Jump to content
SAU Community

Need More Power From Vq25Dd

Howaitonaito
 Share

Recommended Posts

  • Replies 57
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

zei20l Grand Master

zei20l

Posted
Posted

And because it's my car and my money and I can do want I damn well want to it

im not attacking you or anything, just bewildered that youd do that to a car youre gonna sell in a few years an upgrade when your licence will allow!

anyway, you said its your money! :)

iamhe77 Grand Master

iamhe77

Posted
Posted

It wasn't the fact direct injection and turbo hadnt been done but the vq25dd issues.

Yeah, we'll I'm glad I'm not doing it. Problems off the top of my head would be the dd injectors, the fact it's either 11:1 or 11.3:1 compression, plus the Strength of the connecting rods, and engine management.

I guess it's one of those things, if you throw enough money at it, it would probably work, but it's really not a cost effective project. Far better to ditch it when on full licence and get something easier.

Rods are the same as in the VQ25det, so no problems with strength :)

  • 2 weeks later...
PN-Mad Grand Master

PN-Mad

Posted
Posted (edited)

Bolt-on turbo skyline NV35 powerless

skyline as NV35 say VQ25DD with 2500cc, is it was very feeble 5AT direct injection type engine

We like to run fairly or bolt-on turbo

Maybe a little too large turbines.

Wrap most of the main control CPU, using an e-managed enough fuel, 足Shimashita with additional injectors

Unlike the twin-turbo and NA of the normal twin, in a heterogeneous CPU nameparameter is very difficult.

How much to go to the normal power injector? While we explore setting

Blow off valve e Managed turbine TRUST T618Z

APEX Power Intake catalytic muffler

Original AT cooler intercooler oil cooler

BLITZ D-SBCid Ⅲ

0.83 → 0.68kg/cm2 boost

221.3ps 30.3kgm Power Check Chart picture

Phoenix Power Jp

There you go. Turbo VQ25DD. Expect 220hp.

Sorry about the Japlish.

Edit- read- the Turbos too big, The stock ECU controls everything except we bunged an emanage in there, it was f-ing hard work compared to the twin turbo/VQ35des we do every other day. We don't have any injectors to add more fuel, so we just hope these flow enough so your motor doesn't blow up- we bunged in an extra one cause it works with rotarys... and it only made 220hp. Lets go back to the R35 GTR now...

Edited by PN-Mad
Commsman Veteran

Commsman

Posted
Posted

LOL, love your translation Alex. Makes much more sense & is probably exactly what they were thinking, even if they didn't write it up in those words.

  • 2 weeks later...
  • 4 weeks later...
GRK35L Rising Star

GRK35L

Posted
Posted

No one has touched on probably the cheapest and probably best initial way to make ur car go faster. Put the thing on a diet. A lot of weight could be saved by striping the thing however depends how far you go with this. I recently replaced the front drivers seat and the thing is f@#$ing heavy. My point is depending what features you require to keep the ride comfortable and driveable a lot of weight could be shed. That being said I would take the advice of nearly every other post on this thread and forget about the extra kw and focus on looks and style while still on ps as in a year you will be able to drive whatever you want. The thought though of having a VQ25DET in the shed waiting to be dropped in would be something different and certainly be a step up once installed thumbsup.gif

my two cents

scotty nm35 Grand Master

scotty nm35

Posted
Posted

It would be a great option but the awd sump would probably have to be swapped for a 3.5de one. Possibly a better option to get a cheap VQ30det, easier to get running too as there is no evct.

Howaitonaito Mentor

Howaitonaito

Posted
  • Author
Posted

In response to the weight thing my model is the basic basic, has no power/heated/cooled seats. Other than the spare space saver there is not much I can take out.

And I response to the stag half front cut, didn't the VQ25DET come in RWD? I thought it did but I maybe wrong. Because I was planning on getting either a VZ-R N1 N15 pulsar or a AXIS Autech stag and keeping th skyline as a daily

T4NK Experienced

T4NK

Posted
Posted (edited)

Dont waste ur money just get a GTR or something when ur off ur P's if u want power its not worth screwing around with N/A cars for power unless u have 15k to throw at them to do it properly and by that i mean rebuild the entire block pistons con rods ect, turbo kits ECU, injec, brake upgrades suspension, transmission/clutch/gearbox upgrades. If you do it half assed u will blow the engine out in around 80,000km from what i have seen on G35 driver, they guys that drop SC and Turbo kits in all blow engines if they dont do internals and with the power u get from doing the internals you will need to do the listed supporting mods or u are going to not be able to stop/damage the car.

I would just keep it as stock as possable then when ur off ur Ps get a 34 GT-T and go nuts with that. If i fit into one thats what i would have done.

Edited by T4NK
zei20l Grand Master

zei20l

Posted
Posted
And I response to the stag half front cut, didn't the VQ25DET come in RWD? I thought it did but I maybe wrong. Because I was planning on getting either a VZ-R N1 N15 pulsar or a AXIS Autech stag and keeping th skyline as a daily

nope, all VQ25DETs are AWD and automatic

Howaitonaito Mentor

Howaitonaito

Posted
  • Author
Posted

Thank you for clarifying that.

The VZ-R N1 is the most powerful 1.6lt in history with 147kw from the factory and only 500 made and they weigh nothing so they are quick little things. 34's are to common. There isnt many VZ-R's around let alone the N1's

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Duncan
      Who has a Infiniti Q60, Q50 (V37)?

      By Duncan · Posted

      The ATTESSA is functionally identical to R34; there were a bunch of JDM models that continued ATTESSA including Fuga/Q70, Skyline/Q50, Cima etc as an option. All with Auto only and I think mostly for snow regions. AFAIK there were no AWD VR30DDTT sold in Australia - it is on my to do list to check regs for racing a LHD car in Targa/ATR/AASA/CAMS events because if I can get the auto to work it would be interesting to run a 4wd car The Ecuteck TCM tuning is the same model as their ECU tuning, they already have it for R35 and Dose's favourite, BMW. You buy "points" to allow your computer to be tuned, buy either a bluetooth (phone app) or bluetooth+USB+Key (phone and PC) dongle, and pay for a tune that will be locked to your tuner ( ). You can also access the tuning software yourself but 1. it is mega expensive and 2. these computers have a billion parameters that intersect, so how could you ever spend enough time on it to get a decent result.
    • MBS206
      Who has a Infiniti Q60, Q50 (V37)?

      By MBS206 · Posted

      Or, is it a case of what it is like owning an R series Skyline? NFI what the previous owner has done or fiddled with... Ha ha ha After reading through this thread, I went on a bit of a research about the Q50/Q60. Now I'm quite intrigued by them! Is the AWD in them more like a WRX where it's always AWD, or is it more like the ATTESSA in the GTRs? By the sound of this TCU tuning, this sounds like a case of someone has made some real software for it, and you just need the right piece of hardware, and then you license that specific vehicle/TCU. Or is this a case of the software will be really expensive so only a few tuners have it, and you still have to pay a license per vehicle?
    • CF.Panda
      R34 25GT Engine Light 21

      By CF.Panda · Posted

      By popular demand.. it was a coil. Got my hands on 1 new OEM coil, replaced with the one that made the less noise difference when I unplugged it while the car was running and started the car up. No stutter and the engine light was gone. I guess I’ll buy the other 5 they have lol
    • joshuaho96
      R34 25GT Engine Light 21

      By joshuaho96 · Posted

      No, code 21 is very straightforward. It can only be the things described in that diagnostic flow. In fact it has no way of knowing that the spark plug resistance is out of spec.
    • brillo
      Leak from Tokico BM50 Brake Master Cylinder

      By brillo · Posted

      Hi, SteveL Thank you very much for your reply, you seem to be the only person on the net who has come up with a definitive answer for which I am grateful. The "Leak" was more by way of wet bubbles when the pedal was depressed hard by a buddy while trying to gey a decent pedal when bleeding the system having fitted the rebuilt BM50 back in the car, which now makes perfect sense. A bit of a shame having just rebuilt my BM50, I did not touch the proportioning valve side of things, the BM50 was leaking from the primary piston seal and fluid was running down the the Brake booster hence the need to rebuild, I had never noticed any fluid leaking from that hole previously it only started when I refitted it to the car. The brake lines in the photo are "Kunifer" which is a Copper/Nickel alloy brake pipe, but are only the ones I use to bench bleed Master cylinders, they are perfectly legal to use on vehicles here in the UK, however the lines on the car are PVF coated steel. Thanks again for clearing this up for me, a purchase of a new BMC appears to be on the cards, I have been looking at various options in case my BM50 was not repairable and have looked at the HFM BM57 which I understand is manufactured in Australia.  
×
×
  • Create New...