XS T04S Boost Question
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XS T04S Boost Question
I have had a good search, but couldnt really find the answer.
I have the XS Engineering T04S tubby kit, with a custom v-mount kit running on a large(ish) street port.
What I am wondering is, what sort of boost levels should I be seeing at about 4000rpm?
Thanks
Fish
I have the XS Engineering T04S tubby kit, with a custom v-mount kit running on a large(ish) street port.
What I am wondering is, what sort of boost levels should I be seeing at about 4000rpm?
Thanks
Fish
#5
Weird Cat Man
With my moderate street ported engine, I can see 15 PSI by 3500 if I lug the engine (such as starting from 2000 rpm in 4th gear). In more realistic situations, I don't try to start pulling from 2000 - more like 3000. If I start at 3000, I probably dont' hit full boost till 4000 since the N/A part of the powerband pulls it up there quickly.
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What sort of boost should I be looking at running with one of these? It's set on low boost setting currently (still learning the single tubby power)?
Thanks
Fish
Thanks
Fish
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what is your low boost.. spring pressure? i wouldn't go higher than around 14 - 15psi on pump fuel. that will be plenty to get you in trouble hell one of the track dedicated cars we built was using this turbo at only 10psi. he had noooo trouble hitting 160+ mph on the back straight of vir.
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^^ How do you get both High and Low settings anyways?
Do you just tune your AFR's for your desired "High" boost levels and then back off the boost controller to get your desired "Low" setting?
I'm assuming these settings can be changed quickly (Boost Controller) without the need of reworking a fuel map to obtain a safe AF mixture? Thanks, D
Do you just tune your AFR's for your desired "High" boost levels and then back off the boost controller to get your desired "Low" setting?
I'm assuming these settings can be changed quickly (Boost Controller) without the need of reworking a fuel map to obtain a safe AF mixture? Thanks, D
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