DriveFast7

iTrader: (1)

Who has carb jetting for Dellorto on 13b 4-port streetport?

Using Racing Beat 2 piece wraparound manifold. And a good low restriction exhaust.

Looking specifically for:
Venturi Size
Main fuel jet
Main Air jet
Emulsion Tube
Idle fuel jet holder
Idle fuel jet
What length and brand of velocity stacks

It's for my REPU. Got it running good but can use finetuning. Thanks,

RotorMotorDriver

iTrader: (1)

Maybe this will help? http://www.gruntled.com/Dellorto/

~T.J.

DriveFast7

iTrader: (1)

The ever wise rx7club.com has no input on jetting dellorto on 13b 4-port streetport?

Thanks for the link T.J. I contributed to that site. I wrote the Brad article and pointed the site owner towards the exploded diagram schematic!

DriveFast7

iTrader: (1)

bump for jetting request.

DriveFast7

iTrader: (1)

A previous owner had Paul from Rotorsport in Campbell CA jet it with 205 fuel, 210 air and 75 idle fuel jets. Ran lean all over the rpm range. Lots of stumble and cough.

I redid my exhaust after the cab using a much better flowmaster collector. dual 2" into single 2.5" pipe. Then a 2.5" Magnaflow muffler with a 27" long can!

Jetting I'm using right now:
245 fuel
220 air
82 idle fuel jet
and floats set to 14mm just before needle spring moves and 25mm full drop.

Runs better than ever before. Lots more power, REALLY likes to rev especially with the aluminum flywheel and 4.62 gears!


Runs lots better now, no s