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SilverCRXSi
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« on: May 01, 2002, 09:27:30 PM » |
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Ok, its time for my dumb question. (Arent 90% of mine dumb though)
Anyways I've tossed around the question of swapping in a ZC DOHC (almost did), rebuilding the stock SOHC and even tossed the idea dropping in a d16z6 (92-95 Si VTEC 125HP). As much as I'd love a b16a1 swap its not a realistic possibility since I am a poor student! (Would be fin though)
Anyways IF I went the rebuilding the SOHC route whats involved in rebuilding the engine? I mean I'd get new gaskets, rings and seals. Also I'd wanna drop in some "performance parts" since the engines gonna be in pieces anyways, hey why not? :p
All that I can think of are cams, headers, pistons and a cam shaft.
I'd be content with having my car at the 150-160hp range.
If someone can point me in the right direction even it'd be a great help too.
Also since I'd be doing the rebuild myself (or atleast attempting it) I'd redo the internals to handle a turbo, or is it bad?
Thanks!
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89 Si. -Sold  I drive my shoes. Taken from a Mac forum- "Starship Troopers had it right. We need licenses to have kids." |
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CRXpower.net
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« on: May 01, 2002, 09:27:30 PM » |
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SilverCRXSi
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« Reply #1 on: May 01, 2002, 09:28:41 PM » |
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Also if I ever did do this, how reliable would it be?
Atleast for the time being this would be my daily driver.
Thanks!
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89 Si. -Sold I drive my shoes. Taken from a Mac forum- "Starship Troopers had it right. We need licenses to have kids." |
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im2fast4ucrx
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« Reply #2 on: May 01, 2002, 11:29:17 PM » |
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Rebuilding the Si motor will cost you the same or more than it will cost to buy a zc and get it installed I have been through all of this before. And then with the 130 hp base do some head work approx 500$ and get a 2 1/4 inch exhaust and maybe a some camshafts and you will be pushing well over 160 hp and it will be cheap as hell to do it. Then if you are not satisfied you still ahve the option of boring and adding high comp pistons and rods and all of that shit where you did that to the Si already and only got the hp of a stock zc
JUST LOOKIN OUT FO MY *****S
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ou better recognize
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Phatwhippin CRX
King Asshole!
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« Reply #3 on: May 01, 2002, 11:35:39 PM » |
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hell....... for the $$$ of a rebuild, you'd be better of with a SOHC VTEC swap.
I know I know, the ZC swap is DOHC, and a good motor, bla bla bla........ but in reality, the ZC isn't the optimal motor when it all boils down to reliablity... I mean, for about the same price a SOHC VTEC has 3 hp less, but is:
A) newer
B) has a larger aftermarket
and
C) easier to get one for cheap
look into a SOHC VTEC swap instead of a re-build, its more worth your $$$ in the long run......
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Look who's back, bitches!
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SilverCRXSi
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« Reply #4 on: May 02, 2002, 12:10:21 AM » |
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Ok so say I went with the SOHC VTEC engine, what would I need?
I know the engine (duh), and ECU to have VTEC, but what about the tranny?
And which would be easier to wire? OBD-1 or OBD-2? Are they the same?
I mean if I went the ZC route the point was for me to swap it in myself and save money and also learn how to do it. Same with rebuilding the my d16 engine.
But if I went the SOHC VTEC route, I'd have to pay someone to do it thus reducing the funds I have available to tune it.
Theres a guy around here who just rebuilt his d15 on his 1G CRX, if he can help me out, than I'll rebuild since that'll help me pass emissions next yr. Thats my biggest concern.
I'm not looking to have the fastest car per se, but if I could get into low 15's with the d16a6 i'd be content (until the turbo comes along) but thats not for another 2 yrs atleast.
But say I did re-do the stock Si motor and added cams, pistons ,camshaft and rods (while the rest is being re-built) how reliable will it be? Same as a stock d16a6?
Sorry I'm just tryin to learn all this info, thanks!
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89 Si. -Sold I drive my shoes. Taken from a Mac forum- "Starship Troopers had it right. We need licenses to have kids." |
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lemonrex
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« Reply #5 on: May 02, 2002, 12:32:01 AM » |
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If you can drop a ZC in yourself, you can drop a z6 in yourself. There's little to nothing extra except a few wires to change.
I agree with Phatty (for once). Go with the z6 or y8. The aftermarket is bigger for them than the ZC.
Adding any aftermarket part is giving the engine the potential to fail. So any stock engine is going to be more reliable than the same engine with modifications. That's just something to think about.
Where do you live cause I might be able to get you an amazing deal on a d16z6. I'm not sure if I can get the cable trannies or not but if I can, it will cost you considerably less to get it from me. Not to advertise but I just found out that one of my friends in Nashville that works for Acura got his car auction license and he can get great deals. Plus, he gets to pick out what he wants before everone else even sees the stuff.
Having friends in the automotive industry is great!!!
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Out of the CRX game but still alive.
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MaX
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« Reply #6 on: May 02, 2002, 12:40:46 AM » |
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i want one... lemon... how much?
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img]http://www.auto.vl.ru/catalog_photos/honda/cr-x/honda_cr-x_11835.jpg[/img]
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SilverCRXSi
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« Reply #7 on: May 02, 2002, 12:44:42 AM » |
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Well i take it OBD-1 is easier to tune?
My friend is gonna be swapping in a b16 into his '94 Si next year and I bet I could buy the engine off him but its done over 400,000km. I mean even the mechanic said its not worth rebuilding since its so high. He thinks he can use his existing ECU but I tell him he cant since the b16 has a higher rev limit (am i wrong?)
I just wanna be able to keep the intake I just bought 2 weeks when I transfer it over. (please tell me I can do it!)
Another friend of mine also has '97 Si (EX) with like 50,000 miles and I'm trying to talk him into dropping in a b16 (doubt he will though)
Oh ya, I'm in southwestern Ontario so shipping and customs would rape me up the ass hardcore. But maybe somethin can be worked out.
Anyways my Si engine has about 100,000 miles so thats why I thought it was salvagable.
Thanks for the help everyone! SOHC VTEC, here I come!
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89 Si. -Sold I drive my shoes. Taken from a Mac forum- "Starship Troopers had it right. We need licenses to have kids." |
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CimorelliCRX
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« Reply #8 on: May 02, 2002, 12:37:24 PM » |
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Get the Z6, and inst ead of wiring to OBD1, just get a VTEC controller. They are pretty useful for tuning anyways. You can pick a used one up for about 150 bucks.. Or just get an RPM activated switch, they dont give you proper fuel curves, but you can still do okay with. What you will need is either...
Z6, with OBD1 conversin
or
Z6, SI computer, VTEC controller.
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990 Honda CRX DX
blown Z6 w/si tranny, act clutch, fields vtec controller, flowmaster exhaust, intake, skunk 2 cam gear, b&m fuel pressure regulator, weapon-r coilovers, si wheels
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MaX
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« Reply #9 on: May 02, 2002, 03:13:42 PM » |
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ive been thinkin about this too...
and in theory.... the p28 ecu has a more aggresive fuel curve to help vtec right? and the Si ecu will kinda lean out when you get into the higher rpm's right? then what if you put in a teg ecu as you would with a zc swap... the fuel curve as lot more aggresive and oin theory should help out with the z6. so wouldnt a teg ecu, and a vtec controller be pretty good? in thoery i think it would work pretty good.
what is the fuel cutoff on a teg ecu?
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img]http://www.auto.vl.ru/catalog_photos/honda/cr-x/honda_cr-x_11835.jpg[/img]
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MaX
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« Reply #10 on: May 02, 2002, 03:14:29 PM » |
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oh and i think zydne has a 1 wire conversion w/ ecu. to run the z6 engine... mgiht wanna look into that too.
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img]http://www.auto.vl.ru/catalog_photos/honda/cr-x/honda_cr-x_11835.jpg[/img]
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SilverCRXSi
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« Reply #11 on: May 02, 2002, 06:08:22 PM » |
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Which ECU? CRX Si ECU or Civic Si ECU? I called 1 place today and they told me they have JDM d16z6 engines for $400, but no ECU is included. My biggest concern is the tranny, what the hell I gonna do about that?! |
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89 Si. -Sold I drive my shoes. Taken from a Mac forum- "Starship Troopers had it right. We need licenses to have kids." |
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Venom TypeR
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« Reply #12 on: May 02, 2002, 07:14:25 PM » |
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I'd think that an Si tranny would be fine...
Anyone know what the price of a ZC tranny is? And if one can be gotten with LSD? I know they have short gearing, might be good for the 1/4
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CimorelliCRX
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« Reply #13 on: May 02, 2002, 09:31:55 PM » |
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Silver-Civic EX ECU if you convert to OBD1. SI if you dont...
MaX, thats what I have been thinking, since I have the TEG ECU it will make it run a lot better. But if you get a VTEC controller it will be basically like running OBD1, just you have to tune it. My freinds running an SI ECU, with one of those ebay chips on it, and its pretty good. So I think an RPM activated switch with a Teg ECU will work out good. Or just SI and VTEC controller. Its up to what you want. I sure wish I did this swap instead of my ZC at first, I wanted to also. lol.
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990 Honda CRX DX
blown Z6 w/si tranny, act clutch, fields vtec controller, flowmaster exhaust, intake, skunk 2 cam gear, b&m fuel pressure regulator, weapon-r coilovers, si wheels
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CimorelliCRX
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« Reply #14 on: May 02, 2002, 09:33:50 PM » |
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And MaX, with my Teg ECU I rev to 7200 all day(now i wonder why its gone, lol), and never hit the fuel cutoff, I have been told its at 7800.. So I dont think that will get in the way with the SOHC Vtec.
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990 Honda CRX DX
blown Z6 w/si tranny, act clutch, fields vtec controller, flowmaster exhaust, intake, skunk 2 cam gear, b&m fuel pressure regulator, weapon-r coilovers, si wheels
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