924Board.org

Raceboy · Joined: 01 Mar 2004 Posts: 2327 Location: Estonia, Europe

So, finally got to the dyno today and results were pleasing to say at least

206 rwhp/265 rwNm. Guessing 18% (very optimistical about fiunal hp numbers

) gives app. 245 hp/315 Nm at the flywheel.

That was with 0.97 bars of boost.

Here's the graph. You can see that turbine is pretty big for that setup but it has good torque down low due to being 9.3:1 CR.

_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold

'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

Min · Posted: Tue Oct 30, 2007 6:06 am Post subject:

Wow, what are the spec's on the turbo you used? You didn't make any internal changes to reach those numbers?

Min
_________________
Custom means it didn't come from a box.
1980 n/a with EDIS and Megasquirt II Injection. 7 different colors and counting.

Raceboy · Joined: 01 Mar 2004 Posts: 2327 Location: Estonia, Europe

Absolutely stock euro 924 engine.

I don't know the specs of the turbo, but it's from Hyundai Terracan 2.9 diesel engine. It says IHI KHF5-1A on the label.
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold

'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

Min · Posted: Tue Oct 30, 2007 6:29 am Post subject:

google's not showing much as far as information on that turbo. What are your next upgrade plans?

Min
_________________
Custom means it didn't come from a box.
1980 n/a with EDIS and Megasquirt II Injection. 7 different colors and counting.

morghen · Joined: 21 Jan 2005 Posts: 9095 Location: Romania

congrats ! great results !

So what we know until now is that the 924 NA engine will take almost 1 bar of pressure if managed right..and aparently is not of so poor design afterall if boosted corectly. The gearbox and tranny will take over 245HP but the clutch will slip.
Now..this shoud shut up some mouths and get some minds working. Everybody on to their projects now ! go go go !

_________________
Supercharger and EFI kits
https://www.the924.com

endwrench · Joined: 07 Dec 2002 Posts: 1631 Location: Victor, Montana

WOW! Very nice numbers! Did you do some tuning on the dyno? How 'bout the clutch? At what RPM does your boost peak?

Todd
_________________
'79 924NA. Rebuilt 9.5:1, MSDS header, Mega Squirt Injection, MJLJ-EDIS Ignition, 1.6L Whipple Charger and Intercooler, 10lbs Boost, 944 Trans, Custom HD Clutch.
"simsport" said....superchargers are better than turbos its official!....

Raceboy · Joined: 01 Mar 2004 Posts: 2327 Location: Estonia, Europe

I didn't tune it on the dyno, just measured the result.
Boost peak is on 4000rpm and holding it until the end.

Morghen, that head is poor design because normal engines would make at least 300 hp at nearly 1 bar of boost.

Clutch was so-so, if I'd tune the engine to more power, it would slip. On gearchanges it doesn't hook up sharp. And I tried for last pull to advance timing by 2 degrees, it made 13 hp more, but unfortunately I don't have graph for that. And I wouldn't dare to tune it without stethoscope. At this graph, I was running 26 degrees of total advance (base timing verified and spot on).
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold

'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

morghen · Joined: 21 Jan 2005 Posts: 9095 Location: Romania

yea....modern 16V engines would. however 245HP and 944T-S performance. from an engine that everybody calls bad and slow is more than a lot. again. congrats ! you tha man !

_________________
Supercharger and EFI kits
https://www.the924.com

Scorpio · Posted: Wed Nov 14, 2007 9:49 am Post subject:

804kid · Joined: 19 Mar 2008 Posts: 18 Location: Richmond, Va

we need to get some updates on this, im so lost on why you are advancing the timing and why you need a stethascope? anyway i have 1979 924 with like 90xxx and my plan is to weld together some piping like you did and basically take the turbo system out of my talon tsi and swap it into my porsche

. the turbo is mitsu 14b, if i just bolt all this up am i going to totally destroy my engine, i was planing on running like 8-9 psi, and then driving it... but everyones got me scared because i keep seeing so many idea that i have no clue about.. can i just bolt the turbo up and go?

whats the worst case senario?
thanksss

tuurbo · Posted: Thu Mar 20, 2008 10:00 am Post subject:

Worse case scenario would be 'kaboom' I should think.
_________________
1980 924 turbo, MSD, Meth. Inj, otherwise stock.

804kid · Joined: 19 Mar 2008 Posts: 18 Location: Richmond, Va

lol ok ok, how should i go about this, any steps i seem to forget, im going to hook up all plumbing, set the turbo to 8 psi, turn the car on, let it run for a bit, and then give it hell? anything i missed?

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

804kid · Joined: 19 Mar 2008 Posts: 18 Location: Richmond, Va

well i got all the parts needed, im pretty sure i can get it all hooked up by saturday, then id just be scared to start it i guess

71vdubturbo · Joined: 28 Nov 2006 Posts: 75 Location: Rolla, Missouri