Remap questions

Unicorn · 27 Jan 2014 at 21:05

Im looking at getting my Astra H 1.7 Cdti remapped its running fine etc but power in third gear 30-60 really isnt there enough for me

I know it will be nothing like my petrol car but im trying to bring it closer together really.

Ill be paying 225 for my remap at a local (ish) place who will also dyno it heard many good reviews on them but im looking between this and a DTUK box. Im unsure what to go for and why obviously a DTUK box is more changeable but im not after power only for a remap i want Power/economy but with more power through the entire range not just the top end.

Advice on what to do? Can't and won't sell it and upgrade either haha

jono_astra · 27 Jan 2014 at 21:09

Unicorn · 27 Jan 2014 at 21:21

I won't be ever putting it back to standard it will either keep going until im bored and sell as is or till it breaks and gets broken for parts

Don't know if its worth spending the extra 115 for a DTUK box for what could be less results
(129bhp tuned on box vs 140bhp(safe) or 150bhp(maxed out) by remap) I know i could resell it but unsure

allllec · 27 Jan 2014 at 21:25

Save yourself the money and just get one of these.

Unicorn · 27 Jan 2014 at 21:27

allllec said:
Save yourself the money and just get one of these.

Please explain. I don't want to go messing with what i don't really know as iv heard some horror stories of people turning cars into paperweights messing with the ECU

rodenal · 27 Jan 2014 at 21:28

Is the 225 for a dyno run and proper, customised map? Or just a generic one?

Its a bargain either way tbh but if its for a proper customised Map then there's no question for me. I wouldn't out one of those boxes on a car for more than a couple of months. If its a long teem thing spend the little bit more

DeanT77 · 27 Jan 2014 at 21:32

Spend enough to get a proven map from a reputable dealer IMO

allllec · 27 Jan 2014 at 21:48

Unicorn said:
Please explain. I don't want to go messing with what i don't really know as iv heard some horror stories of people turning cars into paperweights messing with the ECU

Sorry was a jive at tuning boxes. As all they are doing is either tricking the ECU in to behaving differently by feeding it false information about temperature/duty cycle of injectors/AFRs etc. Or they are overriding the ECU output to various components such as boost control solenoids.

The above is also achievable with the aforementioned resistors (and this is how it was done "back in the day")

While on most modern diesel engines they is little to no harm in doing it this way it seems utterly pointless to spend such a large amount of money for what is essentially half a job.

At least with a remap the ECU is still in complete control and should it see a condition where it wants to alter things like boost pressure/injection timing etc it can still do this. While such an occasion may be rare. If for any reason something breaks because, for example, the ECU was unable to run the car in a "limp home" mode (properly) you'd be kicking yourself for not getting the remap.

Kind Regards

Alec

Unicorn · 27 Jan 2014 at 22:08

rodenal said:
Is the 225 for a dyno run and proper, customised map? Or just a generic one?

Its a bargain either way tbh but if its for a proper customised Map then there's no question for me. I wouldn't out one of those boxes on a car for more than a couple of months. If its a long teem thing spend the little bit more

Generic map hes designed for a Z17DTH Corsa but it will be tweaked for my car as required and ran on rollers to fine tune.

Thanks for all the info Alec but i think that sounds too risky for me

Proper map may be best here