what is the best combination to use in a 13bt running 450-500hp



1000cc in primes and 1700 in sec

or

800cc and 1700

or

550cc and 1000cc

or

880cc and 1700cc are the s6 sec and run them in the primeries

im lost

Well you could probably run stock primaries (550) and run 1600 secondaries. Or maybe 850 primaries and 1200 secondaries. I run stock primaries and 1200 secondaries running 18psi making around 425hp, and I am staying at or below 85% duty cycle at 7500rpms.

i would get stock primaries and just get LARGE secondaries as long you plan on running alot of boost

This is what I'll be running:Well you could probably run stock primaries (550) and run 1600 secondaries. Ken, 57 years young

'94 white, base, pep, red leather,

mods: street port & polished stage II, 3mm Hurley racing seals, upgraded coolant seals,

AEM ECU(If they can ever deliver),

XS T04e single turbo kit,

SMIC (400+cu.in.),

Aquamist 2s water injection kit,

Propane Injection Kit(maybe),

Pettit ss resonated MP,

Pettit ss cat-back,

RP Racing fuel pump,

1600cc injectors,

Profec B(15&20+psi),

3-bar Map Sensor,

Centerforce clutch,

under pulley kit(no air pump),

Pettit short shifter kit,

boost gauge,

LaBreck's bushings,

Evans Coolant

<https://www.nopistons.com/luv94rx7.html>

cheers guys https://www.nopistons.com/forums/pub...#>/BURNOUT.gif

1600 cc secondaries would be a good idea, but you'll need a new fuel rail. 1200's will bolt in. If you can deal with it you could go with 1600 cc primaries as well, but 850's should do the job well. Just make sure that you have a fuel pump and regulator to handle it all. Another popular setup is something around 1000 cc all around. When all of the injectors are the same size the transition can sometimes be a little smoother, depending on the ECU.

Thanks to your post, I have to go change pants now https://www.nopistons.com/forums/pub...R#>/unsure.png :o https://www.nopistons.com/forums/pub...#>/biggrin.png

I don't think the car would idle with 160 lb injectors in the primary rail. Have you tried this?

I don't think the car would idle with 160 lb injectors in the primary rail. Have you tried this?[/quote]

That's what I have in my car. I had it idling at 750-800 RPM, but it's smoother when starting from a stop with a 1000 RPM idle. There are quite a few people running that setup, but it's not widely practiced.

if i find i'm running out fuel i'm gonna go that route too https://www.nopistons.com/forums/pub...IR#>/smile.png