The Sr20/Sr22vet thread

[mewantkouki]

Originally Posted by LuckyX2

Interesting, I'm using the factory cover on my P12 CAS and have no clearance issue.

S13 or S14 and what engine mounts are you using?

[LuckyX2]

S13. Circuit Sport poly mounts.

Didn't move it front or back any but it does sit a little lower than normal.

[mewantkouki]

S13 has a flat firewall, CAS clears it. S14 has a bulge where the sensor cap sits. RHD s14 and s15 firewalls are different than the LHD cars so there aren't any clearance issues. That's why the custom CAS cap is need or firewall modification has to be done to make it fit on a LHD car.

[hanzbrady]

Hey guys so as seeing that this is only a LHD S14 issue, is there actually a market for producing them? Preferably we'd like to sell the first batch as a group buy so if there's interest we'll look into it.

[mewantkouki]

I'll be the first to sign up and yes I think there is definitely a market for them with a little advertising (making sure people know you make them!). I'm also pretty sure that the clearance on RHD s14 and s15 firewall is pretty tight with Nismo motor mounts and could definitely benefit from a modded cap as well.

[jr_ss]

Originally Posted by mewantkouki

I'll be the first to sign up and yes I think there is definitely a market for them with a little advertising (making sure people know you make them!). I'm also pretty sure that the clearance on RHD s14 and s15 firewall is pretty tight with Nismo motor mounts and could definitely benefit from a modded cap as well.

I'll bring my car up for R&D if you need one. You'll have to supply a P12 CAS as I'm currently running your Hall effect sensor.

[LuckyX2]

Originally Posted by mewantkouki

S13 has a flat firewall, CAS clears it. S14 has a bulge where the sensor cap sits. RHD s14 and s15 firewalls are different than the LHD cars so there aren't any clearance issues. That's why the custom CAS cap is need or firewall modification has to be done to make it fit on a LHD car.

Did not know that, thanks.

[mewantkouki]

Mazworx, make this please. I want to use an OEM cas on my build.

[speedingmofa]

Guys, i don't understand how the P12 billet cap will make any difference. I've measured my P12 cas and cap, and there's only 1 or 2mm play between the pickup and the inside of the cap. Sure some parts (around the disc) can be a bit more compact, but the pickup is the part that is going to stick out most so you'll end up with that part just as tall as OEM

@hanzbrady If you're opening a group buy, I'm definitely in for a piece at $40

[mewantkouki]

I don't think the actual pickup is what contacts the firewall. I think the upper part of the cover is what the problem is.

[Rb26kouki]

Originally Posted by speedingmofa

guys, i don't understand how the p12 billet cap will make any difference. I've measured my p12 cas and cap, and there's only 1 or 2mm play between the pickup and the inside of the cap. Sure some parts (around the disc) can be a bit more compact, but the pickup is the part that is going to stick out most so you'll end up with that part just as tall as oem

@hanzbrady if you're opening a group buy, i'm definitely in for a piece at $40

+1 ...........

[hanzbrady]

Hey guys, so we're open to the idea, and we can hit a price point between $40-60 assuming we get a good size group buy. If anyone has a P12 CAS they could bring by or ship out for RnD we could get started on it.

[RalliartRsX]

If I ship you one, would I get price break??

[hanzbrady]

Originally Posted by RalliartRsX

If I ship you one, would I get price break??

Possibly

[Juan@Fontananissan]

Hanzbrady,

either you or your boss man shoot me an email, i can help you guys out.

[jr_ss]

Originally Posted by hanzbrady

Possibly

Do you need a car with Nismo Mounts?

[s13silvia123]

I'm not running pistons with valve reliefs at the moment, will I need to use P11 cams or stay with the stock P12 cams on a P12 head.

[jr_ss]

Originally Posted by s13silvia123

I'm not running pistons with valve reliefs at the moment, will I need to use P11 cams or stay with the stock P12 cams on a P12 head.

P11 cams only. You'll need piston with reliefs to go any larger.

[600supersport]

non-N1 sr16ve cams would clear with a bit more jam than the P11


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[RalliartRsX]

Originally Posted by s13silvia123

I'm not running pistons with valve reliefs at the moment, will I need to use P11 cams or stay with the stock P12 cams on a P12 head.

Agreed with what Jr-ss and 600 said. However, are those DE or VE pistons and at what compression?? Compression (be it bowl or raised crown) will affect clearance. Stock DE 8.5:1 pistons you can get away with up to P12 cams (I have heard N1 cams, but I have not personally confirmed it so I will leave it at that).

Either way, if you have it apart and the engine is on your stand, just spend the extra 1 hour or so to clay it up. It you skimmed both the head and block (which is required), you may also think about degreeing the cams.

[s13silvia123]

Greddy DE 87mm pistons but I don't recall the compression ratio. I believe it was 9:0:1 correct me it I'm wrong. It's been almost 15 years since I had this motor. But I'm looking to scoop up a short built block for this build.

[jr_ss]

Originally Posted by s13silvia123

Greddy DE 87mm pistons but I don't recall the compression ratio. I believe it was 9:0:1 correct me it I'm wrong. It's been almost 15 years since I had this motor. But I'm looking to scoop up a short built block for this build.

Then anything is available. I'd personally run JE DET at 8.5:1 on a pump gas motor. That'll give you roughly 9.3:1 static with a factory 1.1mm HG. You could drop down to a .9mm and gain a couple tenths in compression. Once you near the 10:1 mark, you really need some type of alternate fuel or octane booster (i.e. Meth injection).

[brndck]

Originally Posted by s13silvia123

I'm not running pistons with valve reliefs at the moment, will I need to use P11 cams or stay with the stock P12 cams on a P12 head.

just fyi. when I bought my engine, it had sr20 redtop block with cp sr20det pistons, eagle rods, p11 head, p11 cams, and I'm not sure if the cams were not degreed efficiently, but you could see marks where the valves had just barely kissed the pistons

needless to say I ditched them for cp VE pistons with valve relief notches.

I'm not saying you CAN'T run p11 cams with non-relief pistons, I'm just saying +1 for clay it.

[RZRSHARP_240SX]

I am running cp stroker pistons without valve reliefs and n1 cams. To get the clearance I used a thicker head gasket a cometic 1.5mm. Based on the calculations my compression ratio is at 8.7:1. And everything has been clayed and clears.

[Garvid]

Originally Posted by jr_ss

Looks good Dave, thanks for your help on NRR.

Latest and greatest.

what brand those blue covers on your engine bay bolted to both strut towers?

[RalliartRsX]

So is anyone using the VE 4CW crank in thier turbo build??

[rbs14kouki]

Originally Posted by RalliartRsX

So is anyone using the VE 4CW crank in thier turbo build??

My tuner with the 1/4 mile world record for sr20 powered irs s-chassi is running a 4 counter weight crank in is sr21vet .

[rbs14kouki]

Originally Posted by Garvid

what brand those blue covers on your engine bay bolted to both strut towers?

Nagisa ou nagasi if im not mistaking

[jr_ss]

Originally Posted by Garvid

what brand those blue covers on your engine bay bolted to both strut towers?

They are Nagisa Shakitto plates.

[s13silvia123]

What about those who are running P12 cams without valve reliefs. are you guys clearing when properly clayed.