Crans

Where do you buy a new hose and valve?

After greatly annoying my neighbours for the last 2 hours(Gotta love a 3.5" exhaust with only a 4.5" cannon) i think i got a good compromise between idle and cruise. Towards the end my battery voltage dropped from around 13.8 to 13??? must need some better earthing as i have already replace the altinator(Hes me hoping i dont need to do that again) The voltage drop caused it to run alittle leaner(I think) around 15.2 and the odd stall pulling up after a short drive(Car always had this problem, could be no BOV??) On boost she sat at around 11.2 which is better than the reported RICH from the techedge 2J1 So i think im getting somewhere finally, now for the big test driving to work YAY!!

Pretty sure thats my old GTR I put the new engine in it with hks2510's and Nistune

Personally i think the 2540 is a little tiny bit too small for the 25, more suited the rb/sr20

Haha yep the best stuff for engine assembly.

BTW here is a pic of the fuel pump on the cradle

I have already purchased a turbo can I still get a discount of the ecu? Oops just re read the bottom part Might be interested in this ecu then

If the Wolf is really $100 i will take it PM me bank details or the correct price

Little update: Planned to spend the day tuning my car. Ended up spending most of the time help my mate on his 3L and installing a Deatschwerks 300LPH fuel pump. We had great sucess apart from my fuel gauge no longer working and i think the filter the fuel pump cam with dosn;t quite reach as far down as the stock setup, both can be fixed easily i guess. Can you but a new stock fuel pump filter setup? Started the car with the new pump and no tune adjustment. Started really well but again very rich. After the car warmed up a little and closed loop took over the fueling the car idle fu*king beautiful and sat with a 14.8 - 14.9 AFR. Starting the car I can see its still got way too much fuel in it but thats expected as I still need to adjust to injector settings. So i'm thinking all these rough idle and missing issues for the last 2 years have been a stuffed fuel pump the whole time. Changing the injectors over just made the symptoms a lot worse. The Deatschwerks pump was a tad over $200 including a nissan filling kit, purchased from Kudos motorsports web site. It is very quiet compaired to the noisy as hell r32GTR pump that was just removed. Now I can start seeing what the real quality of these injectors are fuel pump are.

Thats one busy looking exhaust side, how do they compair flow wise to the high mount?

Still the same issue idle is only perfect when running really rich. Status, that is some really good advise. I will get the latency and K value as good as I can get it then just start re tuning the rest of the map. When you talk about tuning the MAF curve as you referring to adjusting the MAF table so real world AFR's resemble the theoretical AFR on the fuel map? I guess that kinda like a 2D VE map isn't it? If only the dyno my mate and me are building was complete would make this a lot easier. One more question. What is the stock latency figure for the rb25? I have a nistuned rb20 ecu running my car and the latency in there is different to the latency of the stock rb25 ecu. Maybe this value was forgotten when I had the base image built by Nistune? This could be the reason my car has always run really rich and had a bad idle? Any way cheers for all the help again guys.

Still having issues with these injectors haven't driven my car since installing them. Here is an email I got from Deatschwerks regarding the problem. Jason, If the OE latency is displayed as 530us for the OE RB25 ECU, then think using 1300us for our injectors would be way off. The RB25 uses a OE side feed injector with almost the same coil properties as our 740’s. I would suggest trying something in the 700 rang and see if that helps then adjust from there. Our injector would not have anywhere close to more than twice the latency time as the OE injector Thanks -Mike Now as you can see from the flow report I posted @14v(My car runs 13.9-14v at idle) the latency is 1.3MS or 1300us for Nistuns sake. From what Mike at Deatschwerks is saying this is incorrect??? Does this mean the latency data provided is for both opening and closing time? Ho can I accurately measure latency time my self?

Use an external MAP sensor for reading engine load and then connect the internal map sensor to piping just after the turbo. Log boost values and anything over a few psi difference could be seen as a leak or dodgy cooler.

Stao how much for the conversion on my turbo?

Do you need the turbo sent to you to make the new housing? Would be a lot easier and less down time if you can do it would out the turbo? Pretty sure you've already installed an updated compressor wheel on mine

Wouldn't have sorry yeah mine seams to be alittle off the pace with lag. Pretty sure its not the turbo causing it tho, with the ss2 i wouldnt have noticed it as much and could make more power Stao it's in your best interest to answer me so Trozzle will be forced to upgrade aswell hahahaha

How much to convert my 43g3 to the ss2? Damn buying my turbo early, Would have had all these lag problems if i waited for the ss2.

Doubt the retarder was shagged expecially at that power. More than likely the load cell needed to be recalibrated

Nistune Chip in your ecu + a tune will cost around $500 New Front mount will be $400 - 500 GTR injectors around $200 - Set aside another $250 for cleaning, flow testing, new o rings and resistor pack Hiflow your turbo for $900 No need for a boost controller yet, just get a 1.2kg actuator with the hi flow(Boost controller ca be added later) That should do more than 300rwhp

Stoa how much to get this FNT done to a G3?

Finally got around to trying this again. Set injector latency to 1300 resized injectors to 756 saved changes and started the car. Car started and idled better than ever before(Even before the injector change) Didn't have time to let it fully warm up and fine tune the multiplier but so far very happy with the hiflow injectors. I was always told the hiflowed rb25 injectors were bad at cold start. These being Suburu hiflowed injectors seam absolutly fine. Oh and to answer the previous question. Why did I buy such large injectors. My power goal is 400hp for now but I do plan on building a 3L and run E85 so only buying injectors the one time

Here is the report from Deatchwerks Report says 756cc avg flow static and 645cc avg flow dynamic. Which figure do i use in my calculations? And yes I can see 1.3ms Latency @ 14V I will give this a go tomorrow

I new there maybe slight idle issues but nothing like this I havnt touched latency values was actually gonna ask about them I'll post the flow sheet

Basic setup of the car Rb25Det Deatchwerks 740cc Injectors Rb20 ECU running nistune and a VCT controller. Installed the injectors, all looks good nothing leaking. Run the Injector change function on nistune and the Injector multiplier is nearly halfed. Stupid thing starts to barly idle at a very lean 19AFR. Im adding nearly an extra 60% to the Multiplier to get it to idle at 14.9AFR the idle is just shit sounds liek a wrx on 3 cylinders. Up the multiplier some more and AFR head towards 12.5 and the idle is alot nicer. Now if the idle is set to what it should be the rest of the map becomes extremely rich, so rich in fact that the car splutters and stops moving. So now i have 0'ed out the fuel map in the cruise section and cruising along adjust the multiplier to sround what it was when the injector change function was run. Car seams to drive alot better comming on to boost it is still very rich but drivable(In the 11-12AFR range), no spluttering at all felt more like before the injector change. Now to get it to idle thoses fuel cells are now adjusted to theroetical 10AFR The way the nissan ecu's work theoretical AFR sound be pretty close to actual AFR expecially in the light cruize/idle range. Any ideas? Deatchwerks sell them as drop in replacements from what i can see of the injector report lag tims are correct. Is thi normal for larger injectors? Any one else with Deatchwerks experiance?

Good to see you got your GTR at last.