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SplitzO · 11-09-2006, 06:54 PM

Alright I got a 94 civic coupe ex gonna put a b20 in with a gsr head in the car. Probably a gsr or ls tranny. Could I just use a gsr ecu and not have to do shit to the ecu right away? Would I have to change the wiring in the car? Or would the stock wiring thats already in the car work?

AHHVTEC · 11-09-2006, 06:59 PM

if its a obd1 gsr it will hook up but you still got to run a few wires

SplitzO · 11-09-2006, 07:01 PM

obd1 gsr ecu and I will be alright? What other wires would I need to run. How do I know which gsr ecu is obd1?

AHHVTEC · 11-09-2006, 07:03 PM

you got to run vtec wire and i think pressure switch,,but wait for some otheres to respond

SplitzO · 11-09-2006, 07:04 PM

alright thanks for the help

AHHVTEC · 11-09-2006, 07:08 PM

if its a 94 95 gsr ecu its obd1

SplitzO · 11-09-2006, 07:12 PM

alright cool. Umm I know the block is going to need to be tapped for vtec line and what not but does anything else need to be done? Head gasket? Head need to be raised? I had heard someone else says something about maybe doing that but not sure bout that.

EG6Civic83 · 11-09-2006, 08:11 PM

If you pull the head to put the new one on then you need to replace the head gasket.

SplitzO · 11-09-2006, 08:16 PM

alright but what head gasket? gsr head gasket or crv? gsr correct? and where exactly do I tap the block? Anyone got a pic they can show me for reference?

EG6Civic83 · 11-09-2006, 08:27 PM

If it is B20 block then you need that head gasket. The B16/B18 head gaskets are all the same. I know that because my Buddy Club head gasket was for B16/B18. I would contact someone like INLINEFOUR.COM - Mon.~Sat. 9:30am~6:30pm PST - 7242 Garden Grove Blvd. Westminster, Ca. 92683 and ask them what head gasket to use for B20 w/ GSR head.

SplitzO · 11-09-2006, 08:38 PM

Awesome thanks man.

EG6Civic83 · 11-09-2006, 08:44 PM

Not a problem. I would recommend the Buddy Club gasket if you want my suggestion. Great company, good price (only like $15 more than OEM) and it raises compression ratio slightly.

11-09-2006, 06:54 PM	#1
SplitzO Junior Member Join Date: Mar 2006 Posts: 108 iTrader: 0 / 0% Rep Power: 9	94 civic coupe swap ? Alright I got a 94 civic coupe ex gonna put a b20 in with a gsr head in the car. Probably a gsr or ls tranny. Could I just use a gsr ecu and not have to do shit to the ecu right away? Would I have to change the wiring in the car? Or would the stock wiring thats already in the car work?

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11-09-2006, 06:59 PM	#2
AHHVTEC Senior Member Join Date: Oct 2006 Location: Alabama Age: 30 Posts: 11,377 iTrader: 3 / 100% Ride: dc5,mk4 gti,2nd gen civic,92 accord cp,88 crx hf Rep Power: 272	if its a obd1 gsr it will hook up but you still got to run a few wires

11-09-2006, 07:01 PM	#3
SplitzO Junior Member Join Date: Mar 2006 Posts: 108 iTrader: 0 / 0% Rep Power: 9	obd1 gsr ecu and I will be alright? What other wires would I need to run. How do I know which gsr ecu is obd1?

11-09-2006, 07:03 PM	#4
AHHVTEC Senior Member Join Date: Oct 2006 Location: Alabama Age: 30 Posts: 11,377 iTrader: 3 / 100% Ride: dc5,mk4 gti,2nd gen civic,92 accord cp,88 crx hf Rep Power: 272	you got to run vtec wire and i think pressure switch,,but wait for some otheres to respond

11-09-2006, 07:04 PM	#5
SplitzO Junior Member Join Date: Mar 2006 Posts: 108 iTrader: 0 / 0% Rep Power: 9	alright thanks for the help

11-09-2006, 07:08 PM	#6
AHHVTEC Senior Member Join Date: Oct 2006 Location: Alabama Age: 30 Posts: 11,377 iTrader: 3 / 100% Ride: dc5,mk4 gti,2nd gen civic,92 accord cp,88 crx hf Rep Power: 272	if its a 94 95 gsr ecu its obd1

11-09-2006, 07:12 PM	#7
SplitzO Junior Member Join Date: Mar 2006 Posts: 108 iTrader: 0 / 0% Rep Power: 9	alright cool. Umm I know the block is going to need to be tapped for vtec line and what not but does anything else need to be done? Head gasket? Head need to be raised? I had heard someone else says something about maybe doing that but not sure bout that.

11-09-2006, 08:11 PM	#8
EG6Civic83 Senior Member Join Date: Aug 2006 Age: 26 Posts: 118 iTrader: 0 / 0% Ride: 1992 Civic Si Hatchback Rep Power: 8	If you pull the head to put the new one on then you need to replace the head gasket.

11-09-2006, 08:16 PM	#9
SplitzO Junior Member Join Date: Mar 2006 Posts: 108 iTrader: 0 / 0% Rep Power: 9	alright but what head gasket? gsr head gasket or crv? gsr correct? and where exactly do I tap the block? Anyone got a pic they can show me for reference?

11-09-2006, 08:27 PM	#10
EG6Civic83 Senior Member Join Date: Aug 2006 Age: 26 Posts: 118 iTrader: 0 / 0% Ride: 1992 Civic Si Hatchback Rep Power: 8	If it is B20 block then you need that head gasket. The B16/B18 head gaskets are all the same. I know that because my Buddy Club head gasket was for B16/B18. I would contact someone like INLINEFOUR.COM - Mon.~Sat. 9:30am~6:30pm PST - 7242 Garden Grove Blvd. Westminster, Ca. 92683 and ask them what head gasket to use for B20 w/ GSR head.

11-09-2006, 08:38 PM	#11
SplitzO Junior Member Join Date: Mar 2006 Posts: 108 iTrader: 0 / 0% Rep Power: 9	Awesome thanks man.

11-09-2006, 08:44 PM	#12
EG6Civic83 Senior Member Join Date: Aug 2006 Age: 26 Posts: 118 iTrader: 0 / 0% Ride: 1992 Civic Si Hatchback Rep Power: 8	Not a problem. I would recommend the Buddy Club gasket if you want my suggestion. Great company, good price (only like $15 more than OEM) and it raises compression ratio slightly.

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94 civic coupe swap ?