Help! SR20DET advice needed!!!

[Silvia_Freek]

Okay, so heres the deal, s13 redtop sr20det motor swapped into a 91 240sx. motor 100% stock at the moment, but looking to make as close to 400hp as possible while still remaining a reliable daily driver.

as i am a noob, i am interested in what parts, services, etc... are recomended to achieve my goal. Also, i am only interested in engine, electronics and tranny as i have already completed the suspension, etc.

Any and all imput is greatly appreciated. thank you all.

[corriganjoshua]

there are so many variables the best thing to do it search search search...sorry for the downer but everything your wondering is available everywhere

[S13_SideWayz]

well since its stock am guessin... upgrading injectors..turbo...FMIC, exhaust.tuned ECU, manifold..bov, but am not sure if you can reach 400hp with stock internals.. specially for a dayli. am sure other guys will input on this.

[180sx-sweeet]

well like the first guy said... you should check on the net because this kind of topic has been discussed a million times, then a million times again. that being said, the answer to your question is fairly simple! GT30 something turbo, forged pistons, forged rods, 550cc injectors(minimum) i'd go higher, gonna need a T3 exhaust manifold, wastegate(don't get internally wasgated turbo, at this size it will give you headache... boost creep), 3' turbo-back, walbro fuel pump, z32 maf or stand alone, good front mount intercooler(not ebay), and a good dyno tune. suggest a set of cams also for better breathing 264's are good for a daily driver... and thats about it. i mean depending on your budget the sky is limit, but this is pretty much what you NEED to run 400hp

[Silvia_Freek]

thanks, thats actually very helpful, and i took the advice and checked up on the internet, and got pretty much the same thing.

[Mi Beardo es Loco]

The big gains will be seen in the turbo, head, and tuning. Stock bottom end will hold 400 hp but it's never a bad time to upgrade internals if you have the cashola.

[Silvia_Freek]

but it's not needed to go wit a stroker kit is it? i could just get new rods and pistons and the like? is it best to go with a new crank?

[Streetfighter]

250-300 is daily driver safe and fun...

400 is a waste of money and time for a daily driver in my opinion, looking to commute to work daily with it?

[Choku_Dorian]

Originally Posted by Streetfighter

250-300 is daily driver safe and fun...

400 is a waste of money and time for a daily driver in my opinion, looking to commute to work daily with it?

the difference between 300hp and 400hp is in your right foot.

i dd my car for a full year with 400hp...

garrett gt2871r, 720+cc injectors, walbro, z32 mafs, tune. edit. o yea, fmic. forgot cams too, probably need those to break 400.

350-400whp depending on the amount of boost. tune it for 400ish with 20ish psi and run 15psi for DD... not that difficult.

[landins13]

a stroker kit isnt necessary at all, its a good option to consider though if you plan on building the bottom end. Brain Crower has a real nice stroker kit and its one of the cheaper ones you will find, it will put you at a 2.3L instead of 2.0 i used the crower kit on my car, and saw some big gains, but i also built the head and have a gt40R so its kinda a different situation.

oh and PS: there is no way you want to DD 400hp if you hit traffic your effed if you like not spending all your money on gas your effed 400 is better for a toy or track car.

[Silvia_Freek]

Okay, so it seems that maybe 300hp is more the way to go, but i've been getting mixed messages all over the place on stroker kits. Say i dont want a stroker, is it still a good idea to get a new crank, or is the stock one enough? and for 300hp, is it really necessary to get new rods and pistons, should i have to change/upgrade any internals if their in good shape?

[boogerlovers]

the stock crank should be good, just get it rebalanced and machined if necessary...if you do that though you need to take in your flywheel and clutch at the same time as the crank, so that your both internally and externally balanced. I dont see the need for a stroker kit, just buy some forged internals, im rockin Eagle Rods and CP pistons good luck with your project...

[OurOnePassion]

It may just be me and if it's what you want then go for it, but... If you need advice on how to get 400hp, it seems you aren't ready for it in the first place.

And why 400hp? I have to agree that 400 is a bit much for a daily whip. But if you still think you need that much but what to keep it semi-reliable, build it for more than you're going to run. But really... 400hp for the street? What with speed limits, gas prices, and seeing as how racing on the streets is illegal -- why?

[Kouki]

If all you want is the highest number you can get, make sure that you dyno on a Dynojet, they show the most hp. Not the best thing for tuning, but if all you're after is that Mighty HP Number, get on one of those.

[djcobra]

^^ I agree with OurOnePassion... let me ask you one thing 'Silvia Freek' have you even been in a 300~320whp+ SR powerd car? I believe 300~320whp is plenty and much easier for daily driving, but thats my opinion. Just start with the basics and work up from there... ie, upgrade turbo, injectors, fmic etc... before getting into something crazy like 400whp area.

Steve.

[OurOnePassion]

And please consider other things that are worn out on your car that is approaching two decades old. Before you want all that power, are the motor mounts new or still mushy old ones? And all of the suspension parts/bushings that are worn out if you haven't replaced them. If you're wanting that much power, you'll want to go fast -- and you don't want a tie rod to break when you're going fast do you? And you'll also wanna look at a lsd of sorts depending on what you already have. And do you have wider wheels/tires? Personally, I wouldn't want to drive around much in a 400hp s13 with 6.5" wide wheels and an open differential.

Just take into account that there are more things than just power. Consider getting the rest of your car ready first. If you haven't already.

[Silvia_Freek]

well, as for the rest of the car, it's pretty much all done, waiting on tein coilovers for all 4 corners tehn its all done, got the nismo enginge mounts, all new bushings, it has a widebody on it and im ordering new wheels and tires as soon as i can. and i agree that 400 may be too much so im now thinking in the 300hp range. As for your question dj, no i havnt driven in a 300+hp SR powered car, but i have driven some other high horepower cars.

[S13_SideWayz]

thats good stuff now! 300+hp seems better than 400 more affordable and safe! ur pushing for 300 am thinking 200 freaking fl

[azndoc]

I love how people just throw out number out there like I want 10,000 hps for my dd.

lol

Nah seriously, 300 is a lot easier and cheaper to achieve and I'm sure you'll still have lots of fun with it.

Remember Timmy, our cars can be made much lighter with some modifications.

GL

[Psycho 240 Freak]

Here you go, you've probably been waiting for an answer like this. Here's one set up I'm really familiar with that'll put you in the 300 whp range with good gas mileage and very good response.

S13 Blacktop SR
HKS GT2530/GT28RS @17 to 20 psi. Full boost from 3400 rpm to redline
300ZX MAF
Front mount intercooler
Apexi' Intake
3 in downpipe
Apexi N1 exhaust
Splitfire coilpacks
Tuned ECU
.....I forgot 550 cc injectors

These are just mainly the power mods. Don't forget support mods like a Koyo radiator, 300zx fuel filter, walboro 255 fuel pump, etc.

[fliprayzin240sx]

400whp isnt hard to do. The hard part is when you have a budget and not going over it. Also, the question of where you want your power band to be. I can tell you to slap a damn HG in it, go get some 740s, Big ass turbo, top mount, fmic, fuel pump, basic bolt ons(DP exhaust, yada yada) and some good tuning. Having an efficient 400whp is the hard part. No point of having 400whp if shit doesnt spool till 6k rpm...