help : building 400hp sr20det for daily driver

[Komatsu X]

Hey i am building a 400hp daily driver sr20det.. i dont want to have any internal problems for about 2 or 3 years...please let me know everything i need to do to the block and the head to have a 400hp sr20 that i can drive to work everyday? also i need to know where i sould set my rev limit?
and dose anyone know how much hp the stock sr20det rods can hold?


thanks everyone..

im starting the build next week

[trsilvias13]

since you are in so cali... bring it to a shop and let them build it for you.. suggestions like phase2motortrend or jspec or gdimension. They built cars before and they are known. I think searching would be the best for you .

Stock block has held up to 500+ hp here, but how long it will last? I don't konw. Also stock rods suppose to be good up to 400ish.. rev limit depends how you build your block. 400hp (not 400rwhp)is very attainable for daily driver. I suggest follow someone else's build and copy. GT2871r is the way I would do it.

[Dousan_PG]

my sr and doriftopgs wre done by garage works up in palmdale

both are basically same
pistons (mine's 9:1, his was 8:.1)
stock rods
256/264
top mounted turbos t3/t4
enthalpy tune
3" exhaust
um...mine has valve springs and reatiners, redline at 8k
and um...

driving it everyday is basically stupid
that much power every day...shit. i run at least 100 octane, 91 to the track, 110 at the track
so daily driveability ..not for me. not in california. not with the CHP, local police and the theives

f that!

[Komatsu X]

since you are in so cali... bring it to a shop and let them build it for you.. suggestions like phase2motortrend or jspec or gdimension. They built cars before and they are known. I think searching would be the best for you .

Stock block has held up to 500+ hp here, but how long it will last? I don't konw. Also stock rods suppose to be good up to 400ish.. rev limit depends how you build your block. 400hp (not 400rwhp)is very attainable for daily driver. I suggest follow someone else's build and copy. GT2871r is the way I would do it.

i have a fully built rb engine making over 400hp.. daily driver never had a problem with it... so ill be building the engine at my shop.. i have a gt2835 already..

so i just need to know what i need to upgrade in my sr engine to hold that kind of hp on a daily driver for 2 or 3 years.. im only asking because i never built a sr20det before..

thanks for the info

[Komatsu X]

my sr and doriftopgs wre done by garage works up in palmdale

both are basically same
pistons (mine's 9:1, his was 8:.1)
stock rods
256/264
top mounted turbos t3/t4
enthalpy tune
3" exhaust
um...mine has valve springs and reatiners, redline at 8k
and um...

driving it everyday is basically stupid
that much power every day...shit. i run at least 100 octane, 91 to the track, 110 at the track
so daily driveability ..not for me. not in california. not with the CHP, local police and the theives

f that!


how much hp are you making with your car ???

i run 94 octane at 24psi on my daily driver right now.. .. chp, local police and theives are not a problem for me..

i have a gps real time tracking system in my car.. and theres alot of ways to get around chp and local police..

[BFT Earl]

jwt s4/hks 264 step 2 cams, peak performance valve springs, ras, apexi headgasket, and stock bottom end should get you there as far as internals go along with supporting mods(greddy im, injectors, enthalpy tune, z32 maf, etc). 400whp might be pushing it for the gt2835 turbo though. i'd probably go with a gt2871r .86

[Komatsu X]

everyone is telling me to go with the gt2871r .86 should i get a t28 flange or
t3 ??? the car is only going to be used for drifting and daily driving no drag

let me know asap and illl buy a new turbo tonight

thanks

[wootwoot]

nevermind I give up

[LB.Motoring]

if you "built" or had a rb20 "built" that exceeds 400+hp im sure you know what to do. Its basicly the same thing. The internals in the rb20 are roughly the same tensle strength as the sr, So did you have aftermarket rods? did you feel safe with them? etc.

Im sure you could figure it out. Id try to help more, but i dont see why you would need a 400 hp grocery getter. :doh:

[Komatsu X]

ok here is all the parts i have right now..

greddy valve springs
suspertech titanium retainers
greddy 1.2mm head gasket
arp head studs
hks step 1 256 exhaust and intake cams
nismo 740 injectors.. i have a set of 550.. but i dont know with ones i would use.. what do you think would be better for 400hp?
power fc
greddy intake mani
mr exhaust mani
greddy oil pan
os giken cluch
i just order a gt2871r .86 .. so it should be in the mail tomorrow
z32 maf

so far those are the parts i have..

i was thinking about geting je pistons, kings main bearing and arp main studs. do you think that will last for 3 years around 400hp with stock rods ?? or should i get eagle rods??

hey dose anyone know what rod bearing are better ACL or kings??

thanks for all your help

[usdm180sx]

Might as well get rods if you're going to take it apart. Who's going to tune the motor for you?

[wootwoot]

I would use stock bearings definitely. Eagle rods are lower on the scale of wild rods out there. Treat new stockers or spend some money on good ones. Why a 1.2mm head gasket?... Greddy valve springs arent so hot either. Titanium retainers can also proove to have problems. Definitely use the 740cc's. JE pistons are good. You should check out the solid lifters going on at Freshalloy. Headwork has been the conversation there for sometime now and that is one thing you need to build very well on a sr for it to survive. You're jumping into this a little quickly. Calm down, you're going to not end up with it as good as it could be.

[usdm180sx]

What's wrong with Eagle rods? Lots of people have used Eagle rods without any reliability problems.

[Dousan_PG]

no dont get the solid lifters
they require adjustment regularly iirc.
pistons, CP racing. done.
rods? 400HP? stock is fine, but yeah eagle is good
use stock bearings they work great
crower valve springs are great, u can find comparisons on FA if u do a search, iirc one guy did one recently.
u can use stock retainres no problem too

oh my car should go on dyno this week. and hit the track in 2 weeks. just got it back in saturday.

[usdm180sx]

Yep solid lifters require valve adjustment every 30k miles or so. NOT ideal for daily driver.

[steve shadows]

Well...

Daily driven reliable 400hp I am not sure what you mean?

You mean 400 whp?

why this magic number?

350whp in an s13/14 is a lot of power and with the right driver can yeild 11 second times , i did it, greaser did it before me.

If you need a setup designed and built in stages please PM, thats what I do.

If your looking at a healthy 400whp on 91 octane your pushing it in terms of lifetime of the engein. It doesnt matter which pistons you put in there, detonation or misfiring will eat anything.

1800 bucks for typical build up if you provide the pistons you want, ill have the stock rods treated at that price. You need to RACE BALANCE everything after blueprinting, that includes balancing the crankwith the flywheel and PP assembled to the engine, and the rods individually and all the internals together...most places dont do that, the just gut it and swap in new bearing and hand it back to you.

You can build a 350whp setup using stock oem sr20det shortblock with a metal hg, reatin the hydo lifters and run a 264 step 1 on intake and exaust, with a gt3076r. This is the way to go.

if you have the money for it throw in valve springs from comp or peak Perf and run step 2 cams. You can throw a 50 trim on this and hit the 400 whp mark at around 20 psi, but youll need 810cc or so injectors to boot with a safe fp.

If your interested in the services I offer PM me.

otherwise im always open give advice.

btw. i dont care what people say about the 2871r, if you want fast spool up a 50 trim t3/t4 with the right exaust setup can spool up FASTER than that thing...but some people like bolt on..

[wootwoot]

Solid lifters are not that hard to adjust and many cars come with them stock. He has a big turbo so is going to want to be able to spin high rpm's safely.
Eagle rods...Ive seen bad things and heard some as well.
RPS, I will definitely agree with the turbo argument. The only good thing about the t2 2871r's is bolt on.