Louise Posted October 2, 2013 Share Posted October 2, 2013 Hi everyone! someone keeps telling me to get my 350 re-mapped for greater speed. What exactly are my options and what can I gain from getting my Z remapped? is there any reasons not to get it remapped? I was also told if my cars filled up with super unleaded when remapped, I wont be able to go back to normal unleaded- is this true? thank you Quote Link to comment Share on other sites More sharing options...
The Bounty Bar Kid Posted October 2, 2013 Share Posted October 2, 2013 reasons to get your car remapped... 1. Better throttle response. 2. higher top end speed, but when are you really gonna use this? Fuel question... Yes you'll have to use super only, but then again, you should be doing that at the moment. If you're not then you are risking damaging the engine internals every time you go over 3000rpm or over 50mph. Quote Link to comment Share on other sites More sharing options...
Ekona Posted October 2, 2013 Share Posted October 2, 2013 You shouldn't be putting regular 95 in it anyway as it can be catastrophic for the engine. Slightly better power top end, but the real benefit is more torque throughout the rev range and no more limit in 1st and 2nd gears, seriously improves the drivability of the car. Definitely worth doing, but do any breathing mods (intake, exhaust etc) beforehand to make the most of it. Quote Link to comment Share on other sites More sharing options...
Louise Posted October 2, 2013 Author Share Posted October 2, 2013 oh wow I didn't know about the problems normal unleaded could cause! luckily I have always used super unleaded because its too much of a nice car not to. Sounds worth it to me! thanks for both your help Quote Link to comment Share on other sites More sharing options...
HaydnH Posted October 2, 2013 Share Posted October 2, 2013 Definitely worth it, where are you based? There aren't many people that do UpRev (the remapping used for the 350), if you tell you the best people to speak to. BTW, someone really needs to make one of the many uprev/remapping threads sticky! (hint hint mods). Quote Link to comment Share on other sites More sharing options...
Bockaaarck Posted October 2, 2013 Share Posted October 2, 2013 I had the Uprev done by Mark and guys at Abbey, whilst they also fitted a plenum spacer and Stillen Y Pipe. Gained some BHP but more importantly made the car more driveable and improved throttle response significantly. In order to gain the most benefit from an Uprev I would be inclined to combine it with other work, like the fitting of a plenum spacer, exhaust / Y Pipe change at the same time. 95 Ron is a 'no-no' if you want to prevent damage to the engine, so its good to hear you're using super unleaded Quote Link to comment Share on other sites More sharing options...
docwra Posted October 2, 2013 Share Posted October 2, 2013 I bet it improves overall economy as well. Quote Link to comment Share on other sites More sharing options...
Bems Posted October 2, 2013 Share Posted October 2, 2013 So to hijack the thread a little, how much more driveable is an HR engined zed after a remap as I believe they are already a big improvement over a DE engined zed. Quote Link to comment Share on other sites More sharing options...
HaydnH Posted October 2, 2013 Share Posted October 2, 2013 Ignoring the improved power/torque/economy/throttle response/speed delimited reasons for now... One of the main reasos people get this done is to remove the 1st-3rd gear throttle limitation. Some people say the car only allows a percentage of the throttle in these gears but I've been told that's not exactly true. I was told that it's like an elastic band on the throttle, so if you push the pedal to 100% open, you'll receive 100% throttle but it will be a slightly gradual increase to 100% rather than immediate. While this sounds like an obvious improvement for a sports car, I also found that it also has a downside in that if you use your car for in town/stop start driving you have to be more precise with the throttle as the car won't smooth out your actions. It wasn't an issue for me and I'm sure you'd get used to it quickly anyway. HR still benefits a lot from an UpRev. Quote Link to comment Share on other sites More sharing options...
dragon Posted October 2, 2013 Share Posted October 2, 2013 So to hijack the thread a little, how much more driveable is an HR engined zed after a remap as I believe they are already a big improvement over a DE engined zed. Never driven a de z but the difference in my hr is brill i did all the breathing mods before the uprev, filters, berks,invidia Quote Link to comment Share on other sites More sharing options...
NeilMH Posted October 2, 2013 Share Posted October 2, 2013 An Uprev re-map is one of the best value upgrades you can do IMHO. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted October 2, 2013 Share Posted October 2, 2013 Why does everyone think that running on 95 and 97 ron fuel is so bad? all that will happen IF knock is detected is that the ECU will pull some timing and run a default fuel map to prevent det, pretty sure that the the JDM is mapped to run the equivalent of 97ron anyway, as an optimum but it will happily run lower or higher ron fuels, and because the UK Z runs wide-band lambda feedback it will have even less problems adjusting to lower ron fuel. Granted that if you have a remap that is centered around 99ron it would be advisable to run that for optimum power, but all that will happen is if you run 95 or 97 ron is that you will loose a little performance and not that much either, why do you think engines are fitted with knock sensors? Quote Link to comment Share on other sites More sharing options...
ph 7 Posted October 2, 2013 Share Posted October 2, 2013 (edited) I thought the knock sensor on the 350z only works up to 5k rpm..therfore if you are running above it on 95 ron you risk det Edited October 3, 2013 by ph 7 Quote Link to comment Share on other sites More sharing options...
Sam Mcgoo Posted October 2, 2013 Share Posted October 2, 2013 Apparently the DE cannot pull enough timing to eliminate the knock caused by 95 Ron at 3500rpm and over. It is also in the owners manual and on the fuel cap to only use 97 + Quote Link to comment Share on other sites More sharing options...
ph 7 Posted October 2, 2013 Share Posted October 2, 2013 So back on topic, lets say I wanted to have an uprev but I'm not going to do any breather mods other than the exhaust I already have, is it still worth it? From what I have seen, the other breather mods bring minimal gains when looking at a power to pounds spent ratio But lets say I had an uprev to gain back some of the BHP i'd have lost over the years but didn't exceed the original bhp figures, would I then be abe to class it as a remap mod but with no power gain? Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted October 2, 2013 Share Posted October 2, 2013 Why would the knock sensing only work up to 5K makes no sense! although it does ring a distant bell! Again not being able to pull enough timing to cope with lower ron fuel also makes no sense from what in comparison is a fairly advanced ECU, especially on the UK Z. If a lot of older JDM turbo car ECU can deal with a fir amount of knock from low grade fuels by retardation and default map, it just doesn't add up with the much more modern ECU design. I know of a couple of people who have run their DE on 95 ron without problem, and I ran mine on 97 ron. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted October 2, 2013 Share Posted October 2, 2013 So back on topic, lets say I wanted to have an uprev but I'm not going to do any breather mods other than the exhaust I already have, is it still worth it? From what I have seen, the other breather mods bring minimal gains when looking at a power to pounds spent ratio But lets say I had an uprev to gain back some of the BHP i'd have lost over the years but didn't exceed the original bhp figures, would I then be abe to class it as a remap mod but with no power gain? Unless you are going to add an exhaust, decat, plenum spacer etc then there is less reason for a remap, you can get a throttle controller to do the rest of what the Up-rev remap does, as for regaining lost power that would be down to ring seal and unless the engine has been previously abused or has done high mileage you wont have lost anything to notice. Quote Link to comment Share on other sites More sharing options...
NeilMH Posted October 2, 2013 Share Posted October 2, 2013 I would say that the Uprev was worth doing without other mods. The insurance would still need to know about the re-map because of other changes it brings about - e.g. re-profiling the fuel/air in the lower gears, removing the speed limiter, etc (assuming it was insurance you were thinking about). The chances are the change would be in the lower tier % of bhp increase anyway. None of this is a problem with the specialist insurers. Quote Link to comment Share on other sites More sharing options...
ph 7 Posted October 2, 2013 Share Posted October 2, 2013 I'm with adrian flux anyway with all my mods declared so that wouldn't be an issue. given that my car has done 183K now I'm sure I may have lost a few ponies. I just wondered if lets say my 276bhp has dropped to 255 for example and I reclaimed 10 bhp through a remap (all made up figures) then technically my car hasn't had a power increase, just a remap. I always wondered why some of the options on the modifications declarations would say: remap remap 5% increase remap 10% increase etc I always wondered who would have a remap without an increase but I guess the above would be in that category. Quote Link to comment Share on other sites More sharing options...
Will370z Posted October 2, 2013 Share Posted October 2, 2013 I thought the remap was one of the best things i did with my 350z What made it all the more e ident was when i had it removed so i could transfer it to the 370z. Having it removed felt like someone put a pillow over the accelerator, it was far less responsive. 1 Quote Link to comment Share on other sites More sharing options...
ph 7 Posted October 2, 2013 Share Posted October 2, 2013 I may need to stick it on the ever-growing wish list Will..... Quote Link to comment Share on other sites More sharing options...
Will370z Posted October 2, 2013 Share Posted October 2, 2013 Aye, that wish list only gets longer Quote Link to comment Share on other sites More sharing options...
Roscoe Posted October 2, 2013 Share Posted October 2, 2013 I have recently had my hr remapped by Mark at abbey, all I have is drop in filters. The map has made a massive difference to drivability and general running of the car. It is much nicer throttle response (full throttle and light throttle) even in standard spec it gained around 12 bhp Sent from my iPhone using Tapatalk - now Free Quote Link to comment Share on other sites More sharing options...
ph 7 Posted October 2, 2013 Share Posted October 2, 2013 I have recently had my hr remapped by Mark at abbey, all I have is drop in filters. The map has made a massive difference to drivability and general running of the car. It is much nicer throttle response (full throttle and light throttle) even in standard spec it gained around 12 bhp Sent from my iPhone using Tapatalk - now Free That is both what I wanted to hear and didn't want to hear!! Thank you Quote Link to comment Share on other sites More sharing options...
KyleR Posted October 2, 2013 Share Posted October 2, 2013 I have recently had my hr remapped by Mark at abbey, all I have is drop in filters. The map has made a massive difference to drivability and general running of the car. It is much nicer throttle response (full throttle and light throttle) even in standard spec it gained around 12 bhp Sent from my iPhone using Tapatalk - now Free That is both what I wanted to hear and didn't want to hear!! Thank you Which part is bad news? If your at about 185k on that engine, I think you'll be lucky to get about 235ish at the wheels, a remap may bring it up to about 250. Of course there are unicorns within the Zed world. Some have had basic breather mods such as an exhaust and a filter and had over 300 at the wheels which is remarkable, others which plenum spacers etc have only seen up to stock number or lower. Every car is different and maybe about 1% of Zed owners (350's) know exactly how the car has been driven because the rest of us bought second hand. The harder its driven the more power it loses, the longer its driven the more power it loses. I haven't got the UpRev yet, but it's certainly high on my list due to what i've heard from people on here. The Zed is the most powerful car i've owned and the best to drive, so I can only imagine how great it'll be after a new mapping Ref the fuel debate crap: I don't think anyone has mentioned anything negative about 97 ron, it's perfectly acceptable, and I have no idea why the Zed can't detect knock over 3500/5000 rpm, whichever it is, but apparently thats how it is I'm not taking the chance for the sake of £5 a month. Quote Link to comment Share on other sites More sharing options...
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