Jump to content
SAU Community

M35 Engine Upgrade

scotty nm35
 Share

Recommended Posts

  • Replies 76
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

scotty nm35
scotty nm35

I think I would prefer to build the 2.5 because it is one of the best engines I have worked on, also it is what makes the M35 stand out on its own. Unfortunately there are no off the shelf parts for i

Posted Images

iamhe77 Grand Master

iamhe77

Posted
Posted (edited)
Where are those parts from? Like I said, I want to over engineer the block. It would be good if I could build something to easily handle 500wkw but run less boost (most of the time). This engine probably wont stay in this car forever. I would love to slide it into an s15 or something one day. :blink:

Into an S15? Would this + built engine (and drivetrain) make for a nice ride? I think so.

Edited by iamhe77
scotty nm35 Grand Master

scotty nm35

Posted
  • Author
Posted

I think I would prefer to build the 2.5 because it is one of the best engines I have worked on, also it is what makes the M35 stand out on its own. Unfortunately there are no off the shelf parts for it which is its only downfall. 3.5 is definitely the easier option but so was the 260rs.

  • Like 1
Bis-e Bee Mentor

Bis-e Bee

Posted
Posted

I vote 4 the TEPS build on the 25, more of a challenge to see what you can ring out of it. But I am a purest.

Besides if you build a strong 25 with plenty of go, but later decide to try a 35 (4 mo powa) i am sure cam will take the motor off ur hands.

danwatt Collaborator

danwatt

Posted
Posted

what si your goal?, the more cc's the better, If it was me I would build a VQ35 DETT with Motech standalone (8.5:1 & 2bar boost).

But if you put some quality pistons, rods and another turbo on the 25 it would be a pretty good combo.

scotty nm35 Grand Master

scotty nm35

Posted
  • Author
Posted
what si your goal?, the more cc's the better, If it was me I would build a VQ35 DETT with Motech standalone (8.5:1 & 2bar boost).

But if you put some quality pistons, rods and another turbo on the 25 it would be a pretty good combo.

Goal is a reliable high comp motor running E85 at 1 bar. 350awkw would be nice.

Any of these engines are more than capable once built, the 3.5 would have less lag but with a 3000 stall it doesn't really matter. If I can do it with the 2.5 it will be less of a headache with vicroads and the auto can still run fine. I cant afford a manual conversion just yet although with a block laying around it would be a good time to make a bellhousing.

I'm not sure yet if the 3.5 will run on the stagea ecu either, standalone may have to go in anyway.

pipster11 Grand Master

pipster11

Posted
Posted

you should read the thread of the guy who put a vq30dett into an r34

its a rare motor that comes turboed from nissan in the cedric's i think

3 litre displacement with oil squirters and all the things that they add to the turbo versions

its in the fabrication section i think, or in the one to show off you track/project cars

scotty nm35 Grand Master

scotty nm35

Posted
  • Author
Posted
you should read the thread of the guy who put a vq30dett into an r34

its a rare motor that comes turboed from nissan in the cedric's i think

3 litre displacement with oil squirters and all the things that they add to the turbo versions

its in the fabrication section i think, or in the one to show off you track/project cars

I'm sure every M35 owner in here has bat off over that build, still our VQ25det has all the same gear as well as variable cams etc, better design and newer.

scotty nm35 Grand Master

scotty nm35

Posted
  • Author
Posted
to run a VQ35 all you need is a PM35 Trans ecu and motor ecu......piggy back it with an E-Manage and your off!

Or you could just stick with doing up the current setup :)

I guess nobody had chipped that ecu either?

Im thinking the 25 will be the least headache, and possibly a stronger block. I will have to wait till the spare motor is here and strip it to check. Has anyone over here had one of these apart? I guess I am going to be the first?

Jetwreck Grand Master

Jetwreck

Posted
Posted
I guess nobody had chipped that ecu either?

Im thinking the 25 will be the least headache, and possibly a stronger block. I will have to wait till the spare motor is here and strip it to check. Has anyone over here had one of these apart? I guess I am going to be the first?

Just Jap had one in bits the last time I was up there......pity I was in a rush.......looks very similar to the VQ35DE

scotty nm35 Grand Master

scotty nm35

Posted
  • Author
Posted

I priced up some Argo rods today, they want $2100 plus for a set of custom 2.5/3L rods. There is a local race piston manufacturer that can custom any size or shape for $1700. Starting to look expensive.

I spoke to my tuner also. He suggested the 3.5 with eagle rods for the power level I want with earlier spool, off the shelf parts are a damn sight cheaper at around $1500 for both. He also said going high compression is a bit of a waste when you can just run higher boost for the ethanol. Might be in the market for a VQ3.5de.

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

    • GTSBoy
      New kid on the block

      By GTSBoy · Posted

      The wiring diagram for the R33 RB25 is freely available, and is essentially the same same as most other RBs (just with differences as to which pin # does which job). To get the ECU to power up, you just need to provide power to the ECCS relay, and have the other power feeds that come in from the top left of the wiring diagram (wrt the ECU) that give perma power to the fuel pump relay, the ECU itself, etc etc, all connected. When you put power on all these it will just come to life. It's pretty clear from the diagram what needs to happen. Just follow the lines from the 12V + supply stuff in the top left over towards the ECU. I've even posted snips of such diagrams (not for vanilla 25, I think for Neo and 26) to various threads here in the last few months, talking about what it takes to get the fuel pump and FPCM up and going. Search these up and they will help get you started on doing the same with the vanilla 25 diagram. Hell, for all I know, I've done the same with that one in years past and have forgotten.
    • Duncan
      New kid on the block

      By Duncan · Posted

      Yep...so unless someone posts up the answer you will need to probe from the ECU connector to the dash plug with a multi meter in continuity mode to trace the wires.  Note the ECU has multiple - and + (and across different key settings - Battery, IGN and Start) and most likely the power is fed from the connector(s) that is normally near the left hand headlight.
    • Songo
      New kid on the block

      By Songo · Posted

      Thanks Duncan, I am actually just trying to get the Rb turning and running with the RB25DET S2 original loom itself  I am just trying to get it going outside the body and not thinking about the S15 or trying to match anything to the S15 loom at all I am only trying to see if anyone has done this and what pin they found to be the ignition trigger and ECU+/- on the dash connector, that's about it. Thanks  
    • iain_ST44GA
      M35 VQ25DET starter motor

      By iain_ST44GA · Posted

      Hi Guys, Does anyone know any aftermarket part numbers for a starter motor to suit the VQ25DET? I can find lots of alternative part number for the VQ35DE, which I assume would fit, but there is a lot of conflicting information out there. Thanks..
    • Murray_Calavera
      R33 GTR running -9 with no tune

      By Murray_Calavera · Posted

      I don't understand how this hasn't boiled down to - Upgrade the turbo when you have everything required. ECU, injectors, fuel pump, turbo, etc. Do it all at once.  If you don't have everything required, just enjoy the car as it is and keep saving up your pennies. 
×
×
  • Create New...