88 Turbo II- 4 port or 6 port?
Is the 88 Turbo II engine a 4 port or 6 port?. The reason I am asking is because both the turbo and non-turbo engines in 88 had the same compression 9.4:1. My understanding is that other all 13b turbo engines after 1984 were 4 port and all non turbo engines were 6 port. Please clarify?
Ryad. |
i'm pretty sure all turbo engine r 4 port, as for compression, i believe the turbos have something like 8.7:1 compression and non turbo engines, depending on the year, have between 9.2 to 9.7.
don't remember where it is but i found lots of info on different years and compression ratios on this site. http://members.ij.net/mrmazda/toolbox.html the HOW TO section gives good info on swaps. there's also areas on identification thru the various years. |
all turbo II's are 4 port. the compresion on a turbo motor is not the same compression as the non-turbo.
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The 13B turbos are 4-port. 86-88 turbo rotors are 8.5:1 and 89-91 are 9.0:1. 86-88 NA are 9.4:1 and 89-91 NA are 9.7:1.
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Thanks guys for the info.
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For more info on compression ratio's and rotor wheight, flywheel identification etc... just go www.mazdatrix.com , and check the FAQ section, it's all there!
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