Looking for some clarification on this:
1. For higher HP levels ( say 350 reliably) with stock twins i was told change the secondaries to 1300's OR run 4 850's?


2. Cheapest rebuild kit dealer?

 

1. Either will work 4 850's will be easier to tune and give you better street driveability. I have around 350 RWHP w/850's.

 

Id just go with 1300 secondaries, 850s in the primary rail can leak if not properly done and a car ive seen with them runs pretty rough.

 

whats the most common setup?

 

ok...the debate continues....anyone else?

Also any help locating the cheapest Rebuild kit ( all seals and gaskets)

 

so at what horse power / boost level do the injectors need upgrading??? /// at what level also do you need a fuel pump upgrade sorry to butt in ..

 

i believe for anything reliable above 350

 

What are your Power FC settings for the 850cc's? I cant seem to tune out idle and crusing w/ my 850cc's. My driveability sucks w/ them.

 

JhnRx7 do you have datalogit?

 

This is my exact situation, too. With 1300cc injectors in the secondaries does one need any additional fuel pressure regulator for the 13's to be streetable?

 

http://www.gothamracing.com/catalog/...roducts_id=864

or

http://www.gothamracing.com/catalog/...roducts_id=865

FWIW, I have been running 850cc primaries for about 4 years now with no problems.

JhnRX7, next time I see my FD (about a week) I can copy down my injector settings/pulse width etc for you if you like.

 

so th e4 850's handle your mods easily?

 

Yes, I have a Datalogit.

The 850's handle my mods with out a problem (non sequential, full exhaust, intake, intercooler, heavily ported motor, 14lbs of boost), ive just been having trouble w/ crusing...

 

Not sure if this is directed at me. I run 850s and 1300s, and it's just enough for 420 rwhp on my setup. Keep in mind I made my power on a dynapack, which reads low. If I ever get to a dynojet I expect to see 450ish rwhp at 18 psi.

 

http://ausrotary.dntinternet.com/for...light=cheapest

...This is about $1350 US...has everything, including bearings and oil ring cases, genuine Mazda...I never bought from them before....

For sale: SER 6 REBUILD KIT

Item Condition: ALL GENUINE MAZDA PARTS , BRAND NEW
8 x OIL CONTROL RING SPRINGS
8 x INNER AND OUTER OIL CONTROL RING "O" RINGS
8 x OIL CONTROL RING CASES
12 x SIDE SEALS
12 x SIDE SEAL SPRINGS
12 x CORNER SEALS
12 x CORNER SEAL SPRINGS
6 x APEX SEALS
6 x INNER & OUTER APEX SEAL SPRINGS
2 x ROTOR BEARINGS
2 x STATIONARY BEARINGS
1 x FRONT MAIN SEAL
1 x REAR MAIN SEAL
1 x COMPLETE GASKET SET
Price and price conditions: $1825 + freight

 

Was wondering if I'd ever get a response to that part of the thread.
Seems pricey compared to ATKINS @ 1200USD