13b turbo to N/A Are the series 4 13B turbo motors as the naturally aspirates serie

RotorDad · 10-19-2010, 10:58 AM

You can still run boost on all of these, just get your tune right. As far as the rotor specs I believe it goes like this.
13B rotor comparison:
1974-1978 / 9.2:1 @ 11.58 lbs
1984-1985 / 9.4:1 @ 11.58 lbs
1986-1988 NA / 9.4: @ 10.04 lbs
1987-1988 Turbo / 8.5:1 @ 10.04 lbs
1989-1992 NA / 9.7:1 @ 9.54 lbs
1989-1992 Turbo / 9.0:1 @ 9.54 lbs
1993-up Turbo / 9.0: @ 9.54 lbs
Renesis 2004-up / 10.0:1 @ 9.30 lbs

10-19-2010, 10:58 AM	#5
RotorDad Big Ugly Join Date: Apr 2009 Location: Fredericksburg, Va Posts: 591 Rep Power: 17	You can still run boost on all of these, just get your tune right. As far as the rotor specs I believe it goes like this. 13B rotor comparison: 1974-1978 / 9.2:1 @ 11.58 lbs 1984-1985 / 9.4:1 @ 11.58 lbs 1986-1988 NA / 9.4: @ 10.04 lbs 1987-1988 Turbo / 8.5:1 @ 10.04 lbs 1989-1992 NA / 9.7:1 @ 9.54 lbs 1989-1992 Turbo / 9.0:1 @ 9.54 lbs 1993-up Turbo / 9.0: @ 9.54 lbs Renesis 2004-up / 10.0:1 @ 9.30 lbs __________________ *Boosted Big Body On 335's* PS3 ID: Rotordad 1986 Mazda RX7 GXL - Street ported 13BT, Haltech, 62mm, ect. 2006 MazdaSpeed 6 - Eagle, Wiseco, Cobb, ect.

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