Mark@Abbey m/s

Hi ya , welcome to the forum .

The STD gauge are not good , even at 100deg C the gauge is still around in the middle of the min and max. You say that yout hink the guage is running a little lower than normal. If you say the car has got less econimical , I would say it maybe another problem , these 350,s run very little cold start fuel , so even of the car is running around 50deg C I cant see this making that much difference. Has it thrown any CEL,s up? it could be a O2 sensor starting to fail , this can cause the part throttle AFR to go rich. But got to agree with the boys on here if the coolant is low the heater will be blowing colder , doesnt the car get warmer of you leave it standing running?

I must admit I would have an auto car , so nice in traffic , spot on gear changes but also has the ability to be able to be manually changed. I must admit these cars are awesome. Mark

cheers for that dude, they do got a lot better after a little tweak.

Yes it does.

Bennets car didnt have UPREV he used a Utec for remapping. We do remap the throttle map , far better response than a STD car

you can take that off , UPREV works far better, you even get 100% throttle in each gear. Cookie have you got a Y pipe fitted as well?

Wonder if these will work , are they a direct copy of a std plenum?

could I have both of your full car spec,s will help me to build a couple of maps to be uploaded on the day

Only work Saturday mornings , but if you was with us for 8 I think I could get 2 cars done before 1 when we finish. Mark

The larger figure is the hub torque we then divide it by the effective final drive ratio to get a flywheel figure. Bradley , good to here your happy. enjoy. Car wasn,t to loud either with the de-cats fitted. 3FIDDYZ car with the headers fitted gives a little more midrange torque and a few more top end BHP , sounds a little different as well. Mark

Yeah we may need to dump the ECU , so maybe 2 visit,s. It,s a shame but Nissan do have the habit of using different images in there cars.

Lee, I didnt say I havent got the mapping, I need either your chassis number or ECU to make sure we have the correct RAM image. Auto cars have different RAM images to manual cars also cars with out cruise are different to cars with . Can you PM me your chassis number? Mark

Didnt they road test the car after carrying out the service?

2 cars in one day will be okay. sure it will be worth it...... the trip from Scotland.

The cat in the Y pipe is of a less restrictive construction like a set of HFC,s, but easier to remove and refit. Best of both worlds. Mark

Yes that what I thought , you can run a CAT a silencer and a decat pipe. Will run it on our car once it turns up. Mark

HFC do work but we have also found running without cats is good as long as you have an exhaust system that is pretty quiet.We can turn the CEL lights out if you remove the cats as well. I have been looking into using a Y pipe fitted with a removable CAT so we can remove the STD retrictive cats. But this wont happen before xmas, but I will keep you up to speed on development.

You lot of gone quiet re UPREV reflashes done a few more cars , still getting good results, not had anyone say thay aren,t pleased with the results. They go up on the 1st of January thou just due to the VAT increase from £345-00 inc vat to £352-50 inc vat. Mark

We think it threw a CEL on due to the battery maybe getting a little old and when the car was cranking the battery voltage went low enough to trip a BCM code due to low battery voltage , not seen this problem before , but there is a 1st time for everything. We reset the CEL light , sent the customer on his way and told him to change his battery and keep an eye on the problem. Mark

Jerry , has it cured the problem you had? Mark

Might not be the induction system , we have found the crank trigger sensor which is at the bottom of the gearbox, gets wet and upsets the crank trigger output.run the car for a while and it should sort itself out , will need the car turning off and restarting thou to reset the ECU. anymore questions fire away. Mark

Yes I can if needed. Not done a 370 yet , but will do soon..... Mark

Just been thinking that when we are asked to tune a JDM we need to check to see if we have the correct RAM image , we have asked for people to supply ECU number , but this needs either the ECU removed to check part number or take the ca rinto a Nissan dealer for them to look at the ECU via diagnostic port. But I have had a think , if you supply me your chassis number we can check via our JDM fast parts system what ECU number part number that is fitted to your car. hope this helps. Mark

Ian, I tried to ring you last week re talking to you about buying a 34 , left a message on your answerphone , give me a ring tomoz , I think we do know what we are talking about re GTR,s Mark