1990 VN Sports Chip!

[SiLeNt-SoN]

Hey,

Just bought a VN commodore, recently owned a vk but decided to update lol

I am not sure if the car has a sports chip or not, i was told it felt like it did so i wanna know for sure now lol........ Its all stockm bar an exuast, lowerd, tinted, aftermarket brakes and maybe the sports chip.

So if anyone has some ideas on how to find out if it has a chip let me know


thanks peoples!

[dmitch]

should b a sticker on the chip... have a look

[hakhawk]

yeh, should be a sticker on it. i assume yout vn being 1990 is a series one, which had a bit better cam than the later models, and as such, was a bit quicker down low

[cracker]

bit better, not much pffft chips pffffft
iv still got a stock tune on mine lol been 12months since the enigne went in

[greenfoam]

Yeah cracker you twit :P, you are one of the only people that really neeed one in your V6 and you are the one that doesn't have one , if you had a factory smooth idle and an extra 10 rwkw you would be happier.

Silent son, any series one VN executive will be quick as it is. infact they are about the only Commodore that doesn't benifit much from a new tune (unless it's been modifed a bit) this is because the factory thought they were building a race car when they stuck the V6 in the VN, I dont know what they were thinking really but they certainly toned them down alot in the later models :P

[88GreenVN]

Yeah cracker you twit :P, you are one of the only people that really neeed one in your V6 and you are the one that doesn't have one , if you had a factory smooth idle and an extra 10 rwkw you would be happier.

Silent son, any series one VN executive will be quick as it is. infact they are about the only Commodore that doesn't benifit much from a new tune (unless it's been modifed a bit) this is because the factory thought they were building a race car when they stuck the V6 in the VN, I dont know what they were thinking really but they certainly toned them down alot in the later models :P

Is that why my 88VN runs better with the ATFY4410 chip insted of the AWUY9398?

[greenfoam]

Is that why my 88VN runs better with the ATFY4410 chip insted of the AWUY9398?

Yeah man AFTY will be worth a fair bit of power over AWUY, everyone with a series 2 VN or VP should be running one of the go fast VN chips like APNX or ATFY, that's if you can't make a better one, but if you were going to pick up one for next to nothing and plug it in, why not? 20 bucks for at least 5rwkw I reckon that's a bargin

[05isAlive]

Great info, but for those of us who arent up with these chips, can someone explain why they're good? Are they stock memcals and if so from what models? I've got a S1 VN Berlina that goes very well and in good nick except the paint, in fact it goes a lot better than my VR. As the market seems overloaded with VN's, thought I'd keep the VN gear to put in the VR later.

Cheers,
O5IL

[Doctor Bob]

the std series 1 tunes are good, but there is always room for improvement.lol

[greenfoam]

Great info, but for those of us who arent up with these chips, can someone explain why they're good? Are they stock memcals and if so from what models? I've got a S1 VN Berlina that goes very well and in good nick except the paint, in fact it goes a lot better than my VR. As the market seems overloaded with VN's, thought I'd keep the VN gear to put in the VR later.

Cheers,
O5IL

They just run more timing in the older stock tunes, I think they might do with a little more fuel sometimes but yeah. They run more timing than the VP and the VP runs more than the VR (but the VR tune is totally different), which is why the VR is a bit slower than those two cars when it should really be faster. If I had a VP, first thing I'd want would be to stick a VN S1 memcal in it while I figured out how to get a better one. I think you could get a mint VP to run under 15.5 with the VN memcal in it

[cracker]

Yeah cracker you twit :P, you are one of the only people that really neeed one in your V6 and you are the one that doesn't have one , if you had a factory smooth idle and an extra 10 rwkw you would be happier.

Silent son, any series one VN executive will be quick as it is. infact they are about the only Commodore that doesn't benifit much from a new tune (unless it's been modifed a bit) this is because the factory thought they were building a race car when they stuck the V6 in the VN, I dont know what they were thinking really but they certainly toned them down alot in the later models :P

lol green foam it runs not to baldy just it doesnt idle when cold and the fuel economy anit great but it doesnt ping, would you be able to help me out i understand ur pretty handy with burning chips?
im thinking of putting it on a dyno t get some af figure as i want to run nitrous through it soon 50-100hp shot heheh xmas pressie, iv finished school and have started to get some money look out streets or melbourne

[88GreenVN]

I now have a AWUY chip to reprogram - any body able to help?

[SiLeNt-SoN]

If i was too look under the hood where abouts will i find the chip located, and ill let ya know what chip it is lol

thanks

[Morton]

hehe, you'll find the chip INside of the car Passenger side, in fact. Down behind the lower left kick panel, where your mate's feet would be, inside a big metal box. **** around for a bit and you'll figure it out

edit: hey greenfoam, you mention the VN chips being a bit of a firecracker for a VP - (goddamn you're a wealth of information) - I happen to have both an APNX and an ATFY chip on me. Aside from one being '88 and the other being '89, is there any difference between the two? Either you would suggest being a better bet to whack in a '91 exec?

[Doctor Bob]

If i was too look under the hood where abouts will i find the chip located, and ill let ya know what chip it is lol

thanks

there are instructions on my website for removing the memcal
www.memcals.com

[greenfoam]

hehe, you'll find the chip INside of the car Passenger side, in fact. Down behind the lower left kick panel, where your mate's feet would be, inside a big metal box. **** around for a bit and you'll figure it out

edit: hey greenfoam, you mention the VN chips being a bit of a firecracker for a VP - (goddamn you're a wealth of information) - I happen to have both an APNX and an ATFY chip on me. Aside from one being '88 and the other being '89, is there any difference between the two? Either you would suggest being a better bet to whack in a '91 exec?

ATFY runs slightly more timing than APNX so go with that one but there's not much in it

But if you compare the wide open throttle spark of ATFY 1990 to the series two AWUY 1991 you can see a big difference (The VP tunes are the same or about the same as AWUY) Try the ATFY and see if you can tell the difference

ATFY AWUY
28.83 24.96
28.13 23.91
27.07 24.96
26.02 22.15
24.96 22.15
23.91 20.04
21.09 18.98
18.98 15.82
13.01 10.90
8.09 4.92
4.92 2.81
4.92 4.92

[PaRaDoX]

stock vn + stock tyres = smoke....

i dont think the grandpa's wanted burnout machines thats why the changed the cam :P mine still sounds crazy and dosnt gain much from a tune...

[Morton]

Thanks for the info, foamy Sounds interesting - I'll try it this weekend, and let you know how it goes.

[88GreenVN]

Drove the VN Wagon around abit today with the original ATFY4410 in it and it seams to changer smoother and idle much better. Should have checked the memcal sooner (the replacement ECU had a AWUY9398 memcal). Or am I just thinking its better and tomorrow will be.....

Does the memcal affect the shift points for the auto?

Puzzled on this.

[Morton]

Nah, not at all. Old-fassioned autos, all controlled internally.

[88GreenVN]

Just done a fuel run with ATFY4410 memcal back in the car and WOW what a diffence. 9.5L/100kms compared to 13-14L/100kms with the AWUY9398 memcal I'd been getting.

Note dont use VP chips in VN cars

Any disagree with this statment?

[90VN55]

but what was the power like? more/less

[88GreenVN]

but what was the power like? more/less

No way of telling for real eg Dyno but it ran heaps better - could have been a dodge VP memcal. Dont know how to test it...
The ECU stopped the car from stalling at last but had paint sealer on it for warranty so I didn't wish to break this at the time and loose any warranty.

But I'd say it had its old power back after being very lazy for the poast 6 months and very fuel hungry.

[SiLeNt-SoN]

Hey,

I had a look today for the chip, but could not see one, I have to go for a blue slip here in nsw tomory, and im just worried now about the sports zorst and the lowerd springs, does anyone no if i will be safe, or will i need to change it all over for the blue slip??

[88GreenVN]

Hey,

I had a look today for the chip, but could not see one, I have to go for a blue slip here in nsw tomory, and im just worried now about the sports zorst and the lowerd springs, does anyone no if i will be safe, or will i need to change it all over for the blue slip??

You haveto take the ECU out (2 screws) and take the top off. - 5 min job to see what memcal you have.

Dont know about blue slip we are South aussies.