LS/V-Tec Questions... - HondaClub.com

g2tegg · 05-20-2007, 05:09 PM

Too start off I apologize for probably asking questions that have already been answered. But there are questions I can’t seem to find answers too and any help from you guys would be greatly appreciated!!
To start off I have a 93 Integra LS for a daily driver and a 90 Integra for a parts car. My 1990 has 180,000 on the engine and runs like new. I’m seriously considering a ls/vtec conversion. Here are my questions:

Piston to valve clearance ->is this a issue at all or does that depend on what vtec head i do the conversion with.
ECU - Would I need to run a GSR ecu or would it be possible to run Apexi AFC Neo to control vtec? If the apexi wouldn’t work and i would have a get a GSR ecu and from what I understand will need to get a wiring conversion kit.

The things that I already know I need is a conversion kit to run a oil supply line to the vtec head. I guess my main concern is the electrical for the vtec. All work is going to be done on my parts car so when everything is in place and running I would pull it out and drop it in my daily driver. I am probably missing things and a list of the things I will need to complete this would be greatly appreciated. Thanks again!!

da9guy22 · 06-18-2007, 01:34 PM

you can use a 1992-1993 gsr ecu it came stock in the da9 no wiring harness needed piston to valve clearence will be no problem at all try to get a b18a1 head while you have the motor apart swap on a set of integra type r pistons you'll have the trim
.10 off the valves to make clearence it'll bump compression up
dont spend money on the vafc instead get a set of pistons unfortunatly there is no company that makes rods or a crank for the b18a1 i own one and cant find anyone that makes them good luck though anymore questions send me an email

05-20-2007, 05:09 PM	#1 (permalink)
g2tegg Junior Member Join Date: Dec 2006 Location: Vineland, Ontario Canada Posts: 5	LS/V-Tec Questions... Too start off I apologize for probably asking questions that have already been answered. But there are questions I can’t seem to find answers too and any help from you guys would be greatly appreciated!! To start off I have a 93 Integra LS for a daily driver and a 90 Integra for a parts car. My 1990 has 180,000 on the engine and runs like new. I’m seriously considering a ls/vtec conversion. Here are my questions: Piston to valve clearance ->is this a issue at all or does that depend on what vtec head i do the conversion with. ECU - Would I need to run a GSR ecu or would it be possible to run Apexi AFC Neo to control vtec? If the apexi wouldn’t work and i would have a get a GSR ecu and from what I understand will need to get a wiring conversion kit. The things that I already know I need is a conversion kit to run a oil supply line to the vtec head. I guess my main concern is the electrical for the vtec. All work is going to be done on my parts car so when everything is in place and running I would pull it out and drop it in my daily driver. I am probably missing things and a list of the things I will need to complete this would be greatly appreciated. Thanks again!!

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

06-18-2007, 01:34 PM	#2 (permalink)
da9guy22 Junior Member Join Date: Jun 2007 Location: blairstown, New Jersey United States Posts: 11	you can use a 1992-1993 gsr ecu it came stock in the da9 no wiring harness needed piston to valve clearence will be no problem at all try to get a b18a1 head while you have the motor apart swap on a set of integra type r pistons you'll have the trim .10 off the valves to make clearence it'll bump compression up dont spend money on the vafc instead get a set of pistons unfortunatly there is no company that makes rods or a crank for the b18a1 i own one and cant find anyone that makes them good luck though anymore questions send me an email