Sam Mcgoo Posted May 11, 2011 Share Posted May 11, 2011 Got an e-mail from Mark @ Abbey Uprev is finished and results are; 382.8 bhp @ Hubs ~ 418bhp @ flywheel 322 Ilbft @ 8.56 psi boost He hasn't road tested it yet but says it's a good safe/drivable map. Obviously how it drives is more important than the numbers. Picking it up Friday so will know more then. Quote Link to comment Share on other sites More sharing options...
Blacky Posted May 11, 2011 Share Posted May 11, 2011 You appear pleased with the results, which is great Road test should be fun Quote Link to comment Share on other sites More sharing options...
glrnet Posted May 11, 2011 Share Posted May 11, 2011 Have a very happy Friday Quote Link to comment Share on other sites More sharing options...
Sam Mcgoo Posted May 11, 2011 Author Share Posted May 11, 2011 You appear pleased with the results, which is great Yeah I'm happy with it. Torque is a little down on what I expected but power is a little higher so swings and roundabouts. Quote Link to comment Share on other sites More sharing options...
Pimm Posted May 11, 2011 Share Posted May 11, 2011 Sounds wicked, should be great on the road. Quote Link to comment Share on other sites More sharing options...
evilscorp Posted May 11, 2011 Share Posted May 11, 2011 sounds like you have my engine! have fun Quote Link to comment Share on other sites More sharing options...
Ian Posted May 11, 2011 Share Posted May 11, 2011 Good numbers Quote Link to comment Share on other sites More sharing options...
Sarnie Posted May 11, 2011 Share Posted May 11, 2011 Quote Link to comment Share on other sites More sharing options...
Stu350z Posted May 11, 2011 Share Posted May 11, 2011 Great Advert for S/C this! Quote Link to comment Share on other sites More sharing options...
ShortPaul Posted May 11, 2011 Share Posted May 11, 2011 Happy days That could get you in to a lot off trouble having that sort of power, respect to you take care Quote Link to comment Share on other sites More sharing options...
Wasso Posted May 11, 2011 Share Posted May 11, 2011 A nice bhp figures like you say although that torque appears a bit lean? With the NOS running 75 shot I'm achieving 300 at the hubs, but then NOS is good for torque and not so great for bhp. I'd swap for the sound of the SC that's for sure!! Quote Link to comment Share on other sites More sharing options...
Steady Zeddy Posted May 12, 2011 Share Posted May 12, 2011 Nice ATW bhp figure even if the torque looks a little low (for a Vortech SC). Would be interested to hear how it drives on the road now - a nicely sorted Vortech Zed is a massively fun and reliable car to drive - its a pity Nissan never brought out that SC model they developed. Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted May 12, 2011 Share Posted May 12, 2011 Nice ATW bhp figure even if the torque looks a little low (for a Vortech SC). Guys remember our dyno records Hub torque then divides that by the overall final drive ratio so giving a flywheel torque. So the torque figure doesnt take into consideration power/torque loss and I dont like dyno's that use a % power loss to estimated Flywheel/Torque. The car drives and goes real well. Mark Quote Link to comment Share on other sites More sharing options...
docwra Posted May 12, 2011 Share Posted May 12, 2011 Loving the shape of that power graph, but why are the AFR's all over the place like that? Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted May 12, 2011 Share Posted May 12, 2011 but why are the AFR's all over the place like that? do they are you thinking they should look like AFR from a dyno dynamic dyno plot? the dips are only around 0.1/0.2 AFR changes, our dyno auto plot axis's so makes the graph look a lot more un smooth. AFR's are spot on I feel, I have no worries with the map. The thin red line is how the cars was before now that is erractic. Quote Link to comment Share on other sites More sharing options...
docwra Posted May 12, 2011 Share Posted May 12, 2011 I dont know Superchargers or owt, but Id expect them to start around 13 and finish around 13 ........ those start at 14.5 and drop to 12, and they do move about a bit inbetween - from 4200 to 4700 theres a drop of nearly 1.5 Not suggesting its a problem or anything, just different from what Ive seen before and I wondered what might be causing it Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted May 12, 2011 Share Posted May 12, 2011 but Id expect them to start around 13 and finish around 13 ... If you run these STOCK motor sat 13 to 1 at HIGH speed your get detonation problems. Remember we are boosting a high compression N/A motor. running 13 to 1 at low RPM will cause the car to feel sluggish there is no real load on the motor at low RPM so no need to run around 13 to 1 AFR. I thought you meant erractic number during the run not a difference from the start to the end of the dyno pull. Not suggesting its a problem or anything, just different from what Ive seen before and I wondered what might be causing it every car is different and most dyno operators map a little different. I have mapped a few S/C 350Z's all with good results Quote Link to comment Share on other sites More sharing options...
docwra Posted May 12, 2011 Share Posted May 12, 2011 I thought you meant erractic number during the run not a difference from the start to the end of the dyno pull. Both actually. So you are saying that you deliberately move the stoich ratio about because of the VQ's characteristics? If it was an LS or an SR running a charger you'd map it differently then?? I know very little about mapping and only really have experience with CA/SR's but Ive always looked for a nice flat line around the 13 mark, I find this very interesting Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted May 12, 2011 Share Posted May 12, 2011 I know very little about mapping and only really have experience with CA/SR's but Ive always looked for a nice flat line around the 13 mark, I find this very interesting I disagree with this, motors doesn't need to be 13 to 1 AFR at low rpm/boost levels. Running a turbo car at 13 to 1 at high rpm isn't a good idea needs to be in the low 12's/high 11@s AFR to last espec if you run high top speeds. Even a N/A 350Z will be in the 11's AFR at high rpm. All car need to get richer going up the rpm. Yes if the car is different cams/compression/S/C_Turbo size it all makes a diffrence to the require AFR. If you play with the axis number on the AFR map I can make it look super smooth if I like. But how many times do you drive a car from 1500rpm to 6500rpm on full throttle? dyno plots are just for reference. Quote Link to comment Share on other sites More sharing options...
Wasso Posted May 12, 2011 Share Posted May 12, 2011 But how many times do you drive a car from 1500rpm to 6500rpm on full throttle? Erm..... like all the time - especially through tunnels!! I'm only kidding by the way...... Quote Link to comment Share on other sites More sharing options...
Chris`I Posted May 12, 2011 Share Posted May 12, 2011 Mines lucky to go north of 3k RPM atm with my commuting on the M4 Must admit I dont know an aweful lot about this kind of thing other than a car is meant to run richer as it revs and that turbo/SC tend to run richer too - I always heard it was to keep temps down to help keep det at bay. Oh and that 350z/370z run very rich as stock and for a reason know one quite knows Quote Link to comment Share on other sites More sharing options...
docwra Posted May 13, 2011 Share Posted May 13, 2011 I know very little about mapping and only really have experience with CA/SR's but Ive always looked for a nice flat line around the 13 mark, I find this very interesting I disagree with this, motors doesn't need to be 13 to 1 AFR at low rpm/boost levels. Running a turbo car at 13 to 1 at high rpm isn't a good idea needs to be in the low 12's/high 11@s AFR to last espec if you run high top speeds. Even a N/A 350Z will be in the 11's AFR at high rpm. All car need to get richer going up the rpm. Yes if the car is different cams/compression/S/C_Turbo size it all makes a diffrence to the require AFR. If you play with the axis number on the AFR map I can make it look super smooth if I like. But how many times do you drive a car from 1500rpm to 6500rpm on full throttle? dyno plots are just for reference. Hey, Im not arguing with you, you do it for a living, I dont. I can see that a turbo car needs to run richer at high revs, didnt realise it was necessary with NA though. I just find it interesting that you have deliberately mapped to change the AFR's a fair amount as the revs go up, Ive not see that much variance before Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted May 13, 2011 Share Posted May 13, 2011 didnt realise it was necessary with NA though It isnt dont know why Nissan map these cars like this, I think for warranty reasons. After a remap we run a lot leaner AFR at the top end. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 15, 2011 Share Posted May 15, 2011 The bold AFR trace looks pretty much as i would expect for a supercharged engine, pretty linear, just like the way the boost builds, don't know about the faint trace though, looks a little lumpy If it was turbocharged i would expect the trace to look rather different. Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted May 16, 2011 Share Posted May 16, 2011 don't know about the faint trace though, looks a little lumpy that was the car before when it had the split second ignition controller and the Vortech fuel pressure bump using a extra fuel pump. Quote Link to comment Share on other sites More sharing options...
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