hi flow cat suggestion please
#1
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hi flow cat suggestion please
hi guys,
i need to restrict some the smel and niose on my fd. now i run 3" dp,mp and greedy catback.
what high flow cat do you suggest?
i heard good things about bonez and i would be hapy to hear some comments.
i do not run the air pump. does it mater with the bonez?
thanks!!
i need to restrict some the smel and niose on my fd. now i run 3" dp,mp and greedy catback.
what high flow cat do you suggest?
i heard good things about bonez and i would be hapy to hear some comments.
i do not run the air pump. does it mater with the bonez?
thanks!!
#3
Rotary Freak
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Hey SummitRacing sell metallic cat that are 3 inch, since u don't have the air pump, just buy those cut your mid pipe and weld it on, it suppose to flow about 50 more than hi-flow cat and cost $130 or less, I believe those cats are the same cars smb use for thier cats which cost around $600 plus shipping from Aussie.
Khris
Khris
#4
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That's good news to me! How many miles are on it? I just bought a Bonez unit a few months ago. I had a HF cat from Gotham racing(not sure of the brand, but it is definitely different than the Bonez). It fell apart after 5 years and about 10K miles. Stock OMP, Pettit Unlimited ECU@ 15psi(twins) FWIW.
#7
T O R Q U E!
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That's good news to me! How many miles are on it? I just bought a Bonez unit a few months ago. I had a HF cat from Gotham racing(not sure of the brand, but it is definitely different than the Bonez). It fell apart after 5 years and about 10K miles. Stock OMP, Pettit Unlimited ECU@ 15psi(twins) FWIW.
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#9
Urban Combat Vet
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Yes, compared to a midpipe there is a restriction and reduced max power. Any catalytic converter will result in some restriction to the exhaust flow. That's not necessarily a bad thing in terms of preventing boost creep. The trick is getting a cat that is effective and stands up to the heat of a rotary.
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Yes, compared to a midpipe there is a restriction and reduced max power. Any catalytic converter will result in some restriction to the exhaust flow. That's not necessarily a bad thing in terms of preventing boost creep. The trick is getting a cat that is effective and stands up to the heat of a rotary.
can you please give more info about boost creep? what is and when appears?
thanks!!
#11
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Porting the waste-gate to increase it's ability to handle the flow, or re-introducing back-pressure into the exhaust (via a cat) is traditionally the only way to control boost creep. On stock twins, the wastegate is internal and requires removing the turbos to access.
Don't get it confused with boost Spike. While both can lead to detonation, Spike is caused by opening up the intake side and can be controlled by a boost controller. Creep is from opening the exhaust side and is unaffected by a boost controller.
There are probably better, clearer explanations than mine available through a search.
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Hey SummitRacing sell metallic cat that are 3 inch, since u don't have the air pump, just buy those cut your mid pipe and weld it on, it suppose to flow about 50 more than hi-flow cat and cost $130 or less, I believe those cats are the same cars smb use for thier cats which cost around $600 plus shipping from Aussie.
Khris
Khris
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