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Author throttle bodies!
M-IKE19
Member
Registered: 25th Nov 07
Location: highlands Drives; Astra GSi Turbo and Corsa GSi
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11th May 09 at 16:26   View User's Profile U2U Member Reply With Quote
hi, i have a c16xe corsa that has piper cams, vernier pullies, dbalis tbs, 4 branch manifold, straight through powerflow exhaust and gotec pro managment! the problem is that i sent it away 2 get managment fitted and now have it back and it dnt seem that quick until 6000rpm and only revs 2 7200rpm he sed he didnt adjust the pullie as the timin was ok, just wounderin if i can get it quicker further down the revs!
Linch
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Registered: 4th May 06
Location: Whickham, Tyne and Wear
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11th May 09 at 16:49   View User's Profile U2U Member Reply With Quote
Seems the cam timing and ignition timing has been moved to far up the rev range! Yes you can adjust the cams...but then your map will be useless and will have to have it mapped again, did he set the cams or you?
M-IKE19
Member
Registered: 25th Nov 07
Location: highlands Drives; Astra GSi Turbo and Corsa GSi
User status: Offline
11th May 09 at 17:12   View User's Profile U2U Member Reply With Quote
do u do that with the vernier pullies! he neva had a rollin road he just live mapped it!
Linch
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Registered: 4th May 06
Location: Whickham, Tyne and Wear
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11th May 09 at 17:22   View User's Profile U2U Member Reply With Quote
Yes you do it with the verniers, and just live mapped it? dose it have a nock sensor? I cant imagine its done right without being on a rolling road, with proper nock equipment! I wouldn't drive the car if I was you!
M-IKE19
Member
Registered: 25th Nov 07
Location: highlands Drives; Astra GSi Turbo and Corsa GSi
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11th May 09 at 17:27   View User's Profile U2U Member Reply With Quote
wots a nock sensor! robin from jam sport told me 2 use this guy as i stay 2 far from them! they supply the guy with the gotec stuff! the car runs good but just not amazed with the acceleration and no pickin up 2 6000rpm!
Linch
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Registered: 4th May 06
Location: Whickham, Tyne and Wear
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11th May 09 at 17:33   View User's Profile U2U Member Reply With Quote
It shouldn't need a nock sensor on stand alone management, all the ignition timing is in the map, I cant see how he can set that up on the road, without using nock equipment, did you see him live map it? any headphones or anything he plugged into the actual engine bay?

[Edited on 11-05-2009 by Linch]
M-IKE19
Member
Registered: 25th Nov 07
Location: highlands Drives; Astra GSi Turbo and Corsa GSi
User status: Offline
11th May 09 at 17:37   View User's Profile U2U Member Reply With Quote
no he had the car 4 3 days he just told me the boy that works 4 him drives and he does the laptop/computer thing, when i put the pullies on they were set 2 half way and thats where they r now! a mate sed that thats where they sit when stardard!
Linch
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Registered: 4th May 06
Location: Whickham, Tyne and Wear
User status: Offline
11th May 09 at 17:41   View User's Profile U2U Member Reply With Quote
So the ignition timing is at standard, do you know what cams they are? after market cams have different ideal TDC to standard ones, that is why the power is so far up the rev range id imagine
M-IKE19
Member
Registered: 25th Nov 07
Location: highlands Drives; Astra GSi Turbo and Corsa GSi
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11th May 09 at 17:44   View User's Profile U2U Member Reply With Quote
i got them second hand, i got told they r piper (260?) fast road cams! they r def high lift as wen had them on std engine were lumpy! wot mods do u have 2 get the 157.88 bhp
Linch
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Registered: 4th May 06
Location: Whickham, Tyne and Wear
User status: Offline
11th May 09 at 17:50   View User's Profile U2U Member Reply With Quote
So this should help you,

Fast Road - Power Band 1800-6800 -Duration 256 Inlet 256 Exhaust - Valve Lift .372" 9.45mm Timing 18 -58/58-18 Full Lift 110deg - Lift@TDC.032" 0.81mm

I had on my last engine Standard cams, 30Degree inlet, Jenvey TB's, Standard Exhaust Manifold with cat back system, and gotech MFI Pro, mapped on a rolling road, Im in the middle off a new spec engine
M-IKE19
Member
Registered: 25th Nov 07
Location: highlands Drives; Astra GSi Turbo and Corsa GSi
User status: Offline
11th May 09 at 17:54   View User's Profile U2U Member Reply With Quote
u wud hope that helped me but dnt understand that stuff 2 b honest! but u wud says its 2 do with the cams not bein set up properly or at all!
Linch
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Registered: 4th May 06
Location: Whickham, Tyne and Wear
User status: Offline
11th May 09 at 17:55   View User's Profile U2U Member Reply With Quote
Well the Cam timing will have alot to do with it I think.
M-IKE19
Member
Registered: 25th Nov 07
Location: highlands Drives; Astra GSi Turbo and Corsa GSi
User status: Offline
11th May 09 at 17:58   View User's Profile U2U Member Reply With Quote
i have lightened and balence fly wheel 2 and still slow 2 6000rpm! do u no a rough price 2 get the cams set up on rolin road! who did ur work
Linch
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Registered: 4th May 06
Location: Whickham, Tyne and Wear
User status: Offline
11th May 09 at 18:04   View User's Profile U2U Member Reply With Quote
I dont know, And the company that did my work I will have to u2u you
M-IKE19
Member
Registered: 25th Nov 07
Location: highlands Drives; Astra GSi Turbo and Corsa GSi
User status: Offline
11th May 09 at 18:06   View User's Profile U2U Member Reply With Quote
cheers 4 that! il fone them the morn and c if they can help with it!
M-IKE19
Member
Registered: 25th Nov 07
Location: highlands Drives; Astra GSi Turbo and Corsa GSi
User status: Offline
11th May 09 at 21:13   View User's Profile U2U Member Reply With Quote
any1 else got ideas
john_c20xe
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Registered: 10th Feb 08
Location: Eastbourne, EastSussex
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11th May 09 at 21:14   View User's Profile U2U Member Reply With Quote
maybe broster can shed some light?
M-IKE19
Member
Registered: 25th Nov 07
Location: highlands Drives; Astra GSi Turbo and Corsa GSi
User status: Offline
11th May 09 at 21:18   View User's Profile U2U Member Reply With Quote
u2ud him on sun but no reply as of yet! cheers

 
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