SR20DET Build Questions

[Lobo240sx]

You might want to look into some cams too. Ive heard the stock cams start really holding you back around 350whp but i dont kno first hand for sure. A simple pair of drop in Tomei Poncams or HKS step ones should do the dirty for you.

Agree stock cams suck. You lose a lot of power @ about 4500 - 5000rpms. Go with some 264's or 272's.

[wance]

Will this work?

http://www.frsport.com/Brian-Crower-Cam ... 12802.html

[s13drifter88]

yes and that looks like a great kit but I would also recommend a set of gears. I think the tomei's and the hks step one's are to my knowledge the only ones that dont require an adjustable gear but again, i dont kno for a cold hard fact.

[PyR0NiAk]

BC doesn't have too great of a reputation with their cams. (The rest is used by several) He doesn't need adjustable gears for this setup, either. Tomei is probably your most reputable company for cams.

[wance]

Ok thanks

[wance]

Which type of cams should I get? I want to have a smooth idle I dont like the popping rumbling idle noise.

[wance]

I think I'm gonna go with 264 cams. But I might get a 2871r turbo instead. Will I still need the cams? Will they help with the spool up time?

[wance]

Will the 2871 be able to handle 20 psi it should I just stick the 2876?

[PyR0NiAk]

Codyace, hit 400whp (uncorrected) on 19psi on a 2871 .64AR. Intake, exhaust, and turbo housing were all extrude honed. Since it was an uncorrected run, I'd assume he's closer to the 350whp mark. I guess my point is, yes, it will do 20psi. Like I've said in so many threads, 20psi on one turbo is not the same as 20psi on another, so 20psi is NOT the magic number... :/

[wance]

Well which do you think is better for my plans?

[PyR0NiAk]

kyle's 2876 spooled to 20psi pretty fast, and it hit like a bag of bricks. I honestly think it's a VERY enjoyable turbo. Any 28 series turbo will be fun in a daily.

[s13drifter88]

the 2871 is an s15 t28 on steroids. i have a 2871, its a great performing turbo but if youre looking for a true 400whp its not your horse. thats going the be 3071 or 20g territory. the 2876 is a nice turbo tho, honestly wish i had gotten one instead of my 2871 seeing as how the miniscule price difference between the 2 yields a significant power increase

[PyR0NiAk]

There isn't a price difference. Enjukuracing.com and 240sxmotoring.com sell them all for the same price. At least, they did when I bought my GT3071R.

[s13drifter88]

See there, that makes the choice even easier then. When I bought mine i didnt go thru any of the above. The 2876 and 3071 were priced to me $120 different. I bought my 2871 cause I got a super good deal on it, like I should prob be arrested for theft of property I got so hooked up on price for that turbo.

Get the 3071, youre hearing a testament from me saying I wish thats what I had gotten and I own a 2871 52 trim .64ar. It performs great and spools awesome but I could live with 3 or 400rpms more lag for the jump in performance. If you dont like lag at all then none of the 3 above stated turbo's are for you, nor anything any larger. If you want that retarded almost supercharger-ish feel then the s15 t28 (or a 2860rs) is for you but dont expect to see more than about 300whp, 310 at best (330ish with the 2860).

[wance]

What should I do about a clutch?

[s13drifter88]

centerforce. idk if theyre available for the jdm sr but i kno the clutch for a Z31 turbo fits the sr20. when we did my friend thomas's sr swap we used the comp stage 2 that was in his 86 300zx turbo. spec and act are 2 great companies too. my preferences are centerforce dual friction and act xtreme 6 puck

[wance]

This will be my daily driver so isnt a 6 puck clutch going to be hard to work with?

[s13drifter88]

I have an ACT extreme 6 puck in my CA and I love it. Its a firm pedal but not retarded stiff and it could prob hold the moons orbit if NASA shot it into space. Really smooth too

[PyR0NiAk]

Look for a thread that says something about Maxima clutches. A lot of members swear by this shop and clutch. The price is unbeatable, as well. Enjuku also has pretty good prices on SPEC Clutches

[wance]

What kind did you get?

[PyR0NiAk]

Do you want response, or do you want a hard instance of power? If you want to be in the middle, go with a 2876. If you want just response, get the 2871. I recommend the 3071, though, myself. It spools at a low enough RPM that when racing it you should never have to worry about not being in boost, but it's also going to give you the most top end power. Just make sure you get some decent cams to back it up. 264s are plenty for a street car.

[wance]

Yeah I've decided to get the 3071 and 264 cams I just want a clutch that will hold on but not be too hard to work with. Will that maxima clutch hold 400whp?

[s13drifter88]

I cant vote on the Maxima clutch but I will continue to promote the Centerforce dual friction and the ACT Xtreme 6 puck (sprung of coarse)

[PyR0NiAk]

Yeah I've decided to get the 3071 and 264 cams I just want a clutch that will hold on but not be too hard to work with. Will that maxima clutch hold 400whp?

maxima-clutch-for-sr20det-t350878.html <- Click there

anyone else have experience with this clutch? does it come with throw out bearing and clutch alignment tool, etc?? i wanna know how well this clutch works. my clutch just took a poo on me =(

It worked fine for me with over 400whp on drag radials and I only had $130 bucks in the clutch. If you are making less than 300ft/lbs of tq I would get the 1200 lb pressure plate not the 1800 that I ran. A little easier on the left leg. This cluch is basically a rebuilt version of a competition stage 4+. Good street manners but capable of cutting 1.6 60's with a good driver and hold 400+ ft/lbs of tq. How can you go wrong???

[wance]

Oh yeah I read that I forgot about that post my bad. What about the pressure plate? I dont want a very hard pedal maybe a little more firm than stock.

[PyR0NiAk]

He said he was driving the 1800 on the street, and it handled the 400 without a problem. 400hp is a lot, man. It's going to be hard to find a soft clutch that'll actually stand up to a hard launch with that much power.

[wance]

True. I didn't think about that

[wance]

My car has the digital HUD and I was wondering if it will work with an sr20?

[s13drifter88]

I kno a gut that has it working with an r34 rb25 Neo so I don't kno why it couldn't work with an SR.

[PyR0NiAk]

I've seen a few swaps that run the hud. I've never researched it as I've never had a S13 with a HUD. I assume it just works off the gauge cluster. Considering everything else works with the SR, I don't see why the HUD wouldn't either.