Mark@Abbey m/s

Track work it has been known to see 140+ temps , the cars do seem to run a little warm if they run on the track , but most cars do once, you start working them pretty hard ( trackwork you rev the car so much more than driving on the road)

It would be good to hear from people that have been doing some high speed motorway work in Germany thou.

I would advise if you going to track the car an oil cooler is a definite item to add.

throttle body spacer-----dont know to be honest, would need to try it.

I would like to try one of these carbon manifolds on a stock car to get my head around what it does, Very easy to get lost with a tune without understanding what everything is doing.

Anyone got any pictures of the plenums inside ?

The stainless steel kinetix plenum on a N/A 350z gives a little mid range torque but losses top end bhp agaisnt a STD plenum.

I have a true dual system on my JDM 350z which I feel seems to hold the BHP back top end against cars run with a Ypipe and std or after market system.

Have a look here 2nd post

viewtopic.php?f=114&t=27916

Anymore questions fire away

Mark

cheers

Just thought I would start another thread to make it easy for people to find.

I have a few maps for the UK 276BHP cars already, And with the time I have been playing with the 350 I know what cars need and dont need if they are slightly different in relation to tweaking the map.

Within the £345-00 inc vat Reflash cost , I do now include an hour or so to tweak the map if I feel we can get a little more from your car. I think this is a good deal not really any movement in the price as the dyno costs money and the UPREV system and license,s aren,t cheap.

I think 3 cars is the maximum I can do in 1 day and if you want before and after plots after fitting major items like exhaust that will limit the car run in 1 day.

But I can overlay anyones car with anyones elses dyno plots are we run the cars all under the same times on the dyno. So that is a dyno day in itselfs.

But I have a 276bhp UK car on the way and from what I have seen so far I have some idea,s up my sleeves on the tuning path of these 350z,s.

Yes we can fit any items supplied by us or you the customers as we arent just a dyno shop we are a 1 stop Z workshop. see our signature below.

Mark

we find this is normally caused by a out of tolerance reading from the crank signal sensor. Sometimes even a bit if clutch dust will cause this problem.

The car reads the engine crank position from around the flywheel with a inductive senor which fits in the gearbox , there are a numbe rof cut outs that tell the ECU at what postion the engine is to allow the car to inject the right amount of fuel and fire the mixture at the right time also tells the ecu what revs the car is doing. any fluctuation in this signal coul dmake the rev counter jump around. but it doesnt seem to cause any perfomance loss.

hope the helps.

Mark

I have a few maps for the UK 276BHP cars already, And with the time I have been playing with the 350 I know what cars need and dont need if they are slightly different in relation to tweaking the map.

Within the £345-00 inc vat Reflash cost , I do now include an hour or so to tweak the map if I feel we can get a little more from your car. I think this is a good deal not really any movement in the price as the dyno costs money and the UPREV system and license,s are cheap.

I think 3 cars is the maximum I can do in 1 day and if you want before and after plots after fitting major items like exhaust that will limit the car run in 1 day.

But I can overlay anyones car with anyones elses dyno plots are we run the cars all under the same times on the dyno. So that is a dyno day in itselfs.

But I have a 276bhp UK car on the way and from what I have seen so far I have some idea,s up my sleeves on the tuning path of these 350z,s.

Yes we can fit any items supplied by us or you the customers as we arent just a dyno shop we are a 1 stop Z workshop. see our signature below.

Mark

Just thought I would help you 370 owners with some info I have been told by my friends in the US.

Seems Nissan has not fitted any kind of oil cooler on the 370 cars , I have been told that if you use the car on the track or are a very spirited driver on the road the cars suffer from extremely high oil temperture even to a point that the engine have suffered bearin failure. Seems a lot of US owners are fitting oil cooler kits.

We can also tune your cars with the UpRev system ( we may need a car to upload the RAM from before we can tune thou , need a ECU number to confirm if we do have a correct RAM image) , unlike the 350 your cars get full throttle in ever gear but they do limit the lower gear performance by limiting the valve lift.

Any questions re your car feel free to ask away.

Mark

Just thought I would update this thread a little , as a lot of you will know we run John Bradshaws Drag cars for him , which 1 is a 350z car running a slightly modified VQ35DE motor.

http://www.bramsracing.com/

Within this partnership with JB we work with a well known US tuner of the VQ engine Z,s from US.

http://www.theexperience.com

These are the people that built JB 350z and are helping us out with the development of the VQ motor to hopefully make the 350 be the 1st Japanese powered car into the 6,s outside the US.

Performance Motorsport are based in Long Island , they know Adam from Z1auto very well.

So togther with Performance Motorsport , Abbey will be keeping the 350Z owners at the forefront of development on your cars.

all sounds good the tuning on your Revup motored 350z GT4 Zed , I presume you have a MREV lower collector fitted?

I know Peter well @ Thor we supplied him his Dynapack a few years ago. I have not used a Utec yet but they must work well , only thing I can get my head aroud is how it copes with the learning side of the STD ECU ( this isnt to upset this thread ) just like some answers to allow my brain to understand the system.

The STD ecu reads the fuelling (in AFR) via the pre cat Lambda,s so even if you tweak the fuelling ( I presume on UTEC by offsetting the Air flow meter voltage) you will adjust the fuelling until the STD tries to retune to get the correct fuelling ( STD ecu reads in AFR )

When you tuned the car how many runs do you do the allow the car to sort out the self learn , we find that you need 5/6 runs once you have reprogrammed the ECU for the car to self learn sufficently to give a proper dyno run , the 1st 3/4 runs will be down on BHP and Torque as the car slowly tunes itself towards the figures you have in the ECU.

Good thread , looks like we will start on an extensive tuning program with a RevUp motor soon , may even run some E85 or race fuel.

Roll on 2010 should be a good year.

Can I put my 2 pences worth into this thread;

tonysoprano is my father my partner in Abbey Motorsport , we are not just a tuning shop thou , we can do everything on a 350 Z not just tune them, We are the only non Nissan dealer in the UK to have a Nissan Consult 2 with the supporting cards for security set up and we have a Nissan trained technician that has done his time on 350z,s.

We have had a few 350,s with non start issues and can say Alan,s problem sounds different to what we have seen before. Mostly the cars we have seen that wont start just need the NATS code resetting or by resetting the ECU.

Just a few pointers;

1, key needs to be coded to the NATS box. So you should be able to swap and ECU between cars

without recoding keys/nats box

2, the ECU has 4 12volt feeds;

Pin 109 is 12 volt feed from ignition switch. (non permanent)

Pin 119/120 are feed from the ECM relay. Pin 120 goes to the ECU and Pin 119 feeds the main

engine sensors (Air flow meter Crank/cam sensors) (non permanent)

Pin No 121 is permanent 12 volt feed.

I would say if the dealer cant comunicate with the ECU either Pin 109 or Pin121 arent getting 12v correctly.

Also the fans running at half speed say there is a problem that will not allow the car to run. this is Nissans way of saying there is a major problem.

If you cant communicate with the ECU a reflash wont work either as we program through the ODB2 connection.

Shame Andy is so far away from us as I am sure we could help you out, but Andy feel free to give us a ring to discuss anything or we can answer your questions on here to help people out in the future.

hope this helps thou.

Mark

I only tune cars with the UPREVon this trip , but we can do 350GT,s , Murano,s I think , Altima,s and the Big US 4wd Pick Up. ( not done any thing else other than the 350z,s and the 350GT,s yet thou)

I will need ECU,s number of any cars to check I have the correct RAM image thou.

Have you got a tracker fitted?

Mark

yeah I Understood what you mean , I was talkng about not lookng at the top end figures , more about the drivability of the car , smoothing out the throttle response. The 100% throttle helps to.....

I like that spoiler, looks good on a red car as well

Dan,

how you getting on fiddling with your controller as to speak......

Mark

Well looks like we are now able to get around the JDM speed limiter now , had my car on the dyno yesterday all good now.

I dont have base map,s for the JDM cars yet, as my car has a few parts bolted to it , but we can live map the JDM cars so it wont take long to map your car same price as before £345-00 inc vat.

But I thing we may need to keep an eye out is that we may not have all the RAM images for the imports still , we have a few but if you interested in a reflash can you send me the ECU part number 1st so we can see if we have the correct RAM image.

We may need to dump your ecu if we dont. So I am afraid you have to wait a few weeks before we can remap if we dont have the RAM image.

Mark

Morning all , I see people are starting to understand what we get up to with the tuning of the Z,s

with the Uprev system

I think a trip to Abbey might be on the cards for me next year, not looking for increase in BHP, just want the 100% throttle and driveability

We are now up to speed with the JDM cars , we can remove the 180 KMH limiter when we remap the cars.

I dont have any base maps yet fo rthe JDM cars as my car has a few parts bolted to it , but it wont take long to map the JDM cars as we can live map these.

Same price as before £345-00 inc vat

Mark

My thoughts;

1, you cant compare cars run on different dyno,s (been spoke about before) even running a car in a different gear will make a difference, also running the car over a different run time will make a difference as well.

All the 350Z dyno runs we do are in the same gear and over the same time.

2, US boys use SAE compensation agaisnt DIN what we use this gives a different figure.

3, please get the top end figure out of your head AREA under the graph is what counts, also the Z drivabilty is enhanced when tuned you cant see this on a dyno sheet car needs to be driven. I have not had a bad word from anyone that we have tuned so far.

4, The mods we are doing on the cars are never going to find big BHP , the car from Nissan is pretty spot on , cars now days are well developed from the factory so unless it is F/I and we can wind some more boost into the car we are only going to make small increases.

5, the cars need 4 or 5 runs to settle down with regards self learn after any ECU tweaks.

6, any mods we find on a stand alone will have to work against the self learn on the STD ecu.

7, normally if you have a CEL on it will put the car ca ronto the high DET ingnition map so knocking the BHP back.

8, fitting cams in my eyes are only going to lose mid range torque , the limiting factory on the DE engines (276 bhp) to allow you to rev the motor is the valve spring retainers , these over 6800 rpm tend to pull over the valve collets and make a huge mess

I feel if you want more BHP from a NA car , you either need to increase CC or if staying with Stock CC , you will need to increase compression ratio to enable the dynamic compression ratio to stay the same after fitting cams , mods to the valve train maybe some rods and pistons, then I say we maybe able to find 330/340 bhp flywheel , but you can get this by blowing the motor S/Cing is the way to go in my eyes thou.

any more questions fire away.

Mark

still need to get my JDM car back on the dyno to sort out the speed limiter problem , will endeavour to get it sorted this week Anlid.

Ian,

when I am at work tomorrow , I,ll give you the data that we run Mark,s car, i.e start rpm ramp rate and finish rpm ,the we can directly compare the run between the 2 cars.

But I do have a ace plan ready for Marks car

I would prefer to just add 35bhp to the hub BHP figure than add a % Mark.

But even if we quote it at 305 bhp it is a good gain from a STD car as in the 1st graph ( the GREEN plot is a totally stock motor not even had the Uprev reflash)

Yes it funny Nissan after developing the extra valve control on the Revup motor have actuualy made a engine that has less torque than the early DE motor but they do rev on far better.

Such a shame a cam change is such a huge job , would be good to fit some cams in a Revup motor to the same spec as a early DE motor and then play with the cams maps.

Lots to still do, had a play with a DE 276bhp car yesterday with a few more mods on the figures where very very good , should be posted up on here very soon.

Same REVUP 06 car fitted with plenum spacer and Popcharger

BLUE dyno plot std motor fitted with Nismo exhaust and Y pipe STD air box

RED dyno plot std motor fitted with Nismo exhaust and Y pipe plenum spacer popcharger air filter

No gains over the car run without the above mods, it is known the 06 STD air filter set up is pretty spot on and it seems the plenum spacer only works if you use a Mrev lower collector.

I have a lower collector on order so I should have some more information very soon.