Comments on: CRX D15Z1 (Civic VX) Fuel Economy Swap Guide http://www.crxmpg.com/crx-d15z1-civic-vx-fuel-economy-swap-guide/ Thu, 11 Mar 2010 19:26:57 +0000 http://wordpress.org/?v=2.5.1 By: WTB: Honda CRX any year pref automatic/please help - Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com http://www.crxmpg.com/crx-d15z1-civic-vx-fuel-economy-swap-guide/#comment-263 WTB: Honda CRX any year pref automatic/please help - Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com Sun, 31 May 2009 19:19:17 +0000 http://www.crxmpg.com/?p=42#comment-263 [...] If by off chance you land yourself a lemon with a shot engine, you can always do a VX swap - it's easy! This may be too extreme for you, but if an engine swap is not out of the question for you, try to [...] [...] If by off chance you land yourself a lemon with a shot engine, you can always do a VX swap - it’s easy! This may be too extreme for you, but if an engine swap is not out of the question for you, try to [...]

]]> By: Scott http://www.crxmpg.com/crx-d15z1-civic-vx-fuel-economy-swap-guide/#comment-256 Scott Sat, 16 May 2009 18:18:36 +0000 http://www.crxmpg.com/?p=42#comment-256 Yep you guys are going in the right direction i have had my 1992 vx hatch for a few years now and love it.. Didnt really know what a had at first but i knew it was kinda special after filling up the tank and checking the gas millage when i first got it. Everything is stock now besides my big ass air intake which i highly recommend to reduce restiction on your engine so it can flow air in better at very low rpm's. Im currently getting right above 40 mpg in the city of spokane even when i get on the throttle and get up to speed. Ive got 60 mpg on the highway but its a easy 50 mpg on a below normal day. When i finish college and get a good job i plan on getting the k20a type r swap with a shit load of turbo boost so i can smoke corvettes and what not with my little 2094 pound honda.. But dont worry guys im going to keep my b15z1 close by so i can make hybrids jelouse again. Well enjoy your projects i know i will.. Yep you guys are going in the right direction i have had my 1992 vx hatch for a few years now and love it.. Didnt really know what a had at first but i knew it was kinda special after filling up the tank and checking the gas millage when i first got it. Everything is stock now besides my big ass air intake which i highly recommend to reduce restiction on your engine so it can flow air in better at very low rpm’s. Im currently getting right above 40 mpg in the city of spokane even when i get on the throttle and get up to speed. Ive got 60 mpg on the highway but its a easy 50 mpg on a below normal day. When i finish college and get a good job i plan on getting the k20a type r swap with a shit load of turbo boost so i can smoke corvettes and what not with my little 2094 pound honda.. But dont worry guys im going to keep my b15z1 close by so i can make hybrids jelouse again. Well enjoy your projects i know i will..

]]> By: Matt http://www.crxmpg.com/crx-d15z1-civic-vx-fuel-economy-swap-guide/#comment-53 Matt Wed, 05 Nov 2008 04:01:02 +0000 http://www.crxmpg.com/?p=42#comment-53 I should note that it is actually not very difficult to use a VX transmission in a CRX. Hasport actually makes a conversion kit (which includes a clutch actuator) that allows this swap to be done quite easily. The only catch, of course, is the cost of the kit itself (a few hundred dollars). But it might be worthwhile for some, given the fact that the newer transmissions are probably going to be in better condition. Also, if you want to stick with the HF transmission, you can buy a driver side mount from Hasport for the VX motor. This mount works with the two-bolt 1992-1995 driver side bracket on the motor. Unlike using the 1988-1991 bracket and mount, the mount will sit straight in the car. Also, you will not need to cut the timing belt cover OR leave it with an open hole below the bracket, as is the case if you use the 1988-1991 mount and bracket. Of course, this mount does cost $129. So you may or may not think it is worthwhile to use it. One more thing. There is a MUCH easier way to deal with the fuel line than trying to splice things together. Simply bend the line at the fuel filter end instead. This can be done by wrapping the banjo fitting up to the bend in paper towels, sticking it into a sufficiently large steel pipe, and putting some muscle into it (just don't pull on the hose itself). Within seconds, it will just bolt onto the fuel filter like the stock Civic/CRX line. I should note that it is actually not very difficult to use a VX transmission in a CRX. Hasport actually makes a conversion kit (which includes a clutch actuator) that allows this swap to be done quite easily. The only catch, of course, is the cost of the kit itself (a few hundred dollars). But it might be worthwhile for some, given the fact that the newer transmissions are probably going to be in better condition.

Also, if you want to stick with the HF transmission, you can buy a driver side mount from Hasport for the VX motor. This mount works with the two-bolt 1992-1995 driver side bracket on the motor. Unlike using the 1988-1991 bracket and mount, the mount will sit straight in the car. Also, you will not need to cut the timing belt cover OR leave it with an open hole below the bracket, as is the case if you use the 1988-1991 mount and bracket. Of course, this mount does cost $129. So you may or may not think it is worthwhile to use it.

One more thing. There is a MUCH easier way to deal with the fuel line than trying to splice things together. Simply bend the line at the fuel filter end instead. This can be done by wrapping the banjo fitting up to the bend in paper towels, sticking it into a sufficiently large steel pipe, and putting some muscle into it (just don’t pull on the hose itself). Within seconds, it will just bolt onto the fuel filter like the stock Civic/CRX line.

]]> By: Benjamin Jones http://www.crxmpg.com/crx-d15z1-civic-vx-fuel-economy-swap-guide/#comment-47 Benjamin Jones Thu, 09 Oct 2008 00:50:06 +0000 http://www.crxmpg.com/?p=42#comment-47 Ced - It's a 5 speed hf tranny, you can't use the vx tranny without heavy modifications (which is pointless). Also, you can't just swap in the EG wiring harness. I have an integra cluster, but that doesn't really have anything to do with the engine swap. Also, you shouldn't need to change axles. Safe driving > random tubes, but more safety to ya! Ben Ced -

It’s a 5 speed hf tranny, you can’t use the vx tranny without heavy modifications (which is pointless).

Also, you can’t just swap in the EG wiring harness. I have an integra cluster, but that doesn’t really have anything to do with the engine swap. Also, you shouldn’t need to change axles.

Safe driving > random tubes, but more safety to ya!

Ben

]]> By: Ced http://www.crxmpg.com/crx-d15z1-civic-vx-fuel-economy-swap-guide/#comment-46 Ced Tue, 07 Oct 2008 05:33:04 +0000 http://www.crxmpg.com/?p=42#comment-46 Is the crx tranny 4 speed? If so, I might wanna go with a complete d15z1 swap, motor, tranny, ecu, axles, hub, clutch cylinder, wiring harness, cluster, etc. Would it have been easier for you to just attempt a complete swap? It seems to me that everyone on the gassavers.org decided to keep the crx transmission. My plan is to remove every possible panel inside the vehicle, redo w/ fiberglass resin, and weld in a few pipes to withstand a collision (I've heard too many death stories with crx owners). Thanks for all your help once again. Is the crx tranny 4 speed? If so, I might wanna go with a complete d15z1 swap, motor, tranny, ecu, axles, hub, clutch cylinder, wiring harness, cluster, etc.

Would it have been easier for you to just attempt a complete swap? It seems to me that everyone on the gassavers.org decided to keep the crx transmission. My plan is to remove every possible panel inside the vehicle, redo w/ fiberglass resin, and weld in a few pipes to withstand a collision (I’ve heard too many death stories with crx owners).

Thanks for all your help once again.

]]> By: Benjamin Jones http://www.crxmpg.com/crx-d15z1-civic-vx-fuel-economy-swap-guide/#comment-45 Benjamin Jones Sun, 05 Oct 2008 22:37:52 +0000 http://www.crxmpg.com/?p=42#comment-45 Hey Ced - You'll actually need to use the CRX tranny. Just make sure you match 89-91 stuff with 89-91 stuff or 88 stuff with 88 stuff and you'll be fine. Good luck! Benjamin Hey Ced -

You’ll actually need to use the CRX tranny. Just make sure you match 89-91 stuff with 89-91 stuff or 88 stuff with 88 stuff and you’ll be fine.

Good luck!

Benjamin

]]> By: Ced http://www.crxmpg.com/crx-d15z1-civic-vx-fuel-economy-swap-guide/#comment-44 Ced Sun, 05 Oct 2008 21:15:31 +0000 http://www.crxmpg.com/?p=42#comment-44 Nice work, you've inspired me to pickup a beater crx and attempt this sway. Did you have to do any type of modification to the axles? Did the axles bolt right into place from the vx tranny? Is it possible to re-use the crx transmission? Nice work, you’ve inspired me to pickup a beater crx and attempt this sway.
Did you have to do any type of modification to the axles? Did the axles bolt right into place from the vx tranny? Is it possible to re-use the crx transmission?

]]> By: What MPG Would Satisfy You? | Hypermiling, Fuel Economy, and EcoModding News - EcoModder.com http://www.crxmpg.com/crx-d15z1-civic-vx-fuel-economy-swap-guide/#comment-41 What MPG Would Satisfy You? | Hypermiling, Fuel Economy, and EcoModding News - EcoModder.com Mon, 29 Sep 2008 19:08:55 +0000 http://www.crxmpg.com/?p=42#comment-41 [...] this summer I swapped a new engine into my CRX, which quickly bumped up my mileage quite a bit. Nowadays, with a little ecodriving, it’s [...] [...] this summer I swapped a new engine into my CRX, which quickly bumped up my mileage quite a bit. Nowadays, with a little ecodriving, it’s [...]

]]> By: Benjamin Jones http://www.crxmpg.com/crx-d15z1-civic-vx-fuel-economy-swap-guide/#comment-38 Benjamin Jones Wed, 10 Sep 2008 15:12:32 +0000 http://www.crxmpg.com/?p=42#comment-38 Eh, that's not too heavy. You can go with the HX tranny if you want but I don't think you'd find that the vx/cx tranny is that much of a burden. Eh, that’s not too heavy. You can go with the HX tranny if you want but I don’t think you’d find that the vx/cx tranny is that much of a burden.

]]> By: Richard http://www.crxmpg.com/crx-d15z1-civic-vx-fuel-economy-swap-guide/#comment-37 Richard Sat, 06 Sep 2008 19:35:02 +0000 http://www.crxmpg.com/?p=42#comment-37 Hi, I'm considering swaping a vx motor into a 95 Del Sol. The Del Sol currently has the stock dx motor and trans, and I'm averaging 40 - 41 MPG. I would really like to be getting about 50 MPG. If I do the vx swap I'm thinking about using a HX transmission instead of the vx trans. I'm a little worried that the Del Sol's weight of 2300+ might be to much for the tall 3.25 vx gearing. Plus I intend to keep the AC. What do you think about transmission options? Hi,

I’m considering swaping a vx motor into a 95 Del Sol. The Del Sol currently has the stock dx motor and trans, and I’m averaging 40 - 41 MPG. I would really like to be getting about 50 MPG.

If I do the vx swap I’m thinking about using a HX transmission instead of the vx trans. I’m a little worried that the Del Sol’s weight of 2300+ might be to much for the tall 3.25 vx gearing. Plus I intend to keep the AC.

What do you think about transmission options?

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