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N/A Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's specific to NATURALLY ASPIRATED NG900 and old 9-3.

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Thread: 900 2.3i now Trionic :) Reply to Thread
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Topic Review (Newest First)
08-06-2009 05:06 PM
GenuineSaab If you need help email or get me on msn Ill try to give as much as I have time.
08-06-2009 02:00 PM
grkguy89 i want to do this regardless of gains
i just want better fuel maps now that my N/A is boosted
08-04-2009 11:30 PM
SS929k how is that project going on this N/A motor any work worthy numbers popping up because I'd be willing to try this on my 9000
07-22-2009 09:37 AM
pellingt well....that is a (was) a beautiful car, but my memory is the pits ill admit and I honestly dont recall...sad to see what happened to that car tho...wow...anyone have any stats on Connely's car, is it the one i was thinking of? Oh, maybe I can dig up the old pics of my car at the 02 Soc and see if he was the second car down on the passenger side.
07-22-2009 09:36 AM
GenuineSaab
Quote:
Originally Posted by SAABOOST View Post
Yep stock header, stock intake, still has MAF in the way so no fuel tuning and pretty decent VE restriction at high rpm., ignition timing still dictated by maps in motronic.

You can rescale maf and injectors fuel pressure for fueling but then you skew the timing all over since the load input is way wrong for best timing.

I have many many hours on the dyno fully instrumented. I am even running the t7 head with higher flowing ports and smaller stems to help ve. Oh and then there is still that stock exhaust manifold. Cross section is on the small side since factory target was pretty low.
07-22-2009 09:20 AM
SAABOOST This guy?
07-22-2009 07:37 AM
pellingt Point taken but i talked to the guy at length about it, and he seemed honest and candid about some of the problems he had building it...Older gentleman, been building motors since the 60's, i seem to recall something like a 8000rpm redline...man i wish i could recall the details...anyone out there remember this car? It was sitting next to my silver airflow c900 at the kings island 2002 SOC...

Perry
07-22-2009 07:29 AM
GenuineSaab
Quote:
Originally Posted by pellingt View Post
at SOC02 was a 95 ish give or take NG, all motor, 280hp with dyno sheet posted on window, sounded like a motorcycle when he revved it, never seen something go from idle to redline that fast....wish I new more, I love built normally aspirated motors...

A very happy dyno I suppose. The problem is that you an expect about 100hp/ L on the wheels with a very highly prepped engine with great VE> I can tell you that the ports in our saabs are optimized for boost. Not NA at all. You simply cannot get the air that dense to fit enough to make 280hp through our tiny ports. Even enlarged all the way to the outside of the casting it would be pretty difficult. Now the second option would be since we are limited in torque from the cylinder pressure to extend it higher in the rpm range to see more putts per cycle and therefore more Horsepower. But again we are limited by port flow this time by piston velocity at high revs. Then there is getting the gasses out of the head that was through a stock header which is quite small for "280hp" Same goes for the inlet manifold. I had decent gains going to the less restrictive (larger ports) turbo manifold it also had the benefit of shorter runners to help the high rpm filling. Basically thats a fib unless there was a fair bit of nitrous. 280hp sounds about right for a 100shot
07-21-2009 04:45 PM
pellingt at SOC02 was a 95 ish give or take NG, all motor, 280hp with dyno sheet posted on window, sounded like a motorcycle when he revved it, never seen something go from idle to redline that fast....wish I new more, I love built normally aspirated motors...
07-21-2009 07:15 AM
SAABOOST
07-21-2009 06:15 AM
GenuineSaab No time to mess with it. Just parked in the back.
07-20-2009 11:33 AM
SAABOOST Any updates with this beast?
11-28-2008 05:09 PM
GenuineSaab
Quote:
Originally Posted by SAABOOST View Post
Besides, I think it's broke
Nope all back together with the best junk "t" transmssion and used viggen clutch we had.

2 hours to swap the trans and another hour to put the subframe bolts back in.. Its a little bit the wrong shape and most of them were stripped out the last time.
11-25-2008 06:34 AM
GenuineSaab CIS would not have solved the ignition mapping problem..

There are lots of dyno runs.. If anybody wants the dyno run files just email me. I can zip and send them all. Not time to gif each one.

Trans was certainly run dry after the seal went. Took 45min to get it out last night and another 15min of hammering to get the driveshafts out.. Little welded into the diff.
11-24-2008 09:01 PM
SAABOOST
Quote:
Originally Posted by Green9kAERO View Post
has this car been dynoed yet? It sounds pretty cool. id like more details
JP
Quote:
Originally Posted by GenuineSaab View Post
Not a high priority project.
Besides, I think it's broke
11-24-2008 04:49 PM
Castor Troy CIS is fucking terrible. you can keep it perkj
11-24-2008 04:29 PM
JK
Quote:
Originally Posted by perkj View Post
My point was it must have been more trouble retrofitting a T5 system than it would be to put a CIS system on.
Oh, yeah, I don't think so

The harness is pretty damn easy to swap out Pretty much unplug, then plug and play.


Quote:
Originally Posted by DeLorean View Post
Installing shitty CIS onto a car not originally equipped with it is downright kooky.
Yeah, no doubt!
11-24-2008 04:21 PM
DeLorean
Quote:
Originally Posted by perkj View Post
I understand that, but a CIS system can be put on any car within a few hours....I've seen autocrossers put it Fords, Hondas, Toyotas, etc etc. My point was it must have been more trouble retrofitting a T5 system than it would be to put a CIS system on.

BTW, CIS isn't a glorified by any means....far from it....its a mechnical FI meaning its metered system unlike carbs. Carbs require jet changes and sinking to obtain a/f needs.

Installing shitty CIS onto a car not originally equipped with it is downright kooky.
11-24-2008 04:15 PM
Green9kAERO has this car been dynoed yet? It sounds pretty cool. id like more details
JP
06-19-2008 05:13 PM
perkj
Quote:
Originally Posted by PaulH View Post
CIS is a glorified carb, and never came on ng900's, just for starters.

Paul
I understand that, but a CIS system can be put on any car within a few hours....I've seen autocrossers put it Fords, Hondas, Toyotas, etc etc. My point was it must have been more trouble retrofitting a T5 system than it would be to put a CIS system on.

BTW, CIS isn't a glorified by any means....far from it....its a mechnical FI meaning its metered system unlike carbs. Carbs require jet changes and sinking to obtain a/f needs.
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