Victorrr
New member
- Joined
- Jan 17, 2020
- Location
- Angers, France
Hello there !
Let's begin with a few disclaimers :
Im French, my english isn't the best
Long big fat text block (id rather say it all once than repeat myself)
Living in France makes things different (don't worry I'll explain)
Yes, I'd like to turbo a stock NA K-Jet, and no, I can't LH 2.something swap it, and no I can't simply swap the engine from a 940 turbo or something.
And yes, I've done the search and found some interesting thread already but none of them had the answer to my question... They are all old.
I've read that IPD Cameron managed to make it work - somehow - in the 2000s, as a basic cheap blow through setup.
Okay, let's start with some infos first :
I have this 88 240 sedan (yes, it came with K Jet, no cat, no lambda no nothing). Almost 180k miles (done the km to miles conversion yeah).
The K Jet on this car is, meh. It runs yeah but I can def tell that its not running right. Im 100% sure it has to do with the car sitting + me adding fuel additive cleaning. I got the car in pretty bad shape for 4000 euros (yeah thats quite a lot but they are RARE here)...
So im planning on a K Jet rebuild, I just need to diagnose it first (I have the gauge tool dw).
I know for a fact that the valves haven't been adjusted in a big while + timing belt needs replacing + engine mounts too.
I realised that it would be easier to just pull the whole engine and swap it out. except there isn't any engines to swap in its place, nearest one is in germany... Then I came across this turbo + manifold from a B200(FT?) for a really low price. 80 euros + shipping. 1st turbo on sale since Iv'e had the car...
From what I've read. The issues with Turbo-ing an engines will be the mixture and timing. K Jet can be adjusted and since It'll be fully rebuild, im like, hey, why not. For the timing... I have this very nice 123 Tune +, fully programmable unit with vacuum/boost port so retard under boost is no issue I guess. As for the fuel enrichment under boost...
I don't know. I don't plan on running much boost (maybe 5,6 psi max?). LH swap is out of the question since there isnt ANY available for sale here + I don't know if the 123 Tune will work with LH anyway...
The main issue with NA K-Jet is the air bellow thingy + the position of it. Im wondering, is it possible to use the NA K-Jet as a draw through ? The biggest issue with that for me would be the crazy plumbing, placing the metering unit on the exhaust side in place of the washer liquid, It would mean making new fuel lines, idk...
The thing is : is this possible ? I just want to take care of my engine, I know it needs care and I'm like "Hey since I need to pull the thing, why not turbo the thing !"
The block is a late 88 K cast. Skinny rod. They'll be okay. What im not sure of is the maintenance on the thing. Should I take it all apart, measure, check clearance and rebuilt it using new bearings, gaskets ect.. What's cool with living in Europe is I have access to KG Trimning, a great sweedishh website.
I'm afraid to find out of round cylinders tbh, I can hear a bit of noise but I can't tell if its cam related or if its good ol' piston slap...
The "support" mods I plan on doing :
Mocal oil cooler. around 240 euros for a nice oil cooler + thermostat
Complete refresh of the engine (bottom end, top end, reusing what I can but going with quality when new parts needed)
Stock turbo from a 2L euro spec turbo engine (will get a rebuild kit if needed)
(suspension wise the thing is already riding on some nice B6, I have a full bushing set layin around + ipd sway bars and a few braces)
"Tuned" K-Jet. As a draw through to avoid the issue on decel (Turbo blowing the metering plate open, leading to cylinder being washed down + poor economy)
I know that the stock injectors can handle a lot, they will get cleaned or replaced if too far gone.
A wideband if I can afford it + an oil temp gauge
The list of things im less sure of :
Intercooler ? I don't plan on going for crazy boost but I figure, hey looks cool if I can find one cheap, why not ?
A new cam. I think I have the ****ty M cam atm, I might go with a Turbo cam. Issue is... sourcing one here.
Porting...? Nah. I don't need it. My goal is at best 150hp ..? I want reliability.
a CPR/WUR from a turbo car ? Im really not sure about this one...
A 2.5" exhaust (single muffler or dual..?)
All the things im not sure of :
How to route the thing (mostly the K-Jet position)
Some stuff about rebuilding the engine
How to create the adequate timing map
Boost enrichment... Is it really needed if I don't floor it non stop/run 5/6 psi ?
Reliability and mileage.
How to route the oil feed and return to and from the Turbooo (tapping the block ?)
Budget wise... Im a student willing to spend the money to make it reliable. We can't go fast here anyway... I just like the idea of making my own car, and having a Turbo ^^
I love my car, really, there is only 3 !!! 240s in my 300k people town (1 is diesel the other one is an old mint 242GT)
Sorry for the long big fat text, long live the brick !
Let's begin with a few disclaimers :
Im French, my english isn't the best
Long big fat text block (id rather say it all once than repeat myself)
Living in France makes things different (don't worry I'll explain)
Yes, I'd like to turbo a stock NA K-Jet, and no, I can't LH 2.something swap it, and no I can't simply swap the engine from a 940 turbo or something.
And yes, I've done the search and found some interesting thread already but none of them had the answer to my question... They are all old.
I've read that IPD Cameron managed to make it work - somehow - in the 2000s, as a basic cheap blow through setup.
Okay, let's start with some infos first :
I have this 88 240 sedan (yes, it came with K Jet, no cat, no lambda no nothing). Almost 180k miles (done the km to miles conversion yeah).
The K Jet on this car is, meh. It runs yeah but I can def tell that its not running right. Im 100% sure it has to do with the car sitting + me adding fuel additive cleaning. I got the car in pretty bad shape for 4000 euros (yeah thats quite a lot but they are RARE here)...
So im planning on a K Jet rebuild, I just need to diagnose it first (I have the gauge tool dw).
I know for a fact that the valves haven't been adjusted in a big while + timing belt needs replacing + engine mounts too.
I realised that it would be easier to just pull the whole engine and swap it out. except there isn't any engines to swap in its place, nearest one is in germany... Then I came across this turbo + manifold from a B200(FT?) for a really low price. 80 euros + shipping. 1st turbo on sale since Iv'e had the car...
From what I've read. The issues with Turbo-ing an engines will be the mixture and timing. K Jet can be adjusted and since It'll be fully rebuild, im like, hey, why not. For the timing... I have this very nice 123 Tune +, fully programmable unit with vacuum/boost port so retard under boost is no issue I guess. As for the fuel enrichment under boost...
I don't know. I don't plan on running much boost (maybe 5,6 psi max?). LH swap is out of the question since there isnt ANY available for sale here + I don't know if the 123 Tune will work with LH anyway...
The main issue with NA K-Jet is the air bellow thingy + the position of it. Im wondering, is it possible to use the NA K-Jet as a draw through ? The biggest issue with that for me would be the crazy plumbing, placing the metering unit on the exhaust side in place of the washer liquid, It would mean making new fuel lines, idk...
The thing is : is this possible ? I just want to take care of my engine, I know it needs care and I'm like "Hey since I need to pull the thing, why not turbo the thing !"
The block is a late 88 K cast. Skinny rod. They'll be okay. What im not sure of is the maintenance on the thing. Should I take it all apart, measure, check clearance and rebuilt it using new bearings, gaskets ect.. What's cool with living in Europe is I have access to KG Trimning, a great sweedishh website.
I'm afraid to find out of round cylinders tbh, I can hear a bit of noise but I can't tell if its cam related or if its good ol' piston slap...
The "support" mods I plan on doing :
Mocal oil cooler. around 240 euros for a nice oil cooler + thermostat
Complete refresh of the engine (bottom end, top end, reusing what I can but going with quality when new parts needed)
Stock turbo from a 2L euro spec turbo engine (will get a rebuild kit if needed)
(suspension wise the thing is already riding on some nice B6, I have a full bushing set layin around + ipd sway bars and a few braces)
"Tuned" K-Jet. As a draw through to avoid the issue on decel (Turbo blowing the metering plate open, leading to cylinder being washed down + poor economy)
I know that the stock injectors can handle a lot, they will get cleaned or replaced if too far gone.
A wideband if I can afford it + an oil temp gauge
The list of things im less sure of :
Intercooler ? I don't plan on going for crazy boost but I figure, hey looks cool if I can find one cheap, why not ?
A new cam. I think I have the ****ty M cam atm, I might go with a Turbo cam. Issue is... sourcing one here.
Porting...? Nah. I don't need it. My goal is at best 150hp ..? I want reliability.
a CPR/WUR from a turbo car ? Im really not sure about this one...
A 2.5" exhaust (single muffler or dual..?)
All the things im not sure of :
How to route the thing (mostly the K-Jet position)
Some stuff about rebuilding the engine
How to create the adequate timing map
Boost enrichment... Is it really needed if I don't floor it non stop/run 5/6 psi ?
Reliability and mileage.
How to route the oil feed and return to and from the Turbooo (tapping the block ?)
Budget wise... Im a student willing to spend the money to make it reliable. We can't go fast here anyway... I just like the idea of making my own car, and having a Turbo ^^
I love my car, really, there is only 3 !!! 240s in my 300k people town (1 is diesel the other one is an old mint 242GT)
Sorry for the long big fat text, long live the brick !