Interesting stuff--- the new tubular manifold is happier with less inital advance at idle ( down to 6deg. ) With the vac.advance disconnected.
the centrifugal max. advance goes out to 33deg. and with vac. connected another 12+ degrees --- due to being without load ,therefor only a wisp of throttle opening -- not real life senario . sounds georgeous yet revs like a 1200 nissan!
more fun stuff !
steve
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Always look at "ACTIVE TOPICS" to see all posts in date & time order as they are sometimes moved; or look at "Your Posts".
Please add Reg. nrs. when posting a photo or anything about a car as this will help searches. Don't add punctuation next to nr. as this negates search.
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tuning v8
Re: tuning v8
Steve, do you have any pictures you can post of your new tubular manifold setup?
Would be interested in seeing what you have done.
Would be interested in seeing what you have done.
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daimlersteve
- Helpful Person
- Posts: 496
- Joined: Wed Mar 09, 2016 11:20 am
Re: tuning v8
Will do,
basically using the centre section of a standard manifold ,modifying the four outlets ,then making up the runners in 1 1/4 " stainless tube. Not a job for the inexperienced in tig and small pipework as it took several days to make up then machine the flanges on the mill .
Its not a job that you take on to charge for but quite satisfying as a completed project just to get the most out of two SU s. Its a pity its too complicated to cast up replicas of the finished item.
I'm waiting for the current owner of a past owned SP to get it on a Dyno , then i will piggy back the next spot just to see the difference on the same Dyno.
Hey , is Digby Smith still using his SP in Melbourne ?
Steve
basically using the centre section of a standard manifold ,modifying the four outlets ,then making up the runners in 1 1/4 " stainless tube. Not a job for the inexperienced in tig and small pipework as it took several days to make up then machine the flanges on the mill .
Its not a job that you take on to charge for but quite satisfying as a completed project just to get the most out of two SU s. Its a pity its too complicated to cast up replicas of the finished item.
I'm waiting for the current owner of a past owned SP to get it on a Dyno , then i will piggy back the next spot just to see the difference on the same Dyno.
Hey , is Digby Smith still using his SP in Melbourne ?
Steve
Re: tuning v8
Hi
Both the manifolds on Margaret's money pit, I mean SP, broke at the flanges and I could not get a replacement pair and did not fancy having them welded as having spent a lot of my career repairing cast iron pipes I think at best it is a temporary measure. Geof Douglas put me on to Stainless Exhaust Specialists Unit 9 County Estate Outhwaite Sutton in Ashfield Nottingham England NG17 2PD Their web site is www.stainless-exhaust.com. and their e-mail address is sales@stainless-exhaust.com
Regards
Colin
Both the manifolds on Margaret's money pit, I mean SP, broke at the flanges and I could not get a replacement pair and did not fancy having them welded as having spent a lot of my career repairing cast iron pipes I think at best it is a temporary measure. Geof Douglas put me on to Stainless Exhaust Specialists Unit 9 County Estate Outhwaite Sutton in Ashfield Nottingham England NG17 2PD Their web site is www.stainless-exhaust.com. and their e-mail address is sales@stainless-exhaust.com
Regards
Colin
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daimlersteve
- Helpful Person
- Posts: 496
- Joined: Wed Mar 09, 2016 11:20 am
Re: tuning v8
Well ,bugga me days . Hi Diggers, are you still working then ? . I must get over to the your neck of the woods .
Steve
Steve
Re: tuning v8
Yep Steve,
Still working someone has to keep the wheels of industry turning, ( sorry to hijack the thread )
And keeping the SP up to spec !
Still working someone has to keep the wheels of industry turning, ( sorry to hijack the thread )
And keeping the SP up to spec !
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