12a turbo tuning help

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05-07-06 | 06:03 PM

#26

680RWHP12A

Banned. I got OWNED!!!

Joined: Aug 2002

Posts: 4,666

Likes: 1

From: chatsworth,Ca.

Quote:

Originally Posted by borgue

ok just back from a go at tuning.

ok was running 14psi with 0.75gph of water/methanol (50/50) pre turbo.

retarded the timing by 2 degrees, switched to bur9eqp plugs and installed an exhaust.

was seeing around 0.80 L on the wide band and she went hella fast.

were do i go next?

i was gonna try a bigger jet in the water injection but no more boost.

and do i need to go any richer?

Cheers

Ollie

as long as your afr's are good, add methanol with boost.. dont just add boost, add methanol too, to be on the safe side

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05-08-06 | 11:20 AM

#27

borgue

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Joined: Nov 2005

Posts: 52

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From: england

ok gonna go tune some more. gonna try a bigger jet as it has not bogged yet.

as im running 14psi of boost what sort of ball park afr should i try to get?

i was gonna try 0.78 ish L. with the methanol. Around 11.5:1 afr?

or should i go richer?

Cheers.

Ollie

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05-08-06 | 01:01 PM

#28

_raven2510_

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Joined: Apr 2006

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From: las vegas, nevada

they said you cant turbo a 12a Carb

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05-08-06 | 03:34 PM

#29

drifta-7

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Joined: May 2006

Posts: 11

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From: Yakima,Washington

were can i get a tubo for my 12a and what do you think it will cost??

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05-08-06 | 03:41 PM

#30

borgue

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Joined: Nov 2005

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From: england

well my kit cost 500 pounds, and i prob spent that again on upgrading fuel system and getting gauges etc but im sure you guys can get stuff cheaper than i can in the uk....

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05-08-06 | 03:42 PM

#31

sdminus

Thread Starter

Cant be bothered anymore

Joined: Aug 2004

Posts: 465

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From: Norwich UK

There was an elford turbo kit on ebay in the UK last week for £50 complete with carb downpipe wastegate turbo. etc. The same as ollies ( Borgue )

Scott

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07-12-20 | 04:10 AM

#32

zombiemaniac

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Joined: Sep 2012

Posts: 149

Likes: 3

From: Puerto Rico

Rx7 12AT

Quote:

Originally Posted by 680RWHP12A

well the 12a turbo dizzy retards boost up to 5 psi, so if you more that 5 pounds of boost , especially with 9.4 compression and pump gas i would highly reccomend locking the centrifical advance weights in the dizzy. also set the timing at no more than 10 degrees advanced total for the safety of your motor.. use the 9 heat range spark plugs and look for the afr's on the 11's to be again on the safe side.. with conservitive timing and a fairly rich air-fuel mixture 10 pounds of boost should be very reliable!

i sent your buddy a pm as well

Can I talk to you thru Private mesage

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