#1
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Do I Need A Remap?
Hi all, over the weekend I change my standard cat for a sports cat. Just managed to get it ready for the tunnel run. I be bothered changing it very year for the mot. The only is that in either 4th of 5th gear with full boost it will not go above 6000 revs. It’s also bit jerky. Is it cutting the fuel off?
Very thing else is fine with the car. So the big question is do I need JGM to work his magic? The only other mod I've done is the exhaust and a panel filter.
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#2
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Hi
What year, model etc? Thanks |
#3
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Sorry should said. It's a Classic MY99, so a ver 5, STI.
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#4
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I would say yes you do need a mapping sesh. Sounds like she running rich?
Are you getting a slightly "fuelly" smell at start up? Also, is the sportcat new or 2nd hand? |
#5
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I don't smell that much fuel than I normally do btw and the jerkyness only happens on boost.
The cat is brand new from scoobyworld, its the ninja one.
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You'll never learn to become Old and Wise if you were never young and crazy!!! Last edited by DM; 26-10-2009 at 02:04 PM. Reason: Add more info |
#6
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I reckon you need Simon to have a look to be safe.
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#7
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I'll email him and see what he says.
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#8
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E-mailed JGM he says it sounds like it is overboosting, so looking to down the Simtek route.
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#9
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Quote:
the 100CEL sports cat should not make that much difference to the boost as the cat still provided a levelof restriction that would not be there if it was a full decat. if it is overboosting then the restrictor pill needs replacing for about £1.00 or even make the hole in the restrictor larger by 0.1mm. I think the VF28 Turbo on the STi 5 runs a 1mm restrictor in the boost control hose.. You could try the larger restrictor from a TD04 Equipped UK car or 2001> WRX. I have a few kicking about if needed. Would also be worth cleaning the pipes to/from the boost controlsolenoid with car cleaner as they may be partially blocked with oil/dirt. |
#10
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After reading your post 5 times (about the restrictor pill) and a google search. I think I understand a bit about it. But I am not completely sure about it or where to if it or cleaning the pipes to/from the boost control solenoid. I am not that good with cars yet
I did read this pdf about it, from here http://www.cobbforums.com/forums/showthread.php?t=32552 I'll try to see if I can see the pipe they are talking about. But if I could get one of these pills off you that will be great. Just wondering if it is the 'open neck' designed that is cause it?
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You'll never learn to become Old and Wise if you were never young and crazy!!! Last edited by DM; 26-10-2009 at 09:35 PM. Reason: spelling |
#11
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the sti restrictor pill is 0.8mm the uk 1mm..
if you look into a sportscat they are not that restrictive.. usually knocks all of 5bhp off a 300bhp car using a sportscat rather than decat. the issue is the open neck downpipe causing the boost to rise to boost cut as it spools. thats ignoring the fact that the standard map is very advanced on timing and changing to a sportscat and therefore increased the boost it would be very wise to get it setup for it. Simon |
#12
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Quote:
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You'll never learn to become Old and Wise if you were never young and crazy!!! |
#13
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Thanks to JGM for mapping my car. He's a true Gent.. enough said
The only downer is that a nice BT Sales man decided to give my car whack up the back side.
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#14
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Another Jollied client.
Shame about the BT Van though mate, that's a bummer. |
#15
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Quote:
hopefully just bumper bar and bumper.. Simon |
#16
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Just awaiting a call from the body shop now.
I've been told to get it on the dyno
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#17
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bring it over to surrey rr when I am next there and I'll tweak it
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#18
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Cheers JGM
Just let me know when you are next there. I see if I can make it
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