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27 Posts
Looking through the build threads and what pre made turbo kits have to offer for turbochargers its a prety wide variety. Anything from a garrett t25, mitsubishi td04, possibly ihi rf3, mhi t025 from the 1 5 civic si turbo (really small turbine wheel and housing) , ko3 or ko4.
Then you have the borg warner efr6258.
Obviously with these stock bottom end engines we cant boost over 10 psi safely. 8 psi seems to be the common safe number. 9 psi pushing it and 10 psi your waiting for the boom. We cant make too much torque at low rpms as the rods will exit the block. So need to keep full spool around 3000 rpm?
The question and with real world experiance what is a good matched turbo that does well on low boost, satisfies our 3000 rpm 8 psi full boost, and is in about the 200-220hp range efgiciently. Also one that doesnt have a tiny turbine wheel and housing and cause lots of drive pressure. Excess drive pressure just as bad as a plugged cat and negates putting boost to the engine. From prior experiance most hondas are able to run slightly larger turbochargers than other engines of similar size. But thats from b,h,k,f series engines that have good geometry and good flowing heads.
Ive had my fare share of modified and fast high hp hondas. I know what the crz is and fine with the reasonable power that can be added. Not looking for racecar but a fun daily. Also since messing with such a small displacement engine and low power levels this will be interesting and fun. Im strongly considering the borg warner efr6258. Its ball bearing. Internal wastegate, stainless steel turbine housing with v band inlet/outlet, aluminum center section optional, compressor cover with 90* outlet nice and compact. I think it will fit well. Only problem hard to stomach a 2k$ turbo for just 8 psi and not even for 200hp.
I currently have 2013 crz ex, k tuner, ge8 cam and intake. Will be using rdx 410cc injectors. Will be fabricating the turbo setup and using a air/water intercooler setup.
Then you have the borg warner efr6258.
Obviously with these stock bottom end engines we cant boost over 10 psi safely. 8 psi seems to be the common safe number. 9 psi pushing it and 10 psi your waiting for the boom. We cant make too much torque at low rpms as the rods will exit the block. So need to keep full spool around 3000 rpm?
The question and with real world experiance what is a good matched turbo that does well on low boost, satisfies our 3000 rpm 8 psi full boost, and is in about the 200-220hp range efgiciently. Also one that doesnt have a tiny turbine wheel and housing and cause lots of drive pressure. Excess drive pressure just as bad as a plugged cat and negates putting boost to the engine. From prior experiance most hondas are able to run slightly larger turbochargers than other engines of similar size. But thats from b,h,k,f series engines that have good geometry and good flowing heads.
Ive had my fare share of modified and fast high hp hondas. I know what the crz is and fine with the reasonable power that can be added. Not looking for racecar but a fun daily. Also since messing with such a small displacement engine and low power levels this will be interesting and fun. Im strongly considering the borg warner efr6258. Its ball bearing. Internal wastegate, stainless steel turbine housing with v band inlet/outlet, aluminum center section optional, compressor cover with 90* outlet nice and compact. I think it will fit well. Only problem hard to stomach a 2k$ turbo for just 8 psi and not even for 200hp.
I currently have 2013 crz ex, k tuner, ge8 cam and intake. Will be using rdx 410cc injectors. Will be fabricating the turbo setup and using a air/water intercooler setup.