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Author Induction kits + Exausts cause Jerky Throttle??
MoNkEy MaGiC
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Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
8th Aug 04 at 10:45   View User's Profile U2U Member Reply With Quote

car has seemed jerky as i release the throttle over the last year!!!!!
i havnt checked the ICV or the throttle body....but have read many posts were that dont solve the problem either!

i was thinking.....could the increased air intake from the induction kit and better flowing exaust cause this jerkiness???
or even the type of petrol i use, Shell-Unleaded??
if so what could be a cure? uni-chip? super-chip? re-map?

[Edited on 08-08-2004 by MoNkEy MaGiC]
5door_jon
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Registered: 23rd Apr 04
Location: tyldesley manchester
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8th Aug 04 at 11:46   View User's Profile U2U Member Reply With Quote

if its a k&n 57i (or similar) it will cause a few problems as is close to the engine and sucks too much hot air in , i got rid of mine in about 2 months due to this
MoNkEy MaGiC
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Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
8th Aug 04 at 12:18   View User's Profile U2U Member Reply With Quote

i dont keep the air feed connected on my viper induction kit...so it is similar to a KnN in terms of hot air sucking in!

but.....its only jerky when i relaese of the throttle above 10-20mph BY WHICH their would be enough cold air flowing into the engine anyway???
and i have 2 air feeds!
morrisdaboss
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Registered: 11th Jun 03
Location: Feltham, have you?
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9th Aug 04 at 08:24   View User's Profile U2U Member Reply With Quote

could try boxing the induction kit in a bit more - my mate had a similar prob and managed to weld mesh round the base of his - looked pretty sweet too.
Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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9th Aug 04 at 08:30   View User's Profile U2U Member Reply With Quote

i wanna have a moan, why have you not cold the cold air feed on ya viper. I DONT use mine either because with it on the car has a HUGE flat spot from 4000rpm-5000rpm, simply take it off and it goes away. Do you get this too it fooks me off, ?
ffls
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Registered: 29th May 02
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   9th Aug 04 at 09:58   View User's Profile U2U Member Reply With Quote

yesterday I fitted my race X induction with a 10cm cold air feed to the filter.I used K+N oil on the filter, and I have to report no jerkiness or flat spots
The best 35 spent, it's that bit cheaper than the Viper (ok it's not carbon fiber but...it works)
blundey
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Registered: 25th May 04
Location: Flitwick, Bedfordshire
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9th Aug 04 at 11:08   View User's Profile U2U Member Reply With Quote

*cough* USC *cough*
MoNkEy MaGiC
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Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
9th Aug 04 at 11:10   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Greasemonkey
i wanna have a moan, why have you not cold the cold air feed on ya viper. I DONT use mine either because with it on the car has a HUGE flat spot from 4000rpm-5000rpm, simply take it off and it goes away. Do you get this too it fooks me off, ?


ive never really driven the car hard with the cold feed on but yes in general it just didnt pull as hard with it on!! probly coz it sucks in a LOT more air with it of...
but main reason i took it of is coz it sounds like a beast after 3k revs dont you get this???

it jerks if i release the throttel suddenly, somtimes it ok not so bad and somtimes it really bad, could be due to the weather and how dense the air is??

i think its coz to too much air comming in from what the car thinks it should be getting and then as i release the throttel it jerks as its suddenly cut it of, which is why i think a uni-chip? or a remap? is needed?

[Edited on 09-08-2004 by MoNkEy MaGiC]
ffls
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Registered: 29th May 02
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   9th Aug 04 at 11:11   View User's Profile U2U Member Reply With Quote

blundey, don't cough
use the the spare money on a Mantzel manifold, I did
ffls
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Registered: 29th May 02
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   9th Aug 04 at 11:14   View User's Profile U2U Member Reply With Quote

Monkey magic,

I've got a superchip and have used an hammer to increase fuel pressure because my engine was running too lean

 
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