Sr20det FAQ

[dizzariot]

Originally Posted by Jibbberish

1.) Smaller diameter wheel/tire combo?
2.) Check them grounds. Similar thing happened in my MR2 randomly so I sanded/cleaned up the grounds and it never happened again.

16" with 205/45. They came with 16" from the factory so there's either something else wrong or I'm grossly underestimating the wheel/tire combo.

I figured it might be something with my grounds but I'm just putting it off until I have more time to dedicate to it.

[LoSt180]

Originally Posted by dizzariot

16" with 205/45. They came with 16" from the factory so there's either something else wrong or I'm grossly underestimating the wheel/tire combo.

I figured it might be something with my grounds but I'm just putting it off until I have more time to dedicate to it.

You need to swap in an S13 speed sensor. They read differently. The S14 SR came with a 3.69 final drive, most swaps in the U.S. keep the 4.x FD, so the RPMs will be high at highway speeds. Do you have a gps app that can verify how fast you're going at 3,000 rpm in 5th?

[dizzariot]

Originally Posted by LoSt180

You need to swap in an S13 speed sensor. They read differently. The S14 SR came with a 3.69 final drive, most swaps in the U.S. keep the 4.x FD, so the RPMs will be high at highway speeds. Do you have a gps app that can verify how fast you're going at 3,000 rpm in 5th?

I clocked 52MPH at 3000 RPM.

Thanks for the responses, guys. I appreciate you helping me narrow things down.

[ultimateirving]

I been chasing a similar starting issue for a while. Completely random, and starter just clicks like it's trying to turn. This weekend I found a ground that had loads of corrosion between it and the chassis. It's right under the fuse box on the passenger side. Black wire with yellow stripe.

Originally Posted by dizzariot

Anyone else in here have an S14 SR in their S13? I'm taking a long period of leave in January to sort out some things. In the meantime, any suggestions with the problems I'm having would help to point me in the right direction. I've got two issues:

1.) When I'm cruising on the highway to work I'm close to 4000RPM @ ~64MPH. My mileage is off on my cluster but I know that my car has the correct speed sensor. The previous owner told me that he didn't mess with the final drive but I'm left wondering why my RPM is so high when I'm barely keeping up with the flow of traffic.

2.) Since I've owned the car (it's been over a year now) I've experienced issues with starting the car twice. There are no common denominators and I'm pretty stumped. I'll go somewhere to run errands, come back, and the car just won't turn over. It gets power and everything comes on but the starter won't even notice I'm trying to start the fucking thing. It happened to me again today before the gym. I made a stop nearby, was in and out in 15min, and when I came back out I got nothing. I was near the gym so I locked up and walked over. Worked out for a little over an hour and came back. Everything started up like normal.

I suppose I've been putting this shit off because I know I'm leaving for Japan soon and the car is just gonna sit. I realized I'd like to straighten it out before the car goes into deep-sleep.

[Jibbberish]

Hmmm. Maybe the previous previous owner messed with the final drive lol.

[Evilstang1987]

I've got a 1997 with a 98 sr20det in it. Now here is my problem. Ran it hard one night last summer is then after that it would spit and pop whenever it gets to about 5 psi of boost. Thought I had a boost leak. Checked all piping and had no leaks. Changed out my spark plugs and it did fine until I tried to boost it had again. Pulled real hard then started spitting and popping again and will not boost past 5 psi. Order some phase 2 coil packs and changed my spark plugs again.(gapped at .25) Just went down the road and it will pull real hard as long as i roll into it and not try to hit it hard off the bat. Anybody have any suggestions?

[zenkicpe]

Originally Posted by Evilstang1987

I've got a 1997 with a 98 sr20det in it. Now here is my problem. Ran it hard one night last summer is then after that it would spit and pop whenever it gets to about 5 psi of boost. Thought I had a boost leak. Checked all piping and had no leaks. Changed out my spark plugs and it did fine until I tried to boost it had again. Pulled real hard then started spitting and popping again and will not boost past 5 psi. Order some phase 2 coil packs and changed my spark plugs again.(gapped at .25) Just went down the road and it will pull real hard as long as i roll into it and not try to hit it hard off the bat. Anybody have any suggestions?

Check voltage across TPS, sounds like its out of adjustment. Also look closely around the throttle body for leaks as well as injector orings. Good luck.

[Mofuhcka]

Having an issue with my S13 SR. Starter will not engage the flywheel fully. Has the dust plate in between trans and block, and seems to be getting full power to starter and extending fine. Any ideas?? Starter is also brand new

[lewisfk]

good vacuum line diagram or routing for sr20det

[trkoo]

Does anyone maybe knows if will fit gt2560r turbo on my stock s14 sr20det blacktop engine, the original turbo is blown and i need a new one, i got a good offer for gt2560r and i dont know if i need bigger injectors im rebuilding engine and i dont want to spend money on injectors he said i just need to change wastegate spring for 0.5 and everything will be okay. what should i do?

[zenkicpe]

Originally Posted by trkoo

Does anyone maybe knows if will fit gt2560r turbo on my stock s14 sr20det blacktop engine, the original turbo is blown and i need a new one, i got a good offer for gt2560r and i dont know if i need bigger injectors im rebuilding engine and i dont want to spend money on injectors he said i just need to change wastegate spring for 0.5 and everything will be okay. what should i do?

Yes that is the stock s15 turbo, i run the same unit on my s14 sr20det.

[LoSt180]

An S14 KA oxygen sensor is an exact replacement for the S14 SR sensor. Length of wire is the same. Just some geewiz info since some of the older posts say to use a Z32 sensor, which would also work, but the wires are a lot longer.

KA on top
SR on bottom

[Splintercellsz]

Drove fine until yesterday. Idle surges, and bogs/power loss when driving. Also dislikes cold starting.

I've changed plugs, cleaned MAF and throttle body. Any other ideas?

Sent from my SAMSUNG-SM-G870A using Tapatalk

[zenkicpe]

Originally Posted by Splintercellsz

Drove fine until yesterday. Idle surges, and bogs/power loss when driving. Also dislikes cold starting.

I've changed plugs, cleaned MAF and throttle body. Any other ideas?

Sent from my SAMSUNG-SM-G870A using Tapatalk

are you running BOV to atmosphere?

[Tyler_240]

I picked an unfinished swap a few months back, it already had a freddy IM but came with a spare oem s13 intake. The car doesn't make enough power to need an aftermarket intake.

I have everything to re-install the oem one except for the support bracket. Is it necessary to pick one up? I don't care either way, its not about the money, I just dont want to run into issues later on.

What do you think?

[Frank_Jaeger]

Originally Posted by Tyler_240

I picked an unfinished swap a few months back, it already had a freddy IM but came with a spare oem s13 intake. The car doesn't make enough power to need an aftermarket intake.

I have everything to re-install the oem one except for the support bracket. Is it necessary to pick one up? I don't care either way, its not about the money, I just dont want to run into issues later on.

What do you think?

I would reinstall it without. It's not like it's an exhaust manifold.

The only thing I like about the Greddy style manifolds is they're easy to work around / under.

[Tyler_240]

Originally Posted by Frank_Jaeger

I would reinstall it without. It's not like it's an exhaust manifold.

The only thing I like about the Greddy style manifolds is they're easy to work around / under.

Thanks Frank.

One more question, anyone know of a Nissan Part # for the Brake Booster Hose for S13 Chassis to Redtop Intake Manifold?

Thank in advance,

[J.torres]

https://youtu.be/eORpJ_xxc_0 this is link to how my sr20det sounds, I just recently purchased it and dropped it in, did no work to it besides basic matinence. Can someone give me an idea on what this sound is and how simple it could be to fix?

[zombiewolf513]

Originally Posted by J.torres

https://youtu.be/eORpJ_xxc_0 this is link to how my sr20det sounds, I just recently purchased it and dropped it in, did no work to it besides basic matinence. Can someone give me an idea on what this sound is and how simple it could be to fix?

That's a rod knock my friend

[J.torres]

Sounds like its coming from the top end of the block, possible it could be lifters in head?

[zombiewolf513]

Dude, if you think you know what it is why are you asking?

You already know you'll need to take it apart to find out and fix it. It's a knock. Lifters don't sound like that.

Yes it's the head, yes it's the block, yes it's the intake, yes it's the differential.
Now stop looking to be spoon fed and get to work

[jedi03]

fpr maybe? also could be leaky injector or fuel pump not able to hold pressure...I sometimes have to let mine prime for a bit before starting...

[Splintercellsz]

It turns out to have been the IACV.
I've looked all over abs couldn't find a solid answer. If I unplug the IACV, the car runs prefect. Am I able to leave it unplugged until I can purchase another IACV, or is running without it hooked up detrimental to the engine?

Sent from my SAMSUNG-SM-G870A using Tapatalk

[jedi03]

Iacv helps idle...may run rich during startup and be hard to idle...don't think will be that bad I have been looking to eliminate mine for better reliability with less sensors...

[jaysgottaredtop]

I'm posting this here for reference because I've seen a variety of S13 SR20 O2 options mentioned across the internet, but very little hard evidence.

Old stock redtop SR20DET O2 sensor vs. new '86 300ZX turbo O2 sensor (Denso 2343120, ordered from here)





^ Plugs only look different because the locking tab on my stock plug had broken off long ago.



There's no wire sleeve and the wires are shorter by a few inches, but otherwise the 300ZX sensor seems to be identical. Plugs into my SR20 harness just fine.

Also, I'm sure you could cross-reference that part number to find out what other models it came on. Likely came on the N/A ZX, and probably came on other stuff like Sentras too.

[jedi03]

I currently have a 96 maxima o2...just has longer pigtail

[TheRealSy90]

Longer pigtail is good is you're swapping and using the oem engine harness.

[jaysgottaredtop]

I'm using the OEM harness. Despite it being a bit shorter than [what I assume to be] the stock O2 pigtail, the Z31 turbo O2 pigtail still reaches just fine.

[Millhouse]

Hello! So I'm confused, not so much if its possible but as to what it will take, what extra things need to be done to swap an sr20det and 5speed into a 1995 s14 automatic. ive been looking into it and for the most part its one or the other in topic, I'm just curious to see of its easier to just do the sr 5 speed swap all at once instead of going in and taking the tranny apart if that tranny is going to go away anyways when i do the swap. If i removed the ac lines underneath and installed the clutch, gear boot and area for the shifter, would i need to do anything else, should i just do it all in 1 go? What else is needed that could complicate it?

[russaroll]

where do i attach the IVAC hose? before or after the BOV?