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View Full Version : Will vts on 708s unmapped pass MOT?

AlexR
25th February 2007, 21:45
As i posted on ssc. I would like to know if anyone with 708s unmapped has passed an mot and how close it was? as i won't be able to get it remapped before mot, and screw putting std cams back in!

cheers
riggsy
26th February 2007, 01:16
Would also like to know the answer to this....

What would make you think they wouldnt pass with out being remapped?
AlexR
26th February 2007, 08:31
Would also like to know the answer to this....

What would make you think they wouldnt pass with out being remapped?

the fuelling won't be spot on so i'm not sure if they will pass. i've got mot next week and i am putting them back in today so i'm gonna find out lol
bloz
26th February 2007, 12:13
I had a VTR with CAMS and no re-map and that passed MOT, sorry its not VTS but should help you out, was very lumpy on start up though, but make sure you take it to MOT warm ;-)
saxoash
26th February 2007, 12:52
Should pass as the remap would increase the fueling to match the extra air getting into the engine and as you havnot had it done the fueling will be the same as a standard car
craig180
26th February 2007, 13:02
I recently had to remove my catcam 708s and ecu because, no matter what, it would not pass the emmissions! That was mapped but not sure who by.
Running standard "chipped" ecu and cams it flew through
Mystic
26th February 2007, 13:03
Yeh i think it would pass wouldnt it. The fueling hasnt been touched so it will run lean rather than rich. So i guess it would acctually be lower emissions?
riggsy
26th February 2007, 13:43
Just got an email back after asking qep and they said they dout it will pass an mot as the idle can be very erratic!
bloz
26th February 2007, 14:46
Mine was funny erratic is the right word, but like I said if the engine is warm its no where near as bad
AlexR
26th February 2007, 14:53
with cams the engine will breath less at low revs in theory and more at higher revs so it will run rich but in theory it will be under lambda control so should be pretty close to spot on. then again i have 3.5 bar fpr so it will be overfuelling even more.

such a hard decision, mot is booked!
Mystic
26th February 2007, 15:02
In that case couldnt you arrange for an emissions test to be done first to see how it goes? Although by the sounds of things this would be a fail.

Or if you dont have time to fit the std cams see if the garage could fit them for you & you will just need to refit the 708s when your ready to go for a remap?

How long do you have left of your MOT? Enough time to maybe cancel this one & have it remapped even if it would mean having the car of the road for a few days untill you can get the test rebooked?
VTS_16v_Boy
26th February 2007, 15:11
Would it not simply pay you to take a quick run to a MoT station and ask them to check the emissions before the test day?
riggsy
26th February 2007, 16:38
Yeah ask to get it checked first as you think it might fail!

I think it will fail being honest. Sucks doesnt it.

Let us know how it goes Alex :)
bullit
26th February 2007, 19:34
alex im sure your know someone that can pass it. wink wink

mine went through the other day unmapped on similar cam and decatted :P