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Discussion starter · #141 ·
edk said:
I'd not heard of shimming the fuel rail before. I just looked it up via Google - http://www.duramaxforum.com/forum/06-07 ... m-kit.html

Does that have any bearing on the YD engine? What does it do for it?
It's all on page 3 and 4 of this very thread my friend....It's actually the pressure release valve on the end of the fuelrail that gets shimmed internally, to allow higher fuel pressure.
 
Thanks :) Sorry for being lazy but the thread title didnt lend itself to telling me the info was here ;) and a search for 'fuel rail shim' didnt bring up many post results. I'll have a read now :)
 
Yup thanks I figured that's what it does. Useful mod and I wonder if that's the cause of what I was saying. I might speak to Paul about that at RST.

I actually didnt know all this info was here because of the title of the thread. I thought it was just about the turbo on ebay, but actually general tuning is being discussed a lot! I've read to page 10 but I must go to bed now.

Very very interesting read for me and I hadnt realised Lee had gone so far with the tuning now, and that Tony was on the scene too. I've been out of the Navara tuning loop it seems! :D
 
edk said:
Done-it-all said:
Fuel rail shim
Mapping up
Turbo back pipe 2.5"min for hybrid.
For some reason autos don't need a 3" pipe.
Most will get 260hp easy. A few more bits and bobs will get upto 280hp.

260/280hp will max out standard injectors, differance is how old and tired the injectors are to the spray and injectors maxing out. Each truck will be slightly different on power.
I'd not heard of shimming the fuel rail before. I just looked it up via Google - http://www.duramaxforum.com/forum/06-07 ... m-kit.html

Does that have any bearing on the YD engine? What does it do for it?

I have found that (after my remap) on WOT from a high gear there's a moment sometimes when I loose power. Lifting off and planting my foot back on the throttle brings back all the power. Perhaps this spike then drop in pressure is what's happening? (or it could be torque limiters but it never happens when I'm WOT through the gears, only from low RPM in a higher gear for a longer duration).
if you place a thicker shim then you extend the limit of pressure before limp mode occurs thus MORE PRESSURE...
personally i don't think that the shim is your problem, because if you had that problem then your car will go straight to limp mode and not only a spike of loss...i have heard though that the sping of the fuel rail (theres a spring before the shim) loses his power after time especially if you use for a long time common rail boxes which upping the pressure :wink:
 
Edk I told you over a year ago about the shim mod mate.

To put a end to the name of this topic GT2056v to GT2060v this turbo can not be made to a hybrid at all.

Best match hybrid you can do is from a Audi 3.OL tdi Gt22 then hybrid that. It's still a vnt and standard injectors handle this ok. 260/280hp each motor tends to act different. More mods more power from this turbo 330hp can be made for sure.
 
As you can see guys Bluenavara has already explained this to me but thanks anyway for the explanations.

Sorry Lee I obviously had forgotten. A lot happens in a year and it's not a mod I needed to do. From the sounds of what tgiannak says I still don't. It just intrigued me.
 
edk said:
As you can see guys Bluenavara has already explained this to me but thanks anyway for the explanations.

Sorry Lee I obviously had forgotten. A lot happens in a year and it's not a mod I needed to do. From the sounds of what tgiannak says I still don't. It just intrigued me.
if you are running a remap or dte pdi alone or combo you don't want the mod...if you are running a common rail box on its own then you need the mod to prevent limp mode and unlock more power...(and smoke :mrgreen: )
 
with injector module like PDI.....and mathanol injection...how many hp i having now ??
 
Discussion starter · #152 ·
edk said:
As you can see guys Bluenavara has already explained this to me but thanks anyway for the explanations.

Sorry Lee I obviously had forgotten. A lot happens in a year and it's not a mod I needed to do. From the sounds of what tgiannak says I still don't. It just intrigued me.
Ed,

I read through your 26page intercooler thread over on tdocuk. :salute: Great writeups in general and compliments on that cold air feed! :thumbleft: By the way, my take on intercoolers is that you'd be hardpressed to find any notable performance difference (good or bad) between same size IC's with halfway sensible endtank shapes (cast or welded), be they bar&plate, tube&fin, deltafin whatchamacallit, fleebay, namebrand, proudly made in China, whatever....... :scratch:
 
jackhon said:
with injector module like PDI.....and mathanol injection...how many hp i having now ??
maybe around 40% over std?it also depends on the PDI, if you use custom map like mine, maybe u can get that figure. I haven't install any WMI but plan to get one, but even with just custom PDI my car goes very fast :partycheer:, my concern is the nav brake which is very ****** eventhough I already upgraded my pad with ebc 7000
 
tuju77 said:
jackhon said:
with injector module like PDI.....and mathanol injection...how many hp i having now ??
maybe around 40% over std?it also depends on the PDI, if you use custom map like mine, maybe u can get that figure.
You're not getting 40% more power with the stock turbo and stock boost. You'll hit huge amounts of black smoke (followed with potential engine damage) with about 25% more fuel and no more air.
 
Bluenavara said:
edk said:
As you can see guys Bluenavara has already explained this to me but thanks anyway for the explanations.

Sorry Lee I obviously had forgotten. A lot happens in a year and it's not a mod I needed to do. From the sounds of what tgiannak says I still don't. It just intrigued me.
Ed,

I read through your 26page intercooler thread over on tdocuk. :salute: Great writeups in general and compliments on that cold air feed! :thumbleft: By the way, my take on intercoolers is that you'd be hardpressed to find any notable performance difference (good or bad) between same size IC's with halfway sensible endtank shapes (cast or welded), be they bar&plate, tube&fin, deltafin whatchamacallit, fleebay, namebrand, proudly made in China, whatever....... :scratch:
Thanks :) But my what? Where do I have a 26 page anything on one subject? :lol: Also how does what you quote relate to your reply? Regarding the intercooler itself it was bought on the advice from my tuner and seeing as he knows what he's doing and has much more experience with these things I was happy to take his advice.

Edit: That 26 page thread is my build thread for my car mate. The ' - intercooler' added on the end of the title is just letting people know the latest update. The full title is 'Nissan Almera 2.2 DCi'. See the first post of that thread for my spec list and photos and if you wish to follow my progress in the past read on from there :).
 
hi guys, i'm signing on - again. it seems my previous posts went with the crash... so, newbie here!

may i ask if there's a way to increase boost from the stock turbo without a remap?
 
cydepx44 said:
hi guys, i'm signing on - again. it seems my previous posts went with the crash... so, newbie here!

may i ask if there's a way to increase boost from the stock turbo without a remap?
hmm maybe a s/steel or aluminium boost pipe and a fuel chip..more fuel awakes the turbo.....but there are some boxes that upping the pressure of turbo manually..boost boxes..but i haven't tried them..i'm running an alloy boost pipe and dte chips and i'm going up to 21psi boost pressure....18psi its stock :wink:
 
tgiannak said:
hmm maybe a s/steel or aluminium boost pipe and a fuel chip..more fuel awakes the turbo.....but there are some boxes that upping the pressure of turbo manually..boost boxes..but i haven't tried them..i'm running an alloy boost pipe and dte chips and i'm going up to 21psi boost pressure....18psi its stock :wink:
oh sorry, forgot to mention i'm running on vtec fuel rail chip and also see my peak boost at 21 psi. but, i'd also like to improve my afr a bit from 16:1. it sure would be nice to get a remap but where i'm from that's a remote possibility
 
cydepx44 said:
tgiannak said:
hmm maybe a s/steel or aluminium boost pipe and a fuel chip..more fuel awakes the turbo.....but there are some boxes that upping the pressure of turbo manually..boost boxes..but i haven't tried them..i'm running an alloy boost pipe and dte chips and i'm going up to 21psi boost pressure....18psi its stock :wink:
oh sorry, forgot to mention i'm running on vtec fuel rail chip and also see my peak boost at 21 psi. but, i'd also like to improve my afr a bit from 16:1. it sure would be nice to get a remap but where i'm from that's a remote possibility
i don't know about remaps i haven't tried them! but i know that the stock turbo can reach 22psi max and if you go there your turbo won't last much!!!
 
i've actually wrecked a turbo already. D40 @ 60,000 km. it got me thinking it might have been too high an egt that killed it. anyway that was before the methanol. i know of one person who's installed an 8 ohm resistor to the map sensor, willing to try it but a little more research won't hurt i think.
 
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