.:HSTuners::

03-21-2004, 10:44 PM

Hi all, I just "bought" a 90 civic si with some mods and was looking for some advice on the mods. as i said the body is a 90, however the block is from a 95 1.5l (8 valve) and the head is from a 96 1.6l (16 valve). I don't know if this is a common thing to do. but I was wondering what i would need to know about it to have my car run well. I do have the original 8 valve head to the block. the main problem is that right now the car sounds like it is out of time and after a few moments, the engine light comes on and retards the timing. any advice you all have would be greatly apreciated. Oh, also, I am something of a mechanic so don't worry about being technical, I just have experience with 4x4's. this is my first honda and I wasn't sure if i needed to know anything specific. thanx.

MAXed Out · 03-22-2004, 07:55 AM

I think that u just have the SOHC VTEC on the thing. I dunno what retards the timing.

IALuder · 03-22-2004, 12:10 PM

its sounds like someone tried to make a D15B Vtec motor. which i heard is nice if done properly.

it sound like he did it wrong. i would suggest putting back on the D15 non vtec head. then just buy a D16 vtec motor when you get the funds. also for the timing retarding it could be he upgraded the timing belt with the Greddy. i heard it really screws up timing if not tuned right. but i could be wrong!

03-22-2004, 01:05 PM

both heads are sohc, just one has 16 valves instead of eight. the timing belt tensioner is maxed so could i just need a smaller belt?

IALuder · 03-22-2004, 04:57 PM

you would want a tight belt.

yes both heads are sohc. but ones actually made for that motor. D15s' were never ment to be Vtec.

if you want more answers and a lot fast post this up in the civic forum. almost everyone will look at it there.

03-21-2004, 10:44 PM	#1
Rabichulo Posts: n/a	New guy, advice would be hot... Hi all, I just "bought" a 90 civic si with some mods and was looking for some advice on the mods. as i said the body is a 90, however the block is from a 95 1.5l (8 valve) and the head is from a 96 1.6l (16 valve). I don't know if this is a common thing to do. but I was wondering what i would need to know about it to have my car run well. I do have the original 8 valve head to the block. the main problem is that right now the car sounds like it is out of time and after a few moments, the engine light comes on and retards the timing. any advice you all have would be greatly apreciated. Oh, also, I am something of a mechanic so don't worry about being technical, I just have experience with 4x4's. this is my first honda and I wasn't sure if i needed to know anything specific. thanx.

03-22-2004, 07:55 AM	#2
MAXed Out 6th Gear Join Date: Jan 2003 Location: Cleveland, OH Age: 37 Posts: 1,974	I think that u just have the SOHC VTEC on the thing. I dunno what retards the timing. __________________ SHIFT_MyNuts Some people call it an obsession I just call it my maxima 1997 Maxima SE 5spd, Stillen Body Kit, Warpspeed Y & B pipes, Magnaflow Muffler, Koni Yellows & Tein S-tech springs, JVC Headunit, Directed 7" in dash screen,Stillen Intake, red/clear tail lights, AE mod, Paceseter STS, EL-Glow Gauges, Clutchmasters FX300 Clutch, rebuilt tranny, 19" Mille Miglia Evo 5's with Pirelli Pzero's(summer), 18" Hp D-10 hyper silver wrapped in Goodyear ultra HPR, SPW front strut bar, Helios 7000k HID, Motostorm UDP, Viper 5000Vx alarm, 2 12" PowerClass 124 subs, Kenwood 1200 Watt amp, DVD Changer

03-22-2004, 12:10 PM	#3
IALuder Registered User Join Date: Sep 2003 Location: Des Moines IA Age: 38 Posts: 7,908	its sounds like someone tried to make a D15B Vtec motor. which i heard is nice if done properly. it sound like he did it wrong. i would suggest putting back on the D15 non vtec head. then just buy a D16 vtec motor when you get the funds. also for the timing retarding it could be he upgraded the timing belt with the Greddy. i heard it really screws up timing if not tuned right. but i could be wrong! __________________ 93 Si H23vtec......soon to be 12lbs 95 Civic EX....automatic DD if you cant dazzle them with your brillance, baffle them with your bullshit.

03-22-2004, 01:05 PM	#4
Rabichulo Posts: n/a	Re: New guy, advice would be hot... both heads are sohc, just one has 16 valves instead of eight. the timing belt tensioner is maxed so could i just need a smaller belt?

03-22-2004, 04:57 PM	#5
IALuder Registered User Join Date: Sep 2003 Location: Des Moines IA Age: 38 Posts: 7,908	you would want a tight belt. yes both heads are sohc. but ones actually made for that motor. D15s' were never ment to be Vtec. if you want more answers and a lot fast post this up in the civic forum. almost everyone will look at it there. __________________ 93 Si H23vtec......soon to be 12lbs 95 Civic EX....automatic DD if you cant dazzle them with your brillance, baffle them with your bullshit.

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