Remapping?? On Rollers or Road/Track??

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M3Jimbo
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Thu May 12, 2005 3:40 pm

Just had i right result!! I was speaking to the bloke who makes the viper
chips! not about the chips but about a remap! He says he can
remap it for me for Ԛ£120 which is furking cheap! 8O He also had a rant
about the fact that he will map it on the road or a track not a rolling road!
He got quite upset when i said "is that better?"!! :x he went off on one about
loadings and air flow and race cars! :?

So by what he says yes it is better!! have any of you had any expirience
in this?????

The cars not standard! and i dont belive in chipping so thats ruled out!

Or is there anyone on the zone who can do it i have access a set of rollers
localy??
Turbo-Brown
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Thu May 12, 2005 5:04 pm

Think if you're mapping from scratch the RR's better as it lets you hold one engine speed regardless of load which you can't really do on the road/track.

That said, any car that's been mapped on the rollers will probably need fine tuning in real world situations.
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e30_Turbo
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Thu May 12, 2005 6:42 pm

I'll back Alex on his points there. As I understand it you remap the car on the rollers to give a good base map and fine tune under driving conditions, however most ECU's can't be mapped on laptops etc and need big computers to do the work so I'd say a fair amount of people just live with the RR tune they get.
And what is he going to store this new map on? a chip, so you're gonna chip it either way really. To get the best possible performance you need a fully mappable ECU like emerald or MBE or if you can afford it MOTEC are the daddies but mega Ԛ£Ã”šÃ‚£Ãƒ”šÃ‚£!
The std ECU's are not designed for remapping and tuning, they have set parameters and there's not much adjustment to be had. :D
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E30Adam
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Thu May 12, 2005 7:29 pm

M3Jimbo wrote:Just had i right result!! I was speaking to the bloke who makes the viper
chips! not about the chips but about a remap! He says he can
remap it for me for Ԛ£120 which is furking cheap! 8O He also had a rant
about the fact that he will map it on the road or a track not a rolling road!
He got quite upset when i said "is that better?"!! :x he went off on one about
loadings and air flow and race cars! :?

So by what he says yes it is better!! have any of you had any expirience
in this?????

The cars not standard! and i dont belive in chipping so thats ruled out!

Or is there anyone on the zone who can do it i have access a set of rollers
localy??
Not a brummie by the name of Jayson per chance??

I'd have a look at his feedback on ebay, username = chippeduk
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M3Compact
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Thu May 12, 2005 7:41 pm

Turbo-Brown wrote:Think if you're mapping from scratch the RR's better as it lets you hold one engine speed regardless of load which you can't really do on the road/track.

That said, any car that's been mapped on the rollers will probably need fine tuning in real world situations.
Agreed.

M3Jimbo, I looked into running an S14 on Motec and I spoke at length to a very well recommended race engine tuner. He told me that a RR would get the max power ok. But for a road use car, a whole day's 'real world' driving with the laptop on the passenger seat would be required.

I once drove a Scooby with Motec on the road for someone while they re-programmed it, it had been to the RR and was giving satisfactory max power. We were constantly stopping, and using different throttle positions, inclines etc. It was certainly much more pleasant to drive afterwards, possibly not any more powerful tho' as we didn't do much with the higher rev range, full throttle situations. (Not easy on the road!)

With an 8lb flywheel, 8750 revs + whatever else you've done, I would guess a lengthy/fiddly session may be in order.

I know very little/nothing about re-programming standard ECUs Jim, but I'd make sure I used someone with S14 experience if you're using 8750 revs. :eek:
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Thu May 12, 2005 8:01 pm

Maxx Alpha N, very highly regarded in S14 circles, not cheap though.
Emerald, superb in all respects
Motec, again superb but Ԛ£Ã”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£
MBE, now theres something worth looking into, excelent results to be had via this proven route

talk to Nigel at bexleys, best bet for more ooomph on an M3, anything that ditches the AFM IMHO.

As you said from the beginning though, Ԛ£120 is a lot cheaper than all the alternative products listed above, depends what you want to achieve, and the budget allotted.
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DannyB
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Thu May 12, 2005 11:41 pm

I've had a number of my cars live mapped on a rolling road, the problem is that many tuners dont actually now how to use there rolling road to its full potential, I have a very good team that set my cars up and never had a fault caused due to it being mapped in these conditions and I'm running a 400+hp engine and its still drives great in all area's I.E cold start and cold running, slow town driving, motorway and extreme track use(which it was built for)

P.s the engine was not a bmw, however my point is about the rolling road and mapping.
M3Jimbo
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Fri May 13, 2005 12:47 am

Thanks for the info lads a lot of you have mention people you've used but
with no names or contacts a few phone numbers would be handy and
locations if pos?

I've heard very mixed reviws about bexelys! they have there name
mentioned a lot!!! Unfortunatley 70% of what ive heard is along the lines
of arragant pricey not overly helpfull not all that reliable! Bit of a shame
realy cause the magazines seem to like them! But then they are doing
work for a mag and some advertising!!!

Also what sort of money do the standalone ecu's go for??
Whats the MBE route??
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Fri May 13, 2005 12:55 am

MBE - engine management, same sorta thing as emerald just different company.. dta is another option
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M3Compact
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Fri May 13, 2005 1:49 pm

dta is another option
DTA seems to be a more popular option than Motec for S14s. (P8PRO system, expensive tho'.)
The engine
BMW Model Code: S14 (used in BMW M3 from 1987-1990)
Capacity: 2,5 L
BMW M-Sport block and crank
Verdi rods
JE pistons
Alu head BMW M-Sport DTM spec.
BMW M-Sport carbon fibre air box
Distributor less ignition
DTA system (you would know)
320bhp @ 9.200 rpm. Max rev. 9.600 rpm
Paul at DTA is well helpful. 8)

http://www.dtafast.co.uk/
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