Question on Streetporting
Hi,
i'm not sure what to do now. will let my engine rebuild next month and i'm considering a street port but i've not decided yet if i want one or not. i read a lot of threads here but couldn't find an answer. My car is engine wise fairly stock except the catback (with jdm downpipe) and i don't want to change anything at least the next 2 years. After that i'm planing a bnr stage 3 conversion and therefor the street port could be helpful i think. what i want to know now is: - Does a streetport increase power on stock system without any changes? - Does a streetport affects emission values? - Does a streetport makes the car louder? (i read a brigdeport sounds like a v8 ... my car is really silent and i like that) - Does a streeport affects reliability of the engine? - Any other pros/cons of a streetport with stock system? - Do i need to port the intake ports only or also the exhaust ports? it would be annyoing to take the engine apart again when i start to tune the car ... thanks for answers. |
Take a look here
https://www.rx7club.com/new-member-rx-7-technical-256/fd-794841/ Correct me if I'm wrong but I don't believe it is a good idea to port an engine without tuning it... |
thanks, a bit of decrease in reliability and worse idling. one question answered so far.
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Another thread on the topic:
https://www.rx7club.com/general-rotary-tech-support-11/pros-cons-small-street-port-943239/ Basically, there is no right or wrong answers. You need to decide what is best for your goals and situation. |
thanks, but i already read this. to decide whats best in my situation i need to get those questions answered. for example if the emissions get worse, i can't pass the technical inspections here ... if i need a retune i would also keep stock ports.
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Originally Posted by unreal-icarus
(Post 10545711)
thanks, but i already read this. to decide whats best in my situation i need to get those questions answered. for example if the emissions get worse, i can't pass the technical inspections here ... if i need a retune i would also keep stock ports.
It sounds like stock ports would be better for your purposes. Porting makes the biggest difference on single turbo builds. |
thanks, staying stock right now. too bad, where i live it's nearly impossible to find rotary specialists or even guys that are able to tune a pfc :/.
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^^Sounds like you are making the better choice staying stock ports. BUT, that really is not too bad of a thing. With the correct mods and a good tune the stock ports can produce good power. Example, I put down just under 400RWHP on stock ports and 15psi when I went to a single turbo setup. Although, I do not have to deal with emissions and I am most certain I would fail (no cat. conv.)
Good luck with your build! |
stock ports are optimized more for more low and midrange as well. it's always a trade off
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i'm convinced. thanks ;)
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