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06-27-2006, 05:03 PM
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#1
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Registered Member
Join Date: Jun 2006
Posts: 31
Country: United States
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D15Z1 in a 91 CRX HF
Has anyone done it before? I got that motor lying around, Still have the ECU for it, Im gunna try using the HF intake manifold and transmission, but convert it to obd1 with a ECU jumper with the dizzy and convert the injectors
just wondering if it does help on getting higher MPG, the motor i have is fine now but it has 200k miles and the d15z1 has about 110k
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06-27-2006, 05:11 PM
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#2
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*shrug*
Join Date: Sep 2005
Posts: 6,195
Country: United States
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It'll help a lot, bunger on here has one in his 88 hf and matt is almost done his sedan swap.
Does the HF have EGR? If not I'd get the VX IM cuz you'll need it's egr setp.
Anyway, hf transmission is perfect, sounds like you're on the right track. Depending on your location and how you want to drive you could be getting 70mpg.
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06-27-2006, 05:42 PM
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#3
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Registered Member
Join Date: Jun 2006
Posts: 31
Country: United States
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Quote:
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Originally Posted by SVOboy
It'll help a lot, bunger on here has one in his 88 hf and matt is almost done his sedan swap.
Does the HF have EGR? If not I'd get the VX IM cuz you'll need it's egr setp.
Anyway, hf transmission is perfect, sounds like you're on the right track. Depending on your location and how you want to drive you could be getting 70mpg.
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sorta ignorant to all this but whats a EGR? on the Intake Mani? where is it located at?
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06-27-2006, 05:46 PM
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#4
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*shrug*
Join Date: Sep 2005
Posts: 6,195
Country: United States
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Exhaust Gas Recirculation Valve
It's on the intake manifold, on the 4th runner I think? I wish I had a picture to show you, I'm pretty useless right now. Hmm, mehbe matt will chime in for me.
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06-27-2006, 06:45 PM
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#5
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Registered Member
Join Date: Feb 2006
Posts: 311
Country: United States
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Quote:
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Originally Posted by SVOboy
Exhaust Gas Recirculation Valve
It's on the intake manifold, on the 4th runner I think? I wish I had a picture to show you, I'm pretty useless right now. Hmm, mehbe matt will chime in for me.
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EGR:
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Anger is a gift!- Zack de la Rocha
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06-28-2006, 09:42 AM
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#6
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Registered Member
Join Date: May 2006
Posts: 201
Country: United States
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If it helps, I'm in the beginning stages of my own '89 HF to D15Z1 swap and just recently picked up a rather complete engine (pan to head w/ intake manifold, intake tube/box, one mount and distributor.) My process will be slow going because of school/work, but if I get rolling fast enough I'll post up a thread to update progress w/ notes. Mak
P.S. Bunger, man that engine is clean!
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'85 CRX Si Original EW3 @ 254k...suck it Detroit
'89 CRX HF-Z1 ~ When haste is needed
'97 Civic DX Hatch ~ Formerly 600hp, now 0hp, soon 115hp.
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06-28-2006, 09:50 AM
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#7
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*shrug*
Join Date: Sep 2005
Posts: 6,195
Country: United States
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How much did you pay for the longblock, mak?
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06-28-2006, 12:01 PM
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#8
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Registered Member
Join Date: Jun 2006
Posts: 31
Country: United States
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06-28-2006, 12:02 PM
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#9
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Registered Member
Join Date: Jun 2006
Posts: 31
Country: United States
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is it the thing i circled? if so ya I do got one
so would i just have to change the injectors,ecu,and dizzy?
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06-28-2006, 12:22 PM
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#10
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*shrug*
Join Date: Sep 2005
Posts: 6,195
Country: United States
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Yeah, that sounds right, you need to ditch the injector resistor box when you go to obd1 injectors though.
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