Best place to remap a VT2 GTS-R SC?
Discussion
Turbo T said:
Thanks, do you have a website or tel # for RapidGB?
I emailed Wortec a few days ago but sofar no response.
# I emailed Wortec a few days ago but sofar no response.
www.rapid-gb.co.uk/
wortec2 said:
I have checked an we have recived no email from you. Our email is info@wortec.co.uk
My fault, sent it to infor@wortec.co.uk. Now resent.Thanks to Duncan from Wortec for a very helpful/detailed response to my email.
OK the car was apparently the first SC conversion that LSV did to a GTS-R, and as such is not intercooled, but uses an ERL aquamist WI system to try and cool the charge temps.
So the first job will be finding a reasonably priced Intercooler kit for the car, either that or building one myself.
I see CAPA sell an IC kit, and Mark @ Rapid has quoted me for a supply/fit price. Having done lots of installs on Supras I am more than happy to do it myself,so if anyone has any links to aftermarket IC kits it would be greatly appreciated.
OK the car was apparently the first SC conversion that LSV did to a GTS-R, and as such is not intercooled, but uses an ERL aquamist WI system to try and cool the charge temps.
So the first job will be finding a reasonably priced Intercooler kit for the car, either that or building one myself.
I see CAPA sell an IC kit, and Mark @ Rapid has quoted me for a supply/fit price. Having done lots of installs on Supras I am more than happy to do it myself,so if anyone has any links to aftermarket IC kits it would be greatly appreciated.
You can map fuel without a dyno using a wideband controller.
You only need a dyno for spark timing IMO. Of course a dyno lets you do the whole lot faster than on the road, as logging those full throttle 6000rpm power runs on the motorway is harder than it sounds, especially when you are trying to fill certain cells in
In fact a road wideband is better than a dyno one as its in the stock location pre-cat so more accurate. Tailpipes ones are not as good.
I realised that there are certain areas of spark you cant really tune on the dyno, anything under idle vacuum for example is very hard. You cant hold the engine at a steady low pressure state (Basically decel) as once it becomes steady vacuum will decrease. So you have to do a quasi guess of spark there. Even an engine dyno would struggle, you would have to just log tractive effort in the split second it was there and via trial and error optimise it. Though seeing as its decel there isnt much point... the only reason I mention it is that if the spark is too far out you can get it doing weird things like surging and jerking..
Then there is idle tuning, cranking/startup, stall savers, aircond load adjustment, speedo calibration, radiator fan adjustment etc, all done off the dyno normally. No sane tuner will just do a dyno tune, virtually all will test it on the street.
You only need a dyno for spark timing IMO. Of course a dyno lets you do the whole lot faster than on the road, as logging those full throttle 6000rpm power runs on the motorway is harder than it sounds, especially when you are trying to fill certain cells in
In fact a road wideband is better than a dyno one as its in the stock location pre-cat so more accurate. Tailpipes ones are not as good.
I realised that there are certain areas of spark you cant really tune on the dyno, anything under idle vacuum for example is very hard. You cant hold the engine at a steady low pressure state (Basically decel) as once it becomes steady vacuum will decrease. So you have to do a quasi guess of spark there. Even an engine dyno would struggle, you would have to just log tractive effort in the split second it was there and via trial and error optimise it. Though seeing as its decel there isnt much point... the only reason I mention it is that if the spark is too far out you can get it doing weird things like surging and jerking..
Then there is idle tuning, cranking/startup, stall savers, aircond load adjustment, speedo calibration, radiator fan adjustment etc, all done off the dyno normally. No sane tuner will just do a dyno tune, virtually all will test it on the street.
choice of Efilive or HP Tuner - ringram sells Efilive and RapidGB and LSV use that to tune the cars. Wortec dealers use the HP Tuner I believe. Quite a few of us on here have a copy of Efilive we've bought from ringram, takes a while to get into it if you're a noob like myself but with perserverance its a very powerful tool and excellent online support.
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