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Old 04-07-2021, 08:49 AM   #1
89_740Turbo
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Default What setting should I advance/retard my cam gear to? 16T turbo

I am asking for some experienced advice since I do not know much about advanced/retard cam gear settings.

Right now I am running,

- fresh 1994 b230ft squirter block
- ported 90+ manifold
- 16t
- 3in DP
- 2.5in exhaust
- Yoshifab catch can
- new green top injectors
- Sbabbs chipped lh2.2 ecu
- AW71 accumulator mod
- AEM AFR

The next step is the turbo cam and cam gear that I have but my question is, with the higher HP mods I've completed so far, what should I adjust my cam gear to for higher mid to top range power? I know there is different advance/retard settings but I'm unsure what I should adjust it to. I appreciate any advice. Thank you
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Old 04-07-2021, 03:33 PM   #2
shoestring
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Not to be a smart guy, but a properly selected cam needs neither advance nor retard.
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Old 04-07-2021, 03:37 PM   #3
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Depends what you want out of the cam gear, advanced moves peak torque to a lower rpm, retarding raises it. I have an A cam all the way advanced in my NA 245 because the automatic is happier at lower RPMs. I initially bought the gear for my 242 +T so I could retard it and get a little more top end for autocross.
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Old 04-09-2021, 10:52 PM   #4
dalek
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Quote:
Originally Posted by shoestring View Post
Not to be a smart guy, but a properly selected cam needs neither advance nor retard.
With that said, a lot of European cars can advance/retard the intake cam dynamically
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Old 04-10-2021, 11:20 AM   #5
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Quote:
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With that said, a lot of European cars can advance/retard the intake cam dynamically
Yes, but in this case we're talking about a camshaft with fixed timing.
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Old 04-19-2021, 08:27 AM   #6
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My experiences is that Volvos redblocks are not very good to responding cam timing changes.
I had a r-sport turbo ic 244 in early 2000's and i put a cam gear to it, i tried to advance it but i didn't notice anything in butt dyno. I try first 6degrees then 9 and nothing happened.

Unfortunately this car only had about 200hp, so if it was more powerful then maybe cam advancing changes power curve more, but i don't know.

Also i only had a D cam, so if camshaft was more let's say racier then maybe it effects something, i'm not sure.
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Old 04-24-2021, 06:29 PM   #7
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Also unless im mistaken advancing will make your turbo a lot hotter, at least i think
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