Mean Machine.

[Gareth_GT_Hatch]

Thats what my curve should have looked like! <insert porka hammer-bashing smiley here>

you got the same at the wheels as me alex! (which is bad as I got 5hp more than you. )

[Gareth_GT_Hatch]

My graph has that dip in it also.


For comparison;

1.3 spi mk4

65 (45) bhp @ 4611rpm
approx 94lb ft at about 2800rpm

The biggest pain in the ass with this car is the gearing; GT gearing with very much non-gt power delivery. A total load of annoying toss, I hate it. I was expecting it to be more like a mk3 CL tbh which I could live with as I only want to plod along and keep the revs down on the motorway but what happens? At any reasonable speed on the m-way it revs too high for the delivery characteristics which really psses me off. I will get round to trying a GT cam to see if it makes it more sensible but tbh I think it really needs a more suitable box and that really fcks me off






(and breathe....)

Its a mk4, the box will blow up soon enough, then you can drop a nice 8p in there out of a mk3.

[Krupa]

you got the same at the wheels as me alex! (which is bad as I got 5hp more than you. )

Only reason I can think of is that I've had new gearbox oil recently.

I wanna run mine again now the tracking's sorted.

Maybe I've gained 1bhp... maybe not!

[nuttinnew]

Krupa, I think the screaming was down to dodgy tracking/camber after a pothole-laden trip across sunny London to get there

Gareth, box seems fine atm but I do have a 53k 8p knocking about for my G that may have to find it's way in



I don't suppose anyone knows if a 1.6 spi injector unit has a larger butterfly than the 1.3? Come to think of it I wonder if summat off of a Golf3 1.8 would fit I'm sure I read somewhere of BRM putting a 268 into a 1.6 spi so I might have to give it a try as well. Oh feck, I'll need a vernier. I give up!

[bstardchild]

Oh feck, I'll need a vernier. I give up!

First thing I every bought when i was f'ing around with two stroke engines - still have it and it's used regularily..... first digital one I had ever seen!!!!

[Krupa]

Would dewedging lengthen the strong part of my torque curve?

And are NZ throttle bodies bigger? I'm sure I heard that somewhere!

I'm after a couple of cheap mods to tide me over till I can afford a transplant.

[Gareth_GT_Hatch]

The smaller of the two butterflies is bigger on the NZ (Forget if the big butterfly is any different) But Im not sure how easy it is to fit the GT bits onto the NZ throttlebody (i e the throttle position sensor)

[Krupa]

Do you know if anyone's tried it?

Are there any benefits to be had when removing the charcoal canister?

And the oil breather which goes into the induction pipe into the throttle body is worth ditching too if I remember.

[polo_GT]

Apart from weight, they are just there to help emissions i think. May as well ditch them as it makes the engine bay look neater, just make sure you don't bung the petrol tank breather otherwise your tank could become pressurised

[Gareth_GT_Hatch]

I dunno if anyones tried an nz throttlebody yet but dom had on in his collection so he may have tried something with it, i dunno

Yep, ditch the oil breather, get a catch tank. (Im half way there, oil breather is vented to air but no catch tank yet)

Ive never removed a charcoal cannister before, I cant see it making much difference either way but if you dont need it i say ditch it.

[Tahrey1043]

this almost counts as archive-digging, but....

mr strange -- thats about what i said wasnt it? heh.. in any case i had a think, had another look over karl's graph, it still looks funky but not so bad as before. for some reason my memory was serving up a picture of an even steeper peak than is actually there. plus he's not the only one posting similar 1.3CL figures...
again without the benefit of experience, but i can't think that the 1.3s would be so greatly more reticent to rev than the 1.0, which was zingy enough (until you were into 2nd gear anyway ... had a G owner looking at a dash vid and asking when i was going to dewedge it ) ...

certainly cant be any worse than the new motor.. its got enough power but even in neutral that needle seems to take its sweet time, and revving past 5.5k is a complete waste of everyone's time once you're in 2nd

nice curves there krupa

didn't the mk4 use the same boxes as the mk3? using up whatever was left - 60/75hp 1.4 (8v) getting some strange mongrel box that's half AHV (the internal ratios, with 5th=0.891), half small diesel / 1.6 / formule-E (the diff, about 3.8-3.9) is one that i've seen before. Giving the benefits of an excessively tall 1st gear and a silly short 5th! (like your max power being at about 85mph)

get an 8p in there, or a moddied gt / golf box!

[Krupa]

What do you block the hole in the pipe with?

Dan - I remember you had white caps you were using on yours, where'd you get 'em from?

Charcoal canister looks like a pain to remove, though doing so would allow me to use a G40 air intake thing (it's an airbox intake behind the driver's side headlamp).

[hardhitter]

I've got some plastic caps. I can paint some black to match if needed with some plastic dye paint.

Removing the charcoal canister means blocking the vacuum pipes and the where it goes into the small rubber pope between the isv and inlet manifold. You can buy the plug for that from vag. Don't block the clear tubing that comes the tank as it's a breather, let it vent to air.

[Krupa]

Is it possible to use one of those little air filters on the oil breather pipe or would that make the ECU go nuts due to extra air getting in that's not supposed to be there?

I only ask because my housemate's got one spare somewhere.

Dan: how much do you want for one of those caps in black?

[hayesey]

what? on the end of the vacuum hoses? no you need to seal them off.