K-Jetronic
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Hej!
Does anybody know, how much you can get out of a Saab 99 (900) Engine with K-Jetronic -> B-engine and H-engine?
I am just curious about how much you can get out of such an engine, perhaps with some porting in the cylinder-head, balannced parts and sportier camshaft.
Thanks for input!
Erik
With a turbo engine 8valve with k-jetronic 175hp that is what the injektion system maximum can make.If yuo make some tune up with the injektionsystem its possible to get more but it is expensiv.(my english is not so good in swedish i now what the name is)
Hej Pelle!
No, I don’t mean a turbo, I am talking about an 118hk normaly-aspirated engine (like 900i).
You can also tell me in swedish, I understand some swedish (but can’t talk/write in swedish…)Tack!
Erik
The K-jetronic has its limitations. People changed needle and ”seat” to V*lvo parts to increase the fuel flow. I´m not sure at all about HP without turbo charging. Gooooooooogle?
Example from http://www.resultatservice.com
saab 99 2.2 h-motor 2006-05-20 12:56
saab 99 2.2 h-motor smidda mahle kolvar balanserad och viktad.weber 45or extraktorrör.vass topp med en 300 gr. kam med 12,3 i lyft mycket vass maskin ca 155 hkr. säljes för nytt objekt.körd ca. 50 lugna inkörnings mil. för mer info. Pris: 16500kr.Now this is a 2.2litre H-engine with Mahle pistons and they’re not using the k-jetronic but WEBER. If you are lazy, you could buy this engine instead of tuning yours
Still, it is 155hp which is much more than the standard 118hp, but still nothing compared to a 2.0litre 16valve turbocharged…..hrm…standard engine Hej!
Well, I ask about K-Jet-Engine because I am about to start building a 99 Rallye-car. In the end I want to put in a 16V-H-engine with programmable injection. But this is a realy expensive thing and I want to start with a tuned K-Jet-engine, until the other engine is ready.
So I don’t want to do a complete new rebuild, just some porting on the head, higher compression, better camshaft and exhaust.I think I have to find out myself, how much this can bring. If someone has more info, that would be nice.
Tack!
ErikHallo
I think the biggest problem Is the fuel distributer.
It cant deliver so much more fuel whitout tweaking It.
Higher fuel pressure. I dont know but mayby you can have fuel to 130 hk.Take parts from the turbo and you have enough fuel.
Niklas
In one of our old VW Golf rallycars we had a fuel Distributor from a Saab Turbo -78 (I think) It´s a bigger with 6 exits instead of 4. Only 4 of them are drilled and used. I think Porsche is using the same.
The engine was delivering 175 hp on 2 litre. The fuel Distributor was stock, not changed, but we had higher fuel pressure.
This should work out fine for your car as well./Ulf
Stig’s 99 Rally Turbo from 1979 had around 260 hp and used a fuel distributor from an 8-cyl Porsche 928. The eight exits were interconnected, two and two.
Mikael
Hej!
Thanks for the infos.
I am not sure, but I have read a book about K-Jetronic which says that a stock-K-Jet can be good for about 40-50% more power without any changes.
Otherwise, I have a K-Jet from a 900 Turbo in my garage, so if the stock system does not deliver enough fuel, this is a good upgrade-option.Erik
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