Sacker90

Can I slap on a Stage IV with the fuel mods and S-AFC I have listed below?

J-Rat

iTrader: (2)

I am running a stage 4 with 720 primaries, and 890 secondaries. AEM FPR, and a walbro.

At 15 PSI, my injectors are getting a bit maxed...

-TAL-

Ok this is a noob question but.

How exactly do the bnr hybrids work?

Do i have to trade in my core?

Also do they mount to the stock manifold? use internal wg? Is it just a boltup affair?

Sacker90

You send in your corem they upgrade it, it bolts up to your stock manifold

J-Rat

iTrader: (2)

You send him your turbo (s4 or s5). He sends it back to you with whatever stage you choose. And he ports the HELL out of the wastegate. Then its a direct bolt on.

Sacker90

Hey J-Rat, Did they port your wastegate to support the psi? Does you lose boost at high rpms?

Sacker90

Do you have any 1/4 mile or 1/8 mile times?

-TAL-

Yea, i'd be interested in those, and Jrat, does it hold boost till the top? and when do you have full boost by?

Also how high can they flow (psi wise) and still make good power?

Sacker90

Does anyone have track times with a BNR stage 4??

cafcwest

http://www.rx7store.net/index.asp?Pa...ROD&ProdID=732

Stage 4: The stage 4 turbocharger upgrade for the S5 RX7 consists of a modified 60-1 compressor wheel, T04B compressor cover package with dynamic seal backing plate and dynamic sealed thrust collar. Turbine wheel is upgraded with either a 69 trim or a P trim T04, clipped to spec to decrease back pressure and help stabilize rotating assembly RPM. The factory turbine housing is machined to fit the upgraded turbine wheel. The Rotating assemblies are balanced and blue printed to minimize vibrations and to give you a more reliable turbocharger upgrade. The stage 4 turbocharger has a 360 thrust bearing option for the people running 15 psi or more. The wastegate is ported and the turbine housing inlet is portmatched to the gasket. This turbocharger upgrade can make from 350-370 RWHP on a properly modified car. The turbocharger will make peak boost at an estimated 4,500 RPM.


Cliffs:
- The turbocharger will make peak boost at an estimated 4,500 RPM

This is from the description of the Stage 2 - ...dynoed 332 RWHP at 14 psi of boost, also has ran an ET and MPH of 12.3 at 114. The car will reach peak boost around an estimated 3800 RPM

91mazdarx7

so wait the bnr stage 1-4 turbos sold on rx7store.net is just your stock turbo just rebuilt with upgraded parts? i thought it was a whole new turbo do they just about replace everything in the turbo so i take it the racing beat 3'' downpipe will still bolt right up to it after you have it upgraded can someone help me with these questions

cafcwest

yes, yes, yes.

hondahater

iTrader: (2)

yeah it's a rebuild x1000. This is the best way to add horse power without having to go stand alone, full turbo upgrade (very expensive comparatively speaking), and whatever else goes along with that. 799 is actually a very good price for the amount of power you are going to be seeing.

91mazdarx7

thanks for answering i learn something new everyday on here im glad that i can use a racing beat 3'' downpipe and not have to custom make one my last questions are what size primary and secondary injectors should you use with the stage 4 whats the max psi you can have it at and anyone have any 1/4 mile times with there stage 4 and what psi

hondahater

iTrader: (2)

^^^ what he said.

91mazdarx7

i read that and he said they are getting a bit maxed i wont go to far over 15 psi during racing and run around 10 psi everyday so i will be good with 720 prim and 890 sec? also whats the highest psi you can run on the upgraded turbo

Sacker90

Come on now... SOMEBODY has to have some times with a stage IV or at least III...

ddub

Your sig picture is too big.

Sacker90

91mazdarx7

its a rule apparently you didnt read the sticky at the top of the page new users faq because if you did you'd see this posted my icemark
How big can I make my signature in the FC section?

Any graphics used in such signatures are limited to a 20K file size.

Signatures should be less than 460x200 in size, or no more than 10 lines of text. Combination image/text signatures should have no more than 5 lines of text.

ddub

Yep.

Rex4Life

Who cares?? The guys accessing the forum by modem, and of course the mods. I sure one of them is gonna disable your sig pretty soon.

RotaryWeaponSE7EN

iTrader: (6)

Why u guys always gotta get off topic? Just help the man out.

J-Rat

iTrader: (2)

The S4 with a 360 Deg thrust bearing should be good to 19 PSI, according to BNR.

I will post my 1/4 mile times, but the thing is, I was fighting a failing tansmission all day, and couldnt do much..

Best pass was 13.8 @ 105 on a stockport motor, and stock ECU. Again, keep in mind that my transmission is not cooperating, and I broke the shifter that day trying to force that SOB into 2nd gear...

All runs at SIR, in Tucson Az. Approximate altitude 2800 ft.

DylanShupe

Is the AEM FPR a fuel pressure regulator? I guess that's what it means.

What sort of computer mods are we talking about here too?