COnfirmation on parts for RB25DETNEO rebuild

Discuss the RB20, RB25 and RB26 series engines.
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TimTurboZ
Posts: 663
Joined: Mon Oct 06, 2008 8:59 pm
Car: 95 S14 w/RBXX... 65' Mustang GT
Location: Sacramento, CA

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I'm about to begin building an RB25DET NEO. It can be quite difficult to find a direct answer on forums/online for info on the NEO6 motor as you know so I wanted to confirm/check on a few parts.

As far as hardware I'd use: ARP Main and Head Studs that are all the same on RB20-26 motors, and for the rod studs I'd use the RB25/26 Specific studs because the NEO's use the same connecting rods as RB26's. I have that correct???

For rod bearings if I choose ACL I would need the RB26 bearings *again same rods*, but for the main bearings (crank) would I go with the 25 or 26? (Raw Brokerage's site lists Cosworth main bearings as 25/26 (same part) but ACL lists RB20/25/30 (separate part #'s) but no RB26 tho I;m sure I can find them elsewhere)

Now I know NEO pistons are different then normal 25's but I haven't read any info about what rings I would go with, any recommended parts/interchangeable RB rings that I could use would be appreciated. I will only be honing my cylinder walls and using whatever the stock size is.

Thanks in advance for any help you can give me! I've been researching alot and have been trying to wait before I started asking questions lol.

Tim

I'll post back with a few more questions later I'm sure. I email Raw Brokerage but no reply as of yet


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TimTurboZ
Posts: 663
Joined: Mon Oct 06, 2008 8:59 pm
Car: 95 S14 w/RBXX... 65' Mustang GT
Location: Sacramento, CA

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For rod bearings if I choose ACL I would need the RB26 bearings *again same rods*, but for the main bearings (crank) would I go with the 25 or 26? (Raw Brokerage's site lists Cosworth main bearings as 25/26 (same part) but ACL lists RB20/25/30 (separate part #'s) but no RB26 tho I;m sure I can find them elsewhere)

ACL does have RB26 main bearings *my bad* still need to know if I'd go with 25 or 26 bearings tho

mixeds14
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Joined: Tue Feb 26, 2008 12:44 pm
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Location: nc

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u may want to get in touch with carlH, i believe he help rebuild a neo with one of hes friends from what i have read, also sickness14 i believe, i might be confused him with someone else that has a similar name, he has a build post on here somewhere........

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TimTurboZ
Posts: 663
Joined: Mon Oct 06, 2008 8:59 pm
Car: 95 S14 w/RBXX... 65' Mustang GT
Location: Sacramento, CA

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Yeah I've seen a couple rb25det neo builds but just listed in ppl's sig's. I PM'd 1 guy no reply :( Raw Brokerage hasn't responded either. I'll try carlH tho I know he's the guru

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Coolwhip
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Joined: Fri Feb 06, 2004 7:29 am
Car: RB26 Raw Brokerage War Machine
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Sorry that you didn't get a response.

If you can shoot me an email direct and I'll see what I can do.

[email protected]

neonbomb
Posts: 487
Joined: Sun Apr 22, 2007 11:26 am

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Go on SAU. All of this information is there.

MarkS14 (forget his real name) is good with Neo knowledge. As is Carl.

sickness14 bought Bumblebeetunas Neo, so he may have learned alot from that big mess of a motor.


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