My rb25det headache.

Discuss the RB20, RB25 and RB26 series engines.
synergy
Posts: 144
Joined: Sun Jun 07, 2009 3:59 am
Car: s14 rb25 s1

Post

I bought a RB25det saturday and drove it 300 miles home.It has a high idle that is very tempermental one stop its 2500 next 1100 then back to 1700. It also has alot of power loss anywhere below 6500 it just doesnt pull like it is supposed to. today when i started it it idled at 1,000 and felt like it wanted to die real bad it also had a slight slight knock you could barely hear it but it was felt.

The car sat for about a year so i figure most of the rubber and plastic and seals are most likely bad and maybe a MAF.

Since i cant register the car im doing a swap to a s13 but first i want to make sure the motor is fine.

If i go from s14 to 13 what extra parts will i need? i know the s13 and 14 are basicly the same but any little things i will need to change?

any info would be cool.


User avatar
Fibre guy
Posts: 712
Joined: Sun Mar 08, 2009 12:57 pm
Car: 91' s13 RB25DET, 95' s14 bone stock, 87' Wrangler 4.6L stroker

Post

Ok mister s14 rb27 s1. Lot of things can cause and bad idle did you do any basic trouble shooting?Also, please be more specific about your time line.As for the s14 to s13 fitment, use the search button.

synergy
Posts: 144
Joined: Sun Jun 07, 2009 3:59 am
Car: s14 rb25 s1

Post

yes rb27.... its bored out .2 liters and didnt feel like typing i have an rb25det bored out to a 2.7 liter. And i have checked alot of things that could be wrong knock sensor MAF boost leak exhaust leak and to no avail. The thing that scares me is it has a rattle in gear below 2,000 rpms i just hope its not somthing major.


Return to “RB20DET / RB25DET / RB26DETT Forum”