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02-07-09, 05:55 PM
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#1
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Site Supporter
Join Date: Jul 2007
Posts: 952
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Quote:
Originally Posted by Dave ZS-X
i dont doubt these maps are gaining something but i would like to see it verified before and after on another set of rollers.
I have seen my own car and other kv6's rolling roaded and each time it was run up it made slightly more power with no tweeking at all.
Mine was run at a place in chesterfield, brand spanking rollers and a pukka bloke and i was looking for some power i thought i was misssing, as it happened car was perferct and first time it was ran up it made 200 dead but we did multiple runs as we were checking afr's etc but we actually changed nothing at all yet each run it made just a nadge more power till the final run when it made 205 bhp...thats not the only time ive seen this either, you always need to do at least 4-5 runs imo to start getting a true reading and roller days only run once, twice at best.
Dave
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I agree dave. A few runs are necessecary for the rollers to adjust for the car in question imo. Likewise i thought i'd be adjusting some parameters to gain a few horses when i went down to see matt but as it happened it made 210 straight away and ended at 213 after a few runs. I think matts rollers are pretty accurate as he reckons he put on his audi a3 which is factory spec and it made the exact figure the company quote. As we all know though rollers are funny things and can be different werever you go.
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02-07-09, 06:17 PM
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#2
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Member
Join Date: Jun 2008
Location: Rainham, Essex
Posts: 4,608
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Well I'll be happy to do this then. I'll get my car dyno'd where it was done last time and got 185.3 (this was before the exhaust), I'll get my remap done and go back to the rollers to see what it says
Now who wants to pay for my remap
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02-07-09, 06:26 PM
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#3
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Member
Join Date: Dec 2007
Location: Southampton
Posts: 3,078
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mine was the same, first run at reidy remaps, with exhaust and induction, it made 179 bhp. i said to matt thats low so he re-ran it, second time round it was 184 bhp iirc???? my car gained 5 bhp in 20 seconds?? without touching anything.
whilst he was remapping it, he done 2 runs, one immediatly after the another , he didnt change anything, it was run on the same map and it lost 4 bhp. 5 minutes later he re ran it again and it made what it did the first time round.
rolling roads are never going be 100% accurate, they are just a rough figure.
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02-07-09, 07:23 PM
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#4
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Member
Join Date: Jul 2007
Posts: 539
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another thing, superchips did a re map for the zs 180 that was supposed to gain 12 bhp but none of it was top end it was all mid range.
George knows his kv6's and he did 180 re maps that also showed no top end gain it was all mid range, roverdose also tried it with no joy...so if superchips and george and roverdose who lets face it all know their stuff, and all tried and failed to find extra peak power , then how come some bloke whos never seen a kv6 before can all of a sudden find a nice lump of extra top end power. ??
Dave
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02-07-09, 08:20 PM
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#5
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Site Owner
Join Date: Jul 2007
Location: Waterlooville, Hants
Posts: 24,096
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So where has all of this come from then? A few weeks back it wasn't an issue and now some people have had success he gets questioned? Sounds like sour grapes to me. In order to question anything you will need hard facts to prove it beyond all reasonable doubt. Just because other 'experts' may not have succeeded does not mean they are correct in their assumptions or know their stuff.
In order to know something you must first understand it and therefore under the cause and effect.
Well if people have such an opinion no wonder we get nowhere with research and development, never give anyone the benefit of the doubt and experience. I went into this with an open mind and the result was better than expected. 28 years of engineering and a Masters Degree has taught me plenty and that is based on evidence and not bullshit.
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03-07-09, 01:26 AM
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#6
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Member
Join Date: Aug 2007
Posts: 268
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Quote:
Originally Posted by stamford
So where has all of this come from then? A few weeks back it wasn't an issue and now some people have had success he gets questioned? Sounds like sour grapes to me. In order to question anything you will need hard facts to prove it beyond all reasonable doubt. Just because other 'experts' may not have succeeded does not mean they are correct in their assumptions or know their stuff.
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Wasnt it only a matter of time?
If you look back in time there was many ZS 180 owners claiming 200 bhp with very little mods etc ie Back box.Decat and Induction.
Janspeed in Co-Hoots with MG Sport & Racing delved into this with the ZR 160 and the ZS180 and never got over a 20bhp increase with either car.
Quote:
Originally Posted by stamford
In order to know something you must first understand it and therefore under the cause and effect.
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I am sure the said companies know what they are talking about.
MG S&R built some amazing cars and i am sure they knew there stuff.
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03-07-09, 07:55 AM
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#7
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Member
Join Date: Jul 2007
Posts: 539
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Spose if the customers happy thats all that matters but you cant possibly think a multi million pound massively successfull company like superchips who's whole business has been engine re mapping for donkeys years couldnt find top end bhp , yet a small independant garage could.
I had my car worked on by superchips as did Ed and they have access to everything to change any parameter they please yet top end gains were nill to negligible.I remember Ed going to superchips hq at buckingham, and spending a small fortune on live mapping after he had a cat back exhaust fitted and after it all it gained just 1 bhp top end.
If you want some serious bang for your buck slap a small shot of nos on your car, even a small 25 shot will out perform 10 re maps.
Dave
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Re-united with the power of 300 stampeding stallions
Turbo Powaaaah FTW.
Dave
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04-07-09, 11:14 AM
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#8
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Member
Join Date: Sep 2008
Location: West Sussex
Posts: 1,347
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If I had a 180, I'd take it to Matt. Respected forum members have had good results backed up with evidence... if George and whoever else couldn't do it, well the evidence is on paper, so they just can't do what Reidy does... simple.
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To do:- New tyres all round
- Aircon re-gas
- Replace/fix rattly mirror
- Mark 2 dashboard
- Catch tank
- New VIS motors
- Fit bucket seats
- Induction kit
- New spark plugs + oil change
- New exhaust
- Decat
- Fix drivers seat mounting hole
- Reidy Remap
Last edited by starfire039; 04-07-09 at 11:16 AM.
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02-07-09, 08:11 PM
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#9
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Member
Join Date: Dec 2007
Location: Southampton
Posts: 3,078
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he gained about 12 bhp from mine. and a 11 ft lb torque. what ever he has done has definatally made a difference. its definatally better in 2nd and 3rd gear.
looking at my before and after graph, and looking at micks whilst i was down there, there is an improvement all the way through the rev range
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Astra GSi turbo
Regal Autosport Astra GSI Turbo 304 bhp 356 lb/ft
Thorney motorsport Vectra vxr 305bhp 398lbft
Now its time to build a big turbo MG ZS
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02-07-09, 09:18 PM
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#10
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Member
Join Date: Jan 2009
Location: Isle of Wight
Posts: 351
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Just left an M-reg M3 for dead, he was trying bless him but i pulled away nicely along a dual carrigeway. re-map going well
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