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~73 Turbo L28 to N/A RB25 240z Project~


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#401 winstonusmc

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Posted 18 February 2017 - 02:25 PM

I am glad to see you finally put the check engine light to use. I like your location for the light, I might have to copy it. I am pretty sure I labeled the neutral safety switch on the harness, which might have something to do with it, or the clutch safety switch. Either way, you could just check codes periodically.

'72 240z w/ RB25DE ITB MS3/MS3X

http://forums.hybrid...40z-rb25de-itb/


#402 ~KnuckleDuster~

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Posted 21 February 2017 - 09:48 AM

I might have the wife get me this for my B-Day..Nissan consult adapter and some Data scan software. For around $150 it seems like a great tool to have. Then eventually I can go Nistune if I go with the ITB route so I can actually program the ECU to my liking.

 


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#403 Ereschkigal

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Posted 21 February 2017 - 01:03 PM

I always read in the s13 community to avoid Nistune in favor of Ecu Master or Haltech or something like that. Just this morning a friend told me about Realdash support for Ecu Master.

 

edit: I just asked him again why to avoid Nistune,he said because it's relatively expensive and has less functions than a stand alone ecu.

He may be biased because he just bought an ECU Mastere ecu for his JZ swap  :P


Edited by Ereschkigal, 22 February 2017 - 12:01 AM.


#404 ~KnuckleDuster~

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Posted 21 February 2017 - 07:49 PM

Thanks I appreciate the input, I'll have to look into those guys as well. Glad to know there's a few options out there for obd1.

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#405 winstonusmc

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Posted 23 February 2017 - 05:58 PM

Especially if you go ITB. Any MAF computer will not know how to handle open air ITB. Unless you are planning to run the plenum, that would just be silly, JK. I though about running the plenum in the beginning when I had problems with the MS3 not revving, but those days are long gone. Haltech elite 750 is a good option, and isn't too expensive. I know a guy that can hook you up to wire that...

'72 240z w/ RB25DE ITB MS3/MS3X

http://forums.hybrid...40z-rb25de-itb/


#406 ~KnuckleDuster~

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Posted 01 March 2017 - 11:09 AM

Especially if you go ITB. Any MAF computer will not know how to handle open air ITB. Unless you are planning to run the plenum, that would just be silly, JK. I though about running the plenum in the beginning when I had problems with the MS3 not revving, but those days are long gone. Haltech elite 750 is a good option, and isn't too expensive. I know a guy that can hook you up to wire that...

If and when, I do plan on running the plenum since I've got everything for it already and I can focus on getting that running right before I go all out crazy haha. The company that makes the manifold adapter plate says you won't be able to run VCT with it but there in the process of making an adapter to retain VCT. If I can keep VCT on the car I'll likely go for it. How did you get around this?


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#407 winstonusmc

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Posted 01 March 2017 - 04:46 PM

I have known people that run the spacer and they had to delete the VCT. Mine never had the VCT. I use the RB25DE block from the R32, it wasn't VCT. I did this because it didn't have the oil passage that runs the system and uses the same head gasket as the RB26. This allowed me to bolt the RB26 head and ITBs to it. So no solenoid for me, or spacer.

'72 240z w/ RB25DE ITB MS3/MS3X

http://forums.hybrid...40z-rb25de-itb/


#408 ~KnuckleDuster~

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Posted 24 March 2017 - 07:48 PM

The car had another episode of what seemed to be running on 5 cylinders again. Now that I know what that feels like I suspected another coil pack had kicked the bucket. Check engine light was on and sure enough another coil pack died 20 miles or so after the last one. Figured the 11 year old coils were done for so ordered a whole set of OEM packs. I was considering Splitfires but heard stories of them going out quickly. For an N/A motor I'm sure the Nissan units are just fine.

 

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Figured this was a good opportunity to finally get rid of the old nasty valve covers. I was anxious to see the condition of the inside of the heads and to my surprise there was zero burnt or or sludge anywhere. It looked brand new inside.

 

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Looks good with out all that non sense on top..

 

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All back together. I painted the Neo Sraight 6 lettering silver to match the other lettering.

 

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Test drove her with the new coil packs and shes feeling better than ever. Sounding nice and healthy too!


1973 240z _Click Here_     GoKart -   Click Here

        

 

 


#409 boosted300

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Posted 25 March 2017 - 05:13 AM

Looking good!

#410 docaam

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Posted 18 April 2017 - 10:42 PM

Sorry must have missed it where you got these headers from I am looking if there is anything off the shelf for my RB25/30 project



#411 ~KnuckleDuster~

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Posted 30 April 2017 - 07:17 PM

Sorry must have missed it where you got these headers from I am looking if there is anything off the shelf for my RB25/30 project

The previous page shows some issues I had to deal with. The ebay seller DEA Performance sells them. They're on the Australian ebay site.


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#412 ~KnuckleDuster~

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Posted 13 May 2017 - 12:08 PM

Been a while since I've taken some pictures..

 

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Edited by ~KnuckleDuster~, 14 May 2017 - 12:54 PM.

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#413 ~KnuckleDuster~

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Posted 19 June 2017 - 02:13 PM

Picked up a Kamaeri rear strut bar in an attempt to stiffen up this old chassis. Worked well rear end feels much tighter. I attempted the Kameari front bar which was rumored to clear the top mount intake manifold on the RB but it didn't. Ill have to have one made custom or wait and see if I go the ITB route.

 

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I was on the hunt for a more functional shift knob. The old knob while looking somewhat period correct was from a Datsun 720 pickup truck and was too small in the hand for fast shifting and the hard plastic with a sweaty palm combo was just asking for mis-shifts under pressure. After much searching about I settled on the OEM knob from the last generation 240sx (S15). Perfect fit in the hand and doesn't look aftermarket. I does have an S on it for Silvia but that could be for S30?!? The thread pitch of this knob is unlike most Nissans. I had to find a M10x1.25 to M12x1.25 adapter.

 

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In the process of putting together a new video with the new header music but it's slow going..


Edited by ~KnuckleDuster~, 4 weeks ago.

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#414 Jay

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Posted 20 June 2017 - 03:28 AM

Car is lovely, something I'd aspire to own one day!


Looking to buy a clean RB/JZ/VQ 240z.


#415 ~KnuckleDuster~

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Posted 4 weeks ago

Shortly after putting in the new coil pack I started having another performance issue. Car seemed down on power and started running lean. Then finally progressed into hard starting where a throttle blip was necessary to keep her running. So I figured one of the last untouched items on the car should be swapped out, the fuel pump. I bought a Walbro 255 to replace the unknown branded pump that had a date of 2006 stamped on it. When I removed the old one I pulled out a chunk of medal and saw other rusty looking debris inside. I bought a mesh screened fuel filter to go in between the tank and the pump to catch whatever nasty crap still lurks inside my tank. you can open it up and clean it out which is nice.

 

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Does anyone know what this fuel pump bracket is from?

 

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Edited by ~KnuckleDuster~, 4 weeks ago.

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#416 ~KnuckleDuster~

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Posted 3 weeks ago

Here's a video so you can hear the different exhaust note from the header. I planned on making this video twice as long with different content but baby life has me bogged down so I figured I would just post what I had done for now.

 


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#417 ~KnuckleDuster~

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Posted 8 hours ago

Got the OBD1 consult plug wired in and ordered a PLMS USB Adapter with  the Nissan Data Scan program. I installed everything on a spare laptop which will just be for the Z now which will have FSM's for the 240z and R34 on it. Extremely happy with how this turned out. It's a great tool to have especially if I attempt the ITB route.

 

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1973 240z _Click Here_     GoKart -   Click Here

        

 

 





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