look what i just bought...

jameslxdt · Post by **jameslxdt** » Sat Jan 06, 2007 6:13 pm

gti6 camshafts

just got to motivate myself to fit them

tux2006 · Post by **tux2006** » Sat Jan 06, 2007 6:28 pm

v nice! where'd you get them?? how much? if you don't mind me asking

When you do get round to fitting them let us know how it is and what sort of improvement it gives

jameslxdt · Post by **jameslxdt** » Sat Jan 06, 2007 6:36 pm

got them off ebay for only £41 there's another pair on there now but they're already £60
i hope they will gain about 6-7 bhp and 10 lb/ft of torque
but the main improvement will be the throttle response and added length of the power band

Malachy · Post by **Malachy** » Sat Jan 06, 2007 7:45 pm

jameslxdt wrote:got them off ebay for only £41 there's another pair on there now but they're already £60
i hope they will gain about 6-7 bhp and 10 lb/ft of torque
but the main improvement will be the throttle response and added length of the power band

you have the 1.8 16v?
if so your biggest restriction are the port sizes peugeot made them stupidly small to keep the power down on the engine so it would provide i definitive difference between the 1.6>1.8>2.0l in the ranges get a die grinder out and open up the ports a bit

jameslxdt · Post by **jameslxdt** » Sat Jan 06, 2007 7:46 pm

no, i have the 2.0 16v

Malachy · Post by **Malachy** » Sat Jan 06, 2007 7:57 pm

jameslxdt wrote:no, i have the 2.0 16v

ahhhh ok then well then theres negligable difference in the whole engine to the gti6 setup then,epsecially since you have an early one which would mean you will Likely have the piston spray bars aswell meaning your bottom end is almost identical to the gti6

i would be quite tempted to steal the inlet +exhaust manifolds aswell, you wont be able to use the ecu however as the gti6 use COP (Coil on plug) and relys on a camshaft sensor aswell which your head will not have.

people will harp on about the gti6's double valve springs etc etc in the real world it makes no difference

the 2l 16v is 90% as good with those parts and a remap

tux2006 · Post by **tux2006** » Sat Jan 06, 2007 8:04 pm

I'm the one with the 1.8 16v

unfortunately

If I knew how to go about grinding the ports out abit I would

but don't have the experience on piston engines or tools to do so.........only engines i've played about with are small gas turbine jets at uni

*goes off to strap some to the arse end of car*

jameslxdt · Post by **jameslxdt** » Sat Jan 06, 2007 9:20 pm

Malachy wrote:
jameslxdt wrote:no, i have the 2.0 16v
i would be quite tempted to steal the inlet +exhaust manifolds aswell, you wont be able to use the ecu however as the gti6 use COP (Coil on plug) and relys on a camshaft sensor aswell which your head will not have.
P

only the very late 306 gti6 with L4 emission control will have sequential fuel injection necessitating the need for a cam angle sensor

i have already got a gti6 exhaust manifold just cant be botherd to fit that either

Malachy · Post by **Malachy** » Sat Jan 06, 2007 9:44 pm

jameslxdt wrote:
Malachy wrote:
jameslxdt wrote:no, i have the 2.0 16v
i would be quite tempted to steal the inlet +exhaust manifolds aswell, you wont be able to use the ecu however as the gti6 use COP (Coil on plug) and relys on a camshaft sensor aswell which your head will not have.
P
only the very late 306 gti6 with L4 emission control will have sequential fuel injection necessitating the need for a cam angle sensor

i have already got a gti6 exhaust manifold just cant be botherd to fit that either

its not just sequential injection which need the cam sensor the gti6 engine uses coil on plug, ths meaning 4 coils not wasted spark. you need the cam sensor to identify the cylinder that needs firing out of the 2 at top stroke. the cam sensor on the gti6 has nothng to do with emissions or sequential injection:P
as you will know each cylinder only fires every 720 degrees of crank rotation on a 4 stroke you need the cam sensor to run cop with non wasted spark.

jameslxdt · Post by **jameslxdt** » Sat Jan 06, 2007 10:39 pm

i never knew the gti6 had a direct ignition system, thats obviously why it has a completley different management to the ordinary 2.0 16v
just a quick thought, will the inlet cam fit as it will have a reference mark for the hall effect in the cam angle sensor

Malachy · Post by **Malachy** » Sat Jan 06, 2007 10:45 pm

jameslxdt wrote:i never knew the gti6 had a direct ignition system, thats obviously why it has a completley different management to the ordinary 2.0 16v
just a quick thought, will the inlet cam fit as it will have a reference mark for the hall effect in the cam angle sensor

yes will fit your head even has the casting for the sensor on the front its just not drilled

on the left hand side above the top engine mount)

from what i remember the s16/iron block mi16 also ran COP before the gti6 and that dates to 1992/3 peugeot were very early for this sort of technology, although in real terms it offers no benefits over a normal wasted spark system except prolonged spark plug life.

jameslxdt · Post by **jameslxdt** » Sat Jan 06, 2007 10:54 pm

Malachy, i dont suppose you know the standard camshaft duration and the gti6 duration?

Malachy · Post by **Malachy** » Sat Jan 06, 2007 11:01 pm

tux2006 wrote:I'm the one with the 1.8 16v unfortunately

If I knew how to go about grinding the ports out abit I would but don't have the experience on piston engines or tools to do so.........only engines i've played about with are small gas turbine jets at uni

*goes off to strap some to the arse end of car*

the 1.8 16v engine is a stonker and is what the 205T16 is based on and what the current PSA wrc cars run bored out to 2l (xsara and old 206/307 with a modded mi16 head on them) and we can see how well loeb does in that.

many people rate this more than the 405t16 iron block engine, the 405t16 was based on a 2l iron block s16 lump.

its definatly an engine that can give good results when tuning but people over look it and go straight for the gti6 etc

Malachy · Post by **Malachy** » Sat Jan 06, 2007 11:01 pm

jameslxdt wrote:Malachy, i dont suppose you know the standard camshaft duration and the gti6 duration?

not of my head but ill dig out some doc tomorrow too late now

jameslxdt · Post by **jameslxdt** » Sat Jan 06, 2007 11:05 pm

cheers malachy, do you think its worth getting a gti6 inlet manifold?
i cant see it making any difference whatsoever, the plastic one i have looks quite well designed