59 replies to this topic

[vocky]

thought some of you might want an update of my 2.2's mapping My vx spent over a week recently going between TMS and Superchips rolling roads to have the 310cc injectors mapped (standard injectors are 252 cc) Picked her up Friday and it seemed pretty good, but never had the time for much driving Started her up this morning and the cold tickover was very sweet, infact the best it's ever been since the engine build I normally allow the engine to warm up before going for a spin but wanted a cold engine run to check the mapping, very pleased with the results....nice and smooth Engine response feels much more progressive with no flat spots, but as soon as the engine hits 4200 rpm the cams let rip all the way to the 6850rpm limiter In gear acceleration has improved massively, mainly due to the flat spot at 4k rpm vanishing Not sure of the final power, I'm not really interested , but will post the rolling road figure from the last run (which will be later this week) I am finally happy with my vx220's performance, so until I fit a 2.4 vvt with itb's that's about it for now I must thank all those involved in the mapping work, you have done a fantastic job guys

[GunnerGibson]

if the power is still rising near to the limiter get a 7k raise! the limiter is harsh on these cars... im going to make the lmiter softer when i have it mapped. sounds like you've done some top work... nothing more satisfying when it all comes together. good effort.

[speedster]

Hail vocky! What's the product code for the valves you used?

[GunnerGibson]

i meant to ask....how do you time the cams in on n/a VX? or are they just ground differently and run on standard settings....

[ikarl]

[vocky]

I have piper cams and they peak at 6800rpm so not really worth going higher with the limiter

They were very simple to 'time up' because piper kept the standard method of cam chain timing marks

I would advise to find a standard size wasted stem valve rather than +1mm, the added cost of fitting them is not worth the gains (£25 per valve seat ) but sivalves should be able to supply them

si valves

for reference these are my +1mm items
2.2 ECOTEC GM EX STOCK SEV-1707-1
2.2 ECOTEC GM INT STOCK SEV-1706-1

[dude]

Up with charts Still interested in the wheelpower

[Thorney]

Not until I'm happy

[dude]

He can´t claim 200hp on the flywheel without telling the actual wheelfigure Or is your rr a happy one

[Baron Von Scubadaddy]

Nice one Vocky I'm looking forward to tunning mine Thank you for all efforts in leading the way to 200hp You da man !!

[vocky]

He can´t claim 200hp on the flywheel without telling the actual wheelfigure
Or is your rr a happy one

I always thought the TMS rolling road read about 10 bhp low with the 2.2 vx's

[JawZ]

I've been following your project for a while now over at z22se.co.uk but havn't registered over there Just wanted to let you know that I think your work is really interesting and very nicely done Looking forward to see the final results of the mapping Make sure you enjoy those extra ponies

Edited by JawZ, 20 August 2007 - 06:44 PM.

[Stefan_A]

I've been following your project for a while now over at z22se.co.uk but havn't registered over there

Just wanted to let you know that I think your work is really interesting and very nicely done

Looking forward to see the final results of the mapping

Make sure you enjoy those extra ponies

Go ahead JawZ, admit that you are tempted to do this mod on your car. Then you can tell the rest of us (and let us have a go at it on the next meeting here in Sweden)

[Arno]

I have piper cams and they peak at 6800rpm so not really worth going higher with the limiter

Theoretically, correct. In practice I'd suggest setting the rev limiter at 7000 when the horsepower peaks at 6800.

Personal preference, but..

A few hundred rpm over the peak HP is usually a good idea as it keeps you the powerband once you shift up and also gives you a little 'headroom' in the lower gears to shift at/close to the peak hp rpm without slamming into the limiter every time. 50 rpm is a very small margin

My engine peaks close to 8100rpm and my limter is set to 8600rpm (it's mapped to 8700rpm). That works fine, but even then I have to be quick in 1st and 2nd gear or it hits the rev limiter.

Bye, Arno.

[JawZ]

I've been following your project for a while now over at z22se.co.uk but havn't registered over there

Just wanted to let you know that I think your work is really interesting and very nicely done

Looking forward to see the final results of the mapping

Make sure you enjoy those extra ponies

Go ahead JawZ, admit that you are tempted to do this mod on your car. Then you can tell the rest of us (and let us have a go at it on the next meeting here in Sweden)

Tempted

Planning to get some engine mods this winter

[JimmyJamJerusalem]

I'm a fair way behind on all this..... What mods have you done to get this sort of Power Vocky??

[vocky]

He can´t claim 200hp on the flywheel without telling the actual wheelfigure
Or is your rr a happy one

wheel figure was about 179 hp

torque was 195 Ft Lb's

Final rolling road figure 215.0 bhp

[luna_s]

congrats, time to squeeze out that extra 5bhp from somewhere

[JG]

He can´t claim 200hp on the flywheel without telling the actual wheelfigure
Or is your rr a happy one

wheel figure was about 179 hp

torque was 195 Ft Lb's

Final rolling road figure 215.0 bhp

well done Vocky.

only 25bhp shy of the charger.

[alanoo]

congrats, time to squeeze out that extra 5bhp from somewhere

Easy one, bigger diameter exhaust line