118 replies to this topic

[markv]

marks RR needs a light recalibration but other than that It looks V nice

What makes you say that? From the callibration I've done, it was pretty accurate..

Im confused! Are you using the 68mm tb or the 58mm? What other performance mods do you have?

Very impressed with the gains! Would it be easy for a mechanical novice to attempt?

Hmm, I thought it was very clear on the page that I put up. I started out with the 68mm but it logged P1514, so I put the 58mm back on.
I would guess you should be able to determine for yourself if you want to try to fit it. There should be enough pictures and text up on my page so you can make a good guess..

Mark

[andyroo]

Hmm, I thought it was very clear on the page that I put up. I started out with the 68mm but it logged P1514, so I put the 58mm back on.
I would guess you should be able to determine for yourself if you want to try to fit it. There should be enough pictures and text up on my page so you can make a good guess..

Mark

You did make it clear, I was interupted in my reading by my bored wife by that stage, so my bad for not reading it properly!

Where did you order your inlet from? Did it come with the gaskets in it already? Did you have to do anything to get the 58mm tb to fit properly?

Sorry for all the questions, I just want to make sure I have all the info before trying anything as my VX is my only car!

Cheers,

Andy

Edited by andyroo, 03 September 2007 - 10:50 AM.

[siztenboots]

I started out with the 68mm but it logged P1514, so I put the 58mm back on.
I would guess you should be able to determine for yourself if you want to try to fit it. There should be enough pictures and text up on my page so you can make a good guess..

Mark

P1514, if I remember right, that is shown when expected airflow, calculated from barometric sensors, IAT, engine RPM and throttle position , is different from the mass airflow rate seen.

[slindborg]

even converting NM to lbft it appears that the power and torque dont cross at 5252rpm... but i could be wrong. If they dont cross here then the RR isnt setup right

[Arno]

even converting NM to lbft it appears that the power and torque dont cross at 5252rpm... but i could be wrong.

If they dont cross here then the RR isnt setup right

I's day it's pretty damn close though..

199Nm == 146.7 lb ft.

(1 lb ft == 1.356 Nm )

Judging on the graph at 5252rpm it's a tiny smidge below that torque. The hp figure seems to be in the right ballpark (145 or so).

Though I may be severely cross-eyed

Bye, Arno.

[slindborg]

lol I had been cross eyed too... meh

[jimmymac]

marks RR needs a light recalibration but other than that It looks V nice

What makes you say that? From the callibration I've done, it was pretty accurate..

Im confused! Are you using the 68mm tb or the 58mm? What other performance mods do you have?

Very impressed with the gains! Would it be easy for a mechanical novice to attempt?

Hmm, I thought it was very clear on the page that I put up. I started out with the 68mm but it logged P1514, so I put the 58mm back on.
I would guess you should be able to determine for yourself if you want to try to fit it. There should be enough pictures and text up on my page so you can make a good guess..

Mark

Do reckon its possible to do the 2.4 inlet mod only and leave everything else standard ie. airbox, cat, exhaust etc and still get gains?

Edited by jimmymac, 03 September 2007 - 02:51 PM.

[Winstar]

Do reckon its possible to do the 2.4 inlet mod only and leave everything else standard ie. airbox, cat, exhaust etc and still get gains?

Yes, If you look at the torque curve it's quite clear that the current mani is choking out at higher revs.

[jimmymac]

Do reckon its possible to do the 2.4 inlet mod only and leave everything else standard ie. airbox, cat, exhaust etc and still get gains?

Yes, If you look at the torque curve it's quite clear that the current mani is choking out at higher revs.

sounds like the ultimate low cost mod to me

[markv]

You did make it clear, I was interupted in my reading by my bored wife by that stage, so my bad for not reading it properly!

Where did you order your inlet from? Did it come with the gaskets in it already? Did you have to do anything to get the 58mm tb to fit properly?

Sorry for all the questions, I just want to make sure I have all the info before trying anything as my VX is my only car!

Bought the inlet from autopartspeople.com. It came with the gaskets. The only thing I did to get the 58mm to fit properly is to use the original gasket that was on the original manifold.

P1514, if I remember right, that is shown when expected airflow, calculated from barometric sensors, IAT, engine RPM and throttle position , is different from the mass airflow rate seen.

Found the document a bit late, but it is very usefull:

http://service.gm.co...2/2002file2.pdf

So the estimated MAP based on the TP is over 30kPa lower then the actual MAP. Confirms what I saw when driving the car and monitoring MAP and TP on the OBD reader..

Mark

Mark

[Turbo²]

Mark; Did you buy the standard 2,4 68mm TB or the 2,0sc TB? Do you need to make a wireing adapter for the 2,4 TB? vocky; Does the 2,0sc fit the 2,4 manifold without an adapterplate? Do you need the 3$ gasket kit (what does it contain off?)?

[vocky]

Mark; Did you buy the standard 2,4 68mm TB or the 2,0sc TB? Do you need to make a wireing adapter for the 2,4 TB?

vocky; Does the 2,0sc fit the 2,4 manifold without an adapterplate?

Do you need the 3$ gasket kit (what does it contain off?)?

the 2.4 tb is the one to buy

you must make an adaptor plate, move the ecu and make a loom adaptor to fit a 2.0 sc tb, so my advice is buy the 2.4 tb - which plugs into the standard loom and bolts straight onto the 2.4 manifold.

the $3 gasket set does not include the required oil breather gasket

I'm still trying to find the full gasket set part number

[luna_s]

just a thought, how important is that oil breather gasket ? - can't it just be blocked off ? from my observations it lets in oil vapour from the cylinder head into the inlet - or is it needed for pressure reasons ?

[markv]

just a thought, how important is that oil breather gasket ? - can't it just be blocked off ?
from my observations it lets in oil vapour from the cylinder head into the inlet - or is it needed for pressure reasons ?

I was wondering this myself. I talked to one of the guys that did the supercharger conversion, and he said that the ventialtion is blocked off by the supercharger in the conversion.. So not sure if it is really needed..

Mark

[vocky]

I used all the 2.2 gaskets, the only one different is the oil breather gasket - which is slightly too small. all I did was use some instant gasket to seal the 2.2 oil breather gasket into the 2.4 inlet manifold, then once it had set used some more to create a seal between the inlet manifold and head, the only downside is every time the inlet manifold has to come off it will need some more instant gasket

[andyroo]

I used all the 2.2 gaskets, the only one different is the oil breather gasket - which is slightly too small.

all I did was use some instant gasket to seal the 2.2 oil breather gasket into the 2.4 inlet manifold, then once it had set used some more to create a seal between the inlet manifold and head, the only downside is every time the inlet manifold has to come off it will need some more instant gasket

Is this something that needs dealing with for a straight swap from the 2.2 to the 2.4 manifold?

[vocky]

Is this something that needs dealing with for a straight swap from the 2.2 to the 2.4 manifold?

only if you don't use the 2.4 gaskets

some manifolds arrive complete with gaskets

[andyroo]

Is this something that needs dealing with for a straight swap from the 2.2 to the 2.4 manifold?

only if you don't use the 2.4 gaskets

some manifolds arrive complete with gaskets

Thanks Vocky! If I ever meet you, I'll buy you a drink; you deserve it!

Oh! Another question: You say on z22se.co.uk that the FPR pipe now connects to the servo one way valve... where is that?

Edited by andyroo, 04 September 2007 - 11:38 AM.

[Baron Von Scubadaddy]

I've read Markv's guide it's great and it's something I'm gonna do this mod must be done only thing bothers me is the making of the bracket to hold the ECU I don't really have access to metal working facilities would any one be up for making a bracket kit or a pattern that we could give some one else to fabricate one so dickheads like me can do this at home and not have to pay a garage. Please .

[p4cks]

only thing bothers me is the making of the bracket to hold the ECU
I don't really have access to metal working facilities

I've recently ordered my 2.4 inlet mani and will need to fabricate one of these. I'll make a spare for you if you like...