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Author Topic: Full fat  (Read 2790 times)

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Elite Pete

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Full fat
« 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  :)
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waspy

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Re: Full fat
« Reply #1 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
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Jimbob

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Re: Full fat
« Reply #2 on: 11 October 2010, 18:14:00 »
Enjoy  :y
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Omegatoy

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Re: Full fat
« Reply #3 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
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Elite Pete

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Re: Full fat
« Reply #4 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  ::)
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bp_porcaro

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Re: Full fat
« Reply #5 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?
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Psychoca

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Re: Full fat
« Reply #6 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...
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Elite Pete

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Re: Full fat
« Reply #7 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 :(
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bp_porcaro

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Re: Full fat
« Reply #8 on: 23 October 2010, 10:38:38 »
So is there a solution, or is it something we have to live with ??
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Elite Pete

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Re: Full fat
« Reply #9 on: 23 October 2010, 10:44:34 »
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So is there a solution, or is it something we have to live with ??
The supplier of the chip is working on a solution ;)
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TheBoy

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Re: Full fat
« Reply #10 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.
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Omegatoy

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Re: Full fat
« Reply #11 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
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TheBoy

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Re: Full fat
« Reply #12 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
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Psychoca

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Re: Full fat
« Reply #13 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...
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Omegatoy

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Re: Full fat
« Reply #14 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?
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