Omega Owners Forum

Chat Area => General Car Chat => Topic started by: Elite Pete on 11 October 2010, 16:15:41

Title: Full fat
Post by: Elite Pete on 11 October 2010, 16:15:41
Ive just replaced the semi skimmed chip in my diesel for a full fat one, time for a spin I think  :)
Title: Re: Full fat
Post by: waspy on 11 October 2010, 17:41:15
Let us know how you get on Pete.
I've had mine done & i noticed a difference :y
Title: Re: Full fat
Post by: Jimbob on 11 October 2010, 18:14:00
Enjoy  :y
Title: Re: Full fat
Post by: Omegatoy on 11 October 2010, 19:07:15
LOL addictive aint they? i remember you were extremely happy with the upgrade when you first got it and now you want more?? lololol
Title: Re: Full fat
Post by: Elite Pete on 11 October 2010, 20:56:07
I was getting the judder at 1500 revs which I thought I could live with but after a while it started to get on my nerves  ::)
Title: Re: Full fat
Post by: bp_porcaro on 22 October 2010, 18:10:46
How is this judder related to the chip upgrade?  I have recently chipped my car and now get this judder  :(
mainly in top gear at around 1500 rpm.

Is it something that can be fixed or not?
Title: Re: Full fat
Post by: Psychoca on 22 October 2010, 20:04:51
I get the 1500 rpm judder too...  I solve it by pressing the accelerator, or changing gear...  Big nuisance in slow traffic, makes it look like you can't drive, it is worse in 1st and 2nd than any other gear...
Title: Re: Full fat
Post by: Elite Pete on 22 October 2010, 21:58:30
Quote
I get the 1500 rpm judder too...  I solve it by pressing the accelerator, or changing gear...  Big nuisance in slow traffic, makes it look like you can't drive, it is worse in 1st and 2nd than any other gear...
Mines worse in 4th and 5th unfortunately :(
Title: Re: Full fat
Post by: bp_porcaro on 23 October 2010, 10:38:38
So is there a solution, or is it something we have to live with ??
Title: Re: Full fat
Post by: Elite Pete on 23 October 2010, 10:44:34
Quote
So is there a solution, or is it something we have to live with ??
The supplier of the chip is working on a solution ;)
Title: Re: Full fat
Post by: TheBoy on 23 October 2010, 14:02:05
I've spoken to the chip guy about this judder at 1500rpm, and it only seems to happen on some 427 manuals, yet not all.  Having driven the chip guy's 427 manual estate (now sold, silly arse), its a joy to drive compared to standard, and imho, the 427 with manual box is the best combination. Its just some seem prone to this 1500 judder.

The judder does not show up with the GM chip in, but the current thinking is the upgrade chips are showing an underlying issue with the system that doesn't show up with the GM chip.
Title: Re: Full fat
Post by: Omegatoy on 23 October 2010, 14:18:07
Quote
I've spoken to the chip guy about this judder at 1500rpm, and it only seems to happen on some 427 manuals, yet not all.  Having driven the chip guy's 427 manual estate (now sold, silly arse), its a joy to drive compared to standard, and imho, the 427 with manual box is the best combination. Its just some seem prone to this 1500 judder.

The judder does not show up with the GM chip in, but the current thinking is the upgrade chips are showing an underlying issue with the system that doesn't show up with the GM chip.

agreed it does seem to be random motors that are affected, the one you drove was the white one i take it? very sweet drive that one!! :y
Title: Re: Full fat
Post by: TheBoy on 23 October 2010, 14:36:39
Quote
Quote
I've spoken to the chip guy about this judder at 1500rpm, and it only seems to happen on some 427 manuals, yet not all.  Having driven the chip guy's 427 manual estate (now sold, silly arse), its a joy to drive compared to standard, and imho, the 427 with manual box is the best combination. Its just some seem prone to this 1500 judder.

The judder does not show up with the GM chip in, but the current thinking is the upgrade chips are showing an underlying issue with the system that doesn't show up with the GM chip.

agreed it does seem to be random motors that are affected, the one you drove was the white one i take it? very sweet drive that one!! :y
Yup, the one he swaped with Dennis for the Lexus
Title: Re: Full fat
Post by: Psychoca on 23 October 2010, 19:25:55
Mine is allegedly an Opel Chip, that said, it did come from Lithuania and purchased through FleeBay...

My thoughts are along the lines that it could be the point at which the turbo is due to kick in, causing the power (more specifically the torque) to fluctuate...
Title: Re: Full fat
Post by: Omegatoy on 23 October 2010, 21:17:30
yep just when boost is beginning to climb, foot hard down and it appears to be ok, but normal driving and its there worse on some cars than others, must be  something to do with the pump just beginning to throw extra fuel in for the boost,
just as an aside do any of the affected owners know the number of the chip? im wondering if he has purchased cheap chips and they are not running at the correct m,s, speeds>
i.e should be a faster acting chip? would need to compare the uprated make with the origional vaux chip i guess to find out?
Title: Re: Full fat
Post by: Elite Pete on 23 October 2010, 21:33:12
You can drive around it but your constantly changing gear when travelling in traffic trying to avoid sitting at 1500 revs but the car is so much faster but not quite as fast as a Volvo S60 D5 ::)
Title: Re: Full fat
Post by: Omegatoy on 23 October 2010, 22:46:33
Quote
You can drive around it but your constantly changing gear when travelling in traffic trying to avoid sitting at 1500 revs but the car is so much faster but not quite as fast as a Volvo S60 D5 ::)

lol but it wasnt for lack of trying though Pete? got to admit the d5 isnt slow!!!
Title: Re: Full fat
Post by: Elite Pete on 24 October 2010, 10:31:46
Quote
Quote
You can drive around it but your constantly changing gear when travelling in traffic trying to avoid sitting at 1500 revs but the car is so much faster but not quite as fast as a Volvo S60 D5 ::)

lol but it wasnt for lack of trying though Pete? got to admit the d5 isnt slow!!!
There wasn't much in it and I did end up infront but only by driving at a silly speed, he had small testicles and a big brain whereas I am the opposite :-[
Title: Re: Full fat
Post by: Omegatoy on 24 October 2010, 10:45:22
Quote
Quote
Quote
You can drive around it but your constantly changing gear when travelling in traffic trying to avoid sitting at 1500 revs but the car is so much faster but not quite as fast as a Volvo S60 D5 ::)

lol but it wasnt for lack of trying though Pete? got to admit the d5 isnt slow!!!
There wasn't much in it and I did end up infront but only by driving at a silly speed, he had small testicles and a big brain whereas I am the opposite :-[

you cant do that!!!! yoiur chip is giving you a stutter!!! so it cannot be running well ;D and the td is a stately tourer not a petrol powered mv6 or the like!!! lolololol :y
Title: Re: Full fat
Post by: TheBoy on 24 October 2010, 19:30:54
Quote
yep just when boost is beginning to climb, foot hard down and it appears to be ok, but normal driving and its there worse on some cars than others, must be  something to do with the pump just beginning to throw extra fuel in for the boost,
just as an aside do any of the affected owners know the number of the chip? im wondering if he has purchased cheap chips and they are not running at the correct m,s, speeds>
i.e should be a faster acting chip? would need to compare the uprated make with the origional vaux chip i guess to find out?
I know he has tried a selection of chips, including some out of an unmolested TD ecu I had knocking around here.
Title: Re: Full fat
Post by: Omegatoy on 24 October 2010, 20:26:49
Quote
Quote
yep just when boost is beginning to climb, foot hard down and it appears to be ok, but normal driving and its there worse on some cars than others, must be  something to do with the pump just beginning to throw extra fuel in for the boost,
just as an aside do any of the affected owners know the number of the chip? im wondering if he has purchased cheap chips and they are not running at the correct m,s, speeds>
i.e should be a faster acting chip? would need to compare the uprated make with the origional vaux chip i guess to find out?
I know he has tried a selection of chips, including some out of an unmolested TD ecu I had knocking around here.

aha!! i know he did a batch for another model, and only 78percent worked ok, turned out he had the wrong chips although they actually fitted and worked they were not working as should! they were not processing quick enough or something :o