NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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banzaitoyota

09-02-2003 08:23 PM

1 Attachment(s)

I started the MarKI Collector for the RB Road Race header

banzaitoyota

09-02-2003 08:26 PM

1 Attachment(s)

Making do with some materials around the shop. I used 2 1/2" vice the 2" I would have preferred

banzaitoyota

09-02-2003 08:31 PM

Tacked and ready to trim

88IntegraLS

09-02-2003 08:32 PM

Nice job! So, what is the equation for finding the rpm to tune the collector location for? I have read that collecting further away tunes for higher rpm, which is the opposite for tuning a restriction point (ie. tuned pipes on two stroke engines). I have also heard that the RB collected header is tuned for street use (midrange).

banzaitoyota

09-02-2003 08:33 PM

1 Attachment(s)

trimmed and welded

banzaitoyota

09-02-2003 08:37 PM

1 Attachment(s)

with the collector pipe. It is oval into the 3" inlet for the SPINTECH muffler. Yep... I hear ya'll scraming:"ITS TOO BIG!!!!!". I know I'm experimenting. IF it sux, the components will work on the turboII.

1Revvin7

09-02-2003 08:42 PM

sweet! https://www.nopistons.com/forums/pub...#>/biggrin.png

Racer X

09-02-2003 09:39 PM

Not bad.I should build one of those at the fab shop I work for. https://www.nopistons.com/forums/pub...#>/biggrin.png I'm only there 7 days a week 10 hours a day. https://www.nopistons.com/forums/pub...DIR#>/ohmy.png

banzaitoyota

09-09-2003 07:12 PM

Dyno test of this beast suxor!

https://www.nopistons.com/forums/index.php?...=0&#entry330203

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