manifold question, please help!!

EastonH8 · 10-15-2010, 05:49 AM

Hi guys! So have a question, I was at junk yard a couple days ago looking for parts for my 86 n/a. Came across I believe a 85 12a that had racing beat header so i grabbed it. I know I have to do some modifications for it to fit, anyways I took my stock manifold off and noticed that the engine had the 2 main exhaust holes then a little port below. So if i was to get the racing beat header on is it safe to have that mini port (hole) covered by the rb header?

FC Zach · 10-15-2010, 07:13 AM

Mine is but I have removed all my emissions so in your case I wouldn't know for sure.

EastonH8 · 10-15-2010, 11:37 AM

Humm alright, I've looked at the RB header for the 86 and I didnt see that third port so.

NoDOHC · 10-15-2010, 08:39 PM

That port is used for air injection. You may need it to pass emissions, otherwise, it is unnecessary

EastonH8 · 10-15-2010, 10:53 PM

No emissions in my state so I'm golden, thanks for the help guys

EastonH8 · 10-15-2010, 11:02 PM

*in my city

NoDOHC · 10-17-2010, 02:58 PM

Wait! I just reread the above post... 12A engines are not as long as 13B engines, I am pretty sure the headers won't fit without some modifications. I misread the above post the first time. I thought the headers were on an 85 GSL (13B)

10-15-2010, 05:49 AM	#1
EastonH8 The Newbie Join Date: Oct 2010 iTrader: (0) Posts: 5 Rep Power: 0	manifold question, please help!! Hi guys! So have a question, I was at junk yard a couple days ago looking for parts for my 86 n/a. Came across I believe a 85 12a that had racing beat header so i grabbed it. I know I have to do some modifications for it to fit, anyways I took my stock manifold off and noticed that the engine had the 2 main exhaust holes then a little port below. So if i was to get the racing beat header on is it safe to have that mini port (hole) covered by the rb header?

10-15-2010, 07:13 AM	#2
FC Zach RCC Loves Me Not You Join Date: Mar 2008 Location: Eagleville, TN iTrader: (2) Posts: 2,267 Rep Power: 19	Mine is but I have removed all my emissions so in your case I wouldn't know for sure. __________________ 1993 Yamaha GTS1000 1992 Celica Turbo AllTrac 1987 RX7 Sport 1979 Yamaha G1, KM24 powered 1975 Dolmar KMS4

10-15-2010, 08:39 PM	#4
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin iTrader: (1) Posts: 855 Rep Power: 17	That port is used for air injection. You may need it to pass emissions, otherwise, it is unnecessary __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)

10-17-2010, 02:58 PM	#7
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin iTrader: (1) Posts: 855 Rep Power: 17	Wait! I just reread the above post... 12A engines are not as long as 13B engines, I am pretty sure the headers won't fit without some modifications. I misread the above post the first time. I thought the headers were on an 85 GSL (13B) __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)

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10-15-2010, 11:37 AM	#3
EastonH8 The Newbie Join Date: Oct 2010 iTrader: (0) Posts: 5 Rep Power: 0	Humm alright, I've looked at the RB header for the 86 and I didnt see that third port so.

10-15-2010, 10:53 PM	#5
EastonH8 The Newbie Join Date: Oct 2010 iTrader: (0) Posts: 5 Rep Power: 0	No emissions in my state so I'm golden, thanks for the help guys

10-15-2010, 11:02 PM	#6
EastonH8 The Newbie Join Date: Oct 2010 iTrader: (0) Posts: 5 Rep Power: 0	*in my city