GolfGTIforum.co.uk
Model specific boards => Golf mk5 => Topic started by: badbwoy27 on 03 April 2012, 20:14
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what boost is requested usually on a mapped stage 1 golf gti mk5 at full throttle and how much should it be roughly holding??????
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What remap do you have?
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custom map from rtech.
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not happy :cry.hopefully can get sorted :grin:
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Why not ask nick at Rtech? I'm sure he will be willing to answer your question.
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I would not worry what that other tuner told you yesterday, we called them posing as a customer wanting a remap and there power claims where a little high and claimed boost to be a little over 1 bar. We are giving you realistic peak numbers not sales numbers. Some mapped cars feel faster as they have induced boost spikes, you should have a little over shoot on the inital spool up, but if you have a weak actuator or, a D revision valve with a worn plastic O ring then you might not get the over shoot.
Safe boost for stage1 with the stock cats is around 1 / 1.1bar with around 0.2bar over shoot in the midrange.
These sort of boost number will give realistic power of around 250-260lbft and 230-238bhp on a good running engine. To get a realistic idea of what power these Mk5s run from stage 1 tuning have a good read here http://www.jkm.org.uk/performance/GalleryRollingroad.htm
Just dont fall for the sales BS numbers.
To extract more power and be safe you will need to do a full exhaust system or at least remove the pre cat. Get your car flowing better and we can unlock you some more power.. :wink: SAFE
Here is a graph from a rolling road day a few weeks ago, its our stage1 custom remap with pre-cat removed, I was on of the highest stage 1 maps of the day.
(http://i1091.photobucket.com/albums/i399/Whitehedgraeme/b9c832d4.jpg)
http://www.mk5golfgti.co.uk/forum/index.php/topic,40255.495.html
Realistic numbers stock, sp1 & sp2
(http://i653.photobucket.com/albums/uu260/r-tech-rr-graphs/MK5.jpg)
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thanks for explaining just gives u doubts when one tuner says 1 thing and then another experienced company says another.just thought i was losing out when they said my car was the lowest figures they had seen on there rolling road and that 0.8 to 1 bar of boost requested is very low for a stage 1 remap.will take your advice and have got the car booked in for pre cat delete then will give u call to get the car booked back in soon.thanks.
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thanks for explaining just gives u doubts when one tuner says 1 thing and then another experienced company says another.just thought i was losing out when they said my car was the lowest figures they had seen on there rolling road and that 0.8 to 1 bar of boost requested is very low for a stage 1 remap.will take your advice and have got the car booked in for pre cat delete then will give u call to get the car booked back in soon.thanks.
We can remove the pre-cat if needed.. :wink:
Your more than welcome to pop down and have a logging session and dyno run, I will explain every thing about logging and the maps and how the power is made, ie peak more dont mean a thing, you could have a really broad torque curve which give more volume/area under the power curves.
Do you have your graphs to had still? If you look at them you will see remapped peak power rpm is not the same as the stock rpm, most of your power will be midrange and I would have a bet on it that yout seeing 50bhp gains at points.. :wink: but only 30odd bhp on the peak numbers.
Dont worry or panic you can always come back at anypoint for tweaks or logging, we aint the kind of company to take your money and disown you.
There are a lot of factors than just boost, the major factors over boost are heat and flow.
Nick
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thanks for the offer of the pre cat removal but already have it booked in now 2moro for it to be done by my local mechanic :smiley:.will defoe give u call when its done and have some time on my hands based around work to book the car in with u so that i can get the map tweaked. still do have rr print outs so will take a good look at them 2nite and c if i can put my mind at rest.thanks for all your help and will c u and the rest of the team soon . :smiley:
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thanks for the offer of the pre cat removal but already have it booked in now 2moro for it to be done by my local mechanic :smiley:.will defoe give u call when its done and have some time on my hands based around work to book the car in with u so that i can get the map tweaked. still do have rr print outs so will take a good look at them 2nite and c if i can put my mind at rest.thanks for all your help and will c u and the rest of the team soon . :smiley:
Did you grin all the way home today!!! lol
Remember flow not boost. :grin:
Nick
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Grin ain't the word. Car is awesome.love the way the power kicks in and the way it just goes.thanks for all your help nick. Big thumbs up to nick and the rest of the Rtech team :smiley:
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Grin ain't the word. Car is awesome.love the way the power kicks in and the way it just goes.thanks for all your help nick. Big thumbs up to nick and the rest of the Rtech team :smiley:
:wink: