Has anyone worked on a K series engine ?
Discussion
There is a good YouTube video showing how to tweak your K to 200BHP and you get to see my cat (now deceased).
The K series page is close to an e book and it's free.
You will need to make some modifications to fit an 1800 to a Caterham in place of a 1600
You need to modify the block on the exhaust side to clear the starter
You need to fit a spigot bearing and sleeve to the end of the crank
You need to shorten the gearbox first motion shaft by15mm or so or it will bottom in the end of the crank
You need to transfer the flywheel, clutch, oil pickup, baffle and sump to the new engine
If you are keeping the existing ECU you also need to either trade the injectors up to larger capacity ones or increase your fuel pressure from 3 bar to 4 bar to cover the change in capacity.
If your engine is a supersport you will need swap the cams over.
If one of the engines is EU2 and the other EU3 you will need to make some adjustments that will depend on which is which.
Dave
The K series page is close to an e book and it's free.
You will need to make some modifications to fit an 1800 to a Caterham in place of a 1600
You need to modify the block on the exhaust side to clear the starter
You need to fit a spigot bearing and sleeve to the end of the crank
You need to shorten the gearbox first motion shaft by15mm or so or it will bottom in the end of the crank
You need to transfer the flywheel, clutch, oil pickup, baffle and sump to the new engine
If you are keeping the existing ECU you also need to either trade the injectors up to larger capacity ones or increase your fuel pressure from 3 bar to 4 bar to cover the change in capacity.
If your engine is a supersport you will need swap the cams over.
If one of the engines is EU2 and the other EU3 you will need to make some adjustments that will depend on which is which.
Dave
Evoluzione said:
stevieturbo said:
turbocharge or supercharge it....job done lol
I don't think it's strong enough (generally).Get a 1.8 with good cams and a decent head job and that'll do nicely!
The VVC has 4mm larger inlet valves, 3.5mm larger exhaust valves and a lot more port area together with 290 degrees of cam duration when the VVC is fully extended, if makes around 155BHP if you are lucky. Early ones made 145 ish.
The most you will see from a fully ported VVC with hotter exhaust cam and custom programming is 175-180.
On a non VVC engine try running a 290 degree cam with fixed duration on a plenum with an ECU that Uses MAP for load sensing... See how far you get. Your pistons will dissolve above 160 if you get there.
A 1600 with full big valve port and the hottest cams the stock ECU will tolerate will give 150-155, and 1800 with the same mods will give 160.
Dave
The most you will see from a fully ported VVC with hotter exhaust cam and custom programming is 175-180.
On a non VVC engine try running a 290 degree cam with fixed duration on a plenum with an ECU that Uses MAP for load sensing... See how far you get. Your pistons will dissolve above 160 if you get there.
A 1600 with full big valve port and the hottest cams the stock ECU will tolerate will give 150-155, and 1800 with the same mods will give 160.
Dave
Max_Torque said:
And frankly, a nice 200 odd bhp is, imo, the sweet spot in a Caterham, especially if you want to use it regularly on the road.
Get a 1.8 with good cams and a decent head job and that'll do nicely!
Exactly that via boost should be relatively unstressed and very easy to achieve ?Get a 1.8 with good cams and a decent head job and that'll do nicely!
stevieturbo said:
Exactly that via boost should be relatively unstressed and very easy to achieve ?
Accommodating the hardware in the confines of the engine bay would be problem.The pistons would fail at around 160-170 BHP.
Getting the power with a boosted engine is easy, getting the engine to stay together isn't necessarily.
You can perm any two of the following terms, but not all three.
Powerful
Cheap
Reliable
Dave
DVandrews said:
Accommodating the hardware in the confines of the engine bay would be problem.
The pistons would fail at around 160-170 BHP.
Getting the power with a boosted engine is easy, getting the engine to stay together isn't necessarily.
You can perm any two of the following terms, but not all three.
Powerful
Cheap
Reliable
Dave
What in relation to power causes the pistons to fail ?The pistons would fail at around 160-170 BHP.
Getting the power with a boosted engine is easy, getting the engine to stay together isn't necessarily.
You can perm any two of the following terms, but not all three.
Powerful
Cheap
Reliable
Dave
Boost is generally very easy on an engine, especially the low boost that would be required for such a small power upgrade.
And certainly 200hp from a 1.6 or 1.8....I would never class as powerful, so that leaves cheap and reliable
stevieturbo said:
What in relation to power causes the pistons to fail ?
Boost is generally very easy on an engine, especially the low boost that would be required for such a small power upgrade.
And certainly 200hp from a 1.6 or 1.8....I would never class as powerful, so that leaves cheap and reliable
http://www.pistonheads.com/gassing/topic.asp?h=0&f=47&t=1554825Boost is generally very easy on an engine, especially the low boost that would be required for such a small power upgrade.
And certainly 200hp from a 1.6 or 1.8....I would never class as powerful, so that leaves cheap and reliable
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