burnoutkid

Hi all,

I currently have a high port red top sr20de on a B14 and planning to boost it up with T70's in the aim to pull some 450hp or more.

What I have:
1. t70
2. Warlboro 255
3. 4 set pulleys
4. Fidanza flywheel
5. 3" side exit exhaust
6. Ultimate emanage for fuel management
7. Greddy MAP sensor
8. Turbosmart supersonic BOV and wastegate
9. 8 pcs 370cc side feed injectors on a custom intake mani.
10. nismo fuel reg
11. P11 LSD tranny
13. tri puck clutch (exedy)
14. I'm going for LOG mani for the turbo, batteries are placed at the trunk for space
15. front mount Intercooler is in place


All internals are currently stock! i'm not familiar with my comp yet. correct me if I'm wrong but i think its 10:1 or 9.5:1 please educate...

I would like to know what else do i need to make sure the motor will hold up when boosted. Or is this possible to put together at all.

What kind of problems should I expect?
What should I get for internals at this point?
Shoul I or should i not proceed with the T70?

 

haasyboy25

Are you running a staged fuel injector set-up since you have "8 370cc injectors"? Thats sweet if you are, its a great design. Having a PCM controlled, 2nd set of injectors to run at higher RPMS, makes a high powered set-up quite fuel efficient when just cruising it around because you can run smaller injectors. Works even better with ITB's because the 2nd set is above the throttle plates, acting as a electronic fuel injected carb style set-up which atomizes the fuel A LOT better.

Good luck with the build, looks like a killer set-up

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BigTurboSER

You shouldn't have any trouble as long as you can get the 8 injectors to work for you. We actually had a local to the same style injector setup with success a couple years ago.

As far as the T70, I ran the exact same setup as far as engine and turbo setup go on my B14 a year or two ago with success. The motor ran on 20 psi for a full year and saw a good bit of racing and took it without skipping a beat! You will probably need higher than 93 octane fuel if you plan on hitting those numbers on a completely stock motor, but don't be scared to turn it up too much!

Good luck!

__________________
1995 200sx SER Found, time to make some HP

Nyc Sr20PowerD

the power is in the fuel


hint hint octane

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burnoutkid

Are you running a staged fuel injector set-up = Yes I am.

I'm running the car on 96 Octane fuel.

My concern is the motor being high comp as I may not be able to max boost. Is there anything I should replace internally jsut to be in the safe side say I would like to put out 2 bar at least from the t70....

It's a bit difficult to look for an avenir block where I live but I'm still considering it as an option. Any suggestions for the internal set up.

I'll be posting pictures soon for this set up.

BigTurboSER

You want to run 2 bar aka 29 psi of boost on a completely stock SR20DE, and you want to do this on 96 octane fuel? The chances of you running that much boost or more on 96 octane is not going to happen, and I would be willing to bet the motor won't last a month on 30 pounds of boost.

If you want to run a motor on that much boost I'd suggest forged pistons/rods and a good valvetrain if you want it to last longer than a few pulls. These engines are strong, but not 30 psi strong in most cases.

burnoutkid

Thanks I do have that in mind, low comp forged pistons and con rods and copper gasket.

If I do have this can I pull more than 30psi of boost and reach 500++ Hp without blowing?

haasyboy25

The valvetrain is what you should change next. Titanium springs, rocker arm stoppers and some S4 cams would be relatively cheep but greatly increase the head's strength and efficiency. You could reach your power goals at a higher RPM and a lower boost level...

Get Outlaw spacers to for cooler IM temps too

Setzer

I made a log mani for a t70 I have. I might roll it out on the sentra in a while. I'll see how it goes.

Nyc Sr20PowerD

is that 96 octane ron or 96 octane anti knock index?

Jedi_SR20det

hey this set-up sounds familiar... hahahaa!

burnoutkid

s4 cams doesn't actually come cheap where I live but thanks.

where can I get the outlaw spacers?

Nyc: The 96 octane is Ron

Jedi: Rather this than the Iprezza sti bro what ya think? =)

I'm getting a different feedback with some people that its better to use ram manifolds than log. Any insights on this one? size and specs if you may thank you.

I would prefer a faster spooling action if log will create lag how can this be rectified if log mani is the way to go??

haasyboy25

My friend bought his spacers in the forum's classified section, but I know there a vendors who sell them here too.

Occasionally you can get lucky and catch a set of S3's & S4's for cheap in the classified section. 350-375 being cheap for a kickass set of cams, but still decent chunk from the wallet none the less.

If you just bought springs, retainers and outlaw spacers for now, you would see a noticeable increase in both thermal efficiency and high RPM integrity for far less $ then the cams alone. Drop cams into it later on, when money comes your way and enjoy a totally new feeling set-up !

Manifold wise, Tubular Ram style will be slightly better for reducing lag compared to a Log style. Each cylinder having uneven distances between exhaust valves and the turbine inlet causes a lag to occur in turbine acceleration at low RPM. A tubular manifold is designed to distribute the exhaust flow at even times to the combustion pulses to evenly spin the turbine off idle speed. Plus they just look sweeet

Jedi_SR20det

just give me all ur parts and get the sti. haha! let me get the t3 and bumper. whats ur last price for the turbo? im returning the gti-r t28 *** its shaft play is weird. check out my post about the shaft play here in the turbo section.

burnoutkid

@haasyboy25,

Thanks for the info man, I agree that the tubular do look sweet on the engine bay. I do not want to take out all the fans for the rad probably just leave one and add one or two push fans in front between the IC and Rad.

I will definitely go for the custom tubular mani for the T70.

@Jedi,

I can bring down the price on the t3 that low bro, the best would be 7k it's with Al motor of HP racing you can hit em and ask for it. My car is in HP racing right now.

Jedi_SR20det

aight coo thanks dude.

Freek

You don't want to run anything higher then 0,6 bar on 96 ron fuel and stock internals.
My stock 9,5:1 motor detonates at 0,7 bar on 98 ron fuel so please upgrade pistons and rods to begin with!

2 bar is not something a stock or lightly upgraded sr20 can handle, you need serious blockwork for that kind of boost levels.

burnoutkid

Thanks for the insights, I get the pistons and rods but what kind of block work are we talking about here? 2 bar wouldn't be enough for what I am looking for.

the t70 is good up to 600hp getting just 2 bar out of it would make it useless for what I am aiming for but I want to do it right please enlighten...

haasyboy25

Bore and sleeve the block at a reputable machine shop, have the faces of the block and head machine matched to ensure the headgasket keeps it shape at high stress, use forged pistons and rods, good bearings, Swain coating on pistons/rods/bearings, Cometic headgasket, ARP head studs and if there is a shop that can do it correctly where you live, have your crank balanced. With the swain coating, balanced crank, matched faces and a meticulous build, your going to greatly extend the life of your high hp monster. Should get you reliability @ high boost levels for at least a little while ...

burnoutkid