 7:53 pm    Post subject: Reply with quote

No chance of that I made the alarm and tracker system myself. I can control the electronics from anywhere with any cell phone.
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owenexile  



Joined: 05 Jun 2009
Posts: 333
Location: Australia , Bunbury

PostPosted: Sat Jul 31, 2010 3:15 am    Post subject: Reply with quote

Lenkru wrote:
No chance of that I made the alarm and tracker system myself. I can control the electronics from anywhere with any cell phone.


Wow hats of to u then. I removed my immobiliser say about 6 months ago , made sure to mark evrything. Then few days back i decided to put it back and ouch it takes a brave man to crawl in under there
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For some reason theres always a earth problem somewhere with this car...
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Joakim  



Joined: 15 Jun 2003
Posts: 24
Location: Sweden

PostPosted: Mon Aug 30, 2010 2:58 am    Post subject: Reply with quote

gegge wrote:
Mike9311 wrote:
gegge wrote:
morghen wrote:
torque is pretty impressive 400+Nm from 3500 until redline.
power is high up in the 7K RPM


Agree

(But in this particular case was the valves too large and the duration too long if you ask me)


Would you say the valves were large and the duration large to compensate for poor head flow? The better way being to have good ports and headwork (better valves/chambers) and closer to stock size valve and cam?

Do we know what rods were used in that engine? With the faster acceleration of a short rod, the intake charge would be helped by that vacuum therefore helping the NA numbers. I am just curious to what was actually done to achieve that power level.


Yes, I am guessing that is the only way to get some flow out of the head. But 44,5mm intake valves are too close to the cylinderwall and shroudding is a serious problem (a larger bore or off-center bore will help). The 280 cam would work better with a longer tuned tubular manifold, reversion could be of concern - especially with large 38,5mm exhaust valves. Wold be interesting to know the flowbalance. The head was milled 10 degrees, the intake was raised and ported as much as possible by a legend in Sweden - "Grottis". JE pistons and Verdi rods but I donīt know the stroke/rod ratio. I think there are some benefits with a shorter rod as long as you are aware of the downsides as balance, vibrations, stress and wear.

I would take a good look on the 933 engine to make high NA hp, then turboconvert it.


Regarding the size on the inletvalves, I have 87mm Bore, and i have moved the cylinderhead 6/10 mm to get the necessary clearance. And my new camshaft have 292 degrees of duration.

BR Joakim With 384 HP
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