Mark@Abbey m/s

Hi welcome to the forum; I would just add the figures quoted by the makers of the parts to get a estimated bhp gain. I have never seen any of these part give the figures quoted but they all help if used with the right mix of parts. 1, the main restriction in the exhaust is the cats. So you can remove this a few ways; fit de-cats , you gain top end but your lose low rpm torque Fit HFC,s you lose a little top end agaisnt de-cats but keep the low rpm torque Fit Motordyne ART pipes and a XYZ Y pipe with or without a race cats and have the best of both worlds. The cheaoest is the de-cat way the most expensive is the ART decat and XYZ 2, Dont bother with the throttle controller the UPrev does the same job. 3 , Plenum spacer will help with mid range torque but not top end BHP. 4, Re exhaust stock system works well , if you want to change the Y pipe get a Milltek but again it isnt cheap but I have seen a few cars with the "quiet" K2 I think Japspeed system on witha Japspeed Y pipe these work well as well but the fit quality isnt very good. 5, I feel astock airbox works better than any airfilter system as you dont get heat soak like most under bonnet air filter systems, just add RT Customz Velocity stack kit and a good panel filter. 6, Porting I wouldnt bother these cylinder heads flow big figures as stock , we have seen over 1000bhp on stock cylinder heads on a twin turbo DE motor on a engine dyno in the US. The onluy other mod I have seen a on a DE motor that helps is fit a Cosworth plenum this motor gave 300bhp flywheel on my dyno but without the expensive Cosworth plenum your see 295 flywheel bhp pretty easy. something like Plenum spacer Stock air box with RT biscuilt velocity stack ( 06 air box spec) we will have these in stock soon De-cats or HFC's Y pipe Japspeed exhaust K2 I think ( the quietist one) Uprev remap Will work real well. Mark

Ian, you got to the rear adjusters all okay then? You should stick a picture up where we placed the adjusters on your car if possible. Mark

Just divide the axle torque by 4.631 to get a flywheel torque figure. Mark

Kev you Motrrdyen ART de-cat pipes.

I think running a car CAT less we may get close to that figure but running any CATS I feel you wont , remember that is a gain of over 45+ bhp from a stock car , I am sure Nissan didnt do that bad a job on the tune, yes we tune the cars a little leaner we cant do much with the ignition as it close loops the ignition map agaisnt the knock senors/noise. Where did you guy buy your Akrapovic exhaust from? Mark

Ian, you got all the equipment so the steering wheel radio control's still work?

In a word no, this will show you have a loss via the piston rings , but the oil control rings work in a different way to the top 2 compression rings. You will always get a small loss as the piston rings have a small gap to allow for expansion so even as the rings are correctly placed you will get some gas pressure loss. The oil rings work by scrapping the oil from the bores. They are the lowest of the rings pack. Mark

we can look down the bores to inspect the cylinder bore condition do a cylinder leakage test , compression test. But you cant inspect the oil rings I am afraid. I thought it was the Rev Up motor that had oil uage issues but it seems the early car's (DE motors) are starting to show problems now

try a 20W60 oil that the thickest that is around. But i doubt that will stop the oil buring thou.

Doesnt matter what number a dyno gives , as long as you have your car run on the same dyno and keep the pulls to the same time and ramp rate you see the gains/losses. We run all the 350/370Z's with the same ramp rate so everyone can compare there figures. Re manufacturer's figures I wont take any notice until I have run them on our dyno.

Chris, as I said there is a swap over re ECU number on the 2010 cars. If it comes to it I will buy a ECU from the US with the correct number. Cheers Mark

I've a 2010 Anniversary auto if that's any use? Mike, PM your reg or chassis number and I will check the ECU number on Monday. Thanks Mark Mark

Chris, Nissan decided to do ECU Rom change just after your build date. I have 3 possible customers in Aussie that want e tunes but I don't want to cross load maps that far away from home. An 2011 car would be better to be honest but I will work out the date of the change next week. Thanks

Hi, I need a 2010/2011 370Z Auto to allow me to down load the ECU data so we can Uprev tune these cars. Any one want a cheap deal on a remap in return for the data from your ECU. It will not cause you any hassle with your warranty. thanks Mark

Why dont you talk to Tarmac re shipping?

SS, to much Chocolate last night..... Mark

thats sounds awesome getting married and then off to Canada. I am sure there are plenty of Z's around just make sure you have your winter tyres at the ready. And US truck proper sized , Look at the Titan Truck they are lovley. bet you cant wait.

Another good idea is to tweak the connectors on the throttle body , these seem to become loose and then make a bad connection twisting the male part will provide a better connection. then reset the ECU ( disconnecting the Battery will also do the same thing as an ECU reset)

double post sorry

never taken much notice to the shape , but I have been out and measured the pipework the HR has smaller inlet pipes that the DE/REV-up Y pipes; The limiting factor I feel on these cars are the CATS , a Y-pipe will give you more midrange grunt but top end will be the same as the CATS are the resticting issues. Stock exhaust are good for 400bhp so they wont be any issue on a Normal RPM limit N/A car.

Motordyne only list 1 Y pipe for a 3 350z models. The 313 bhp just has extra weights/double skimming for noise issues.

They are all the same the Y pipes on all the 350Z cars.

Nissan dont run a degree figure in the ignition map they run a millisecond figure before peak cylinder pressure, does the the same thing but not as simple to tune. The timing difference between high and low detonation on a DE motor is around 10 degree's but I would imagine to tune for unleaded we would run the car a little richer as well as retarding ignition timing say around 4/6 degree's Igntion timing.

It could cause damage , I have never had a car in with detonation damage, so maybe it is okay to run the cars on unleaded. If the car see's detonation it will switch to the high detonation Ignition map it wont switch back to the low detonation ignition map until the ignition switch has been cycled off. So the car onc eit is on the high det map will run around 6 degree's retard on the timing over the entire ignition map so it will not cause damage. I am developing a unleaded map for all the 350Z car but we are just a little short on dyno time at the moment. Mark

And to lose BHP.