8-16 valve head swap *pics*
So I got rid of the old sluggish 8 valve head and upgraded to a 16 valver. Very nice imrpovement. 70hp with the 8 valve to ~100 with the 16 valve.
Old 8 valve hotness with a 16 valve, valve cover. Notice my custom cold air intake. :P http://pic14.picturetrail.com/VOL564...9/77065158.jpg Everything unbolted ready to be ripped off: http://pic14.picturetrail.com/VOL564...9/77065162.jpg CX head on top, DX on bottom: http://pic14.picturetrail.com/VOL564...9/77065171.jpg DX intake on left, CX on right: http://pic14.picturetrail.com/VOL564...9/77065175.jpg DX on right, CX on left: http://pic14.picturetrail.com/VOL564...9/77065180.jpg All copper sprayed up with a fresh $20 head gasket. :) http://pic14.picturetrail.com/VOL564...9/77065189.jpg The new 16 valve hotness with another custom cold air intake. 8) http://pic14.picturetrail.com/VOL564...9/77065195.jpg I was worried about the head bolts and the timing belt, but the CX parts worked fine with the DX head. Everything worked out good. I had a loose ground on the thermostat so I spent about 30 minutes ripping my hair out trying to figure out why my fuel pump stopped working all of the sudden. ::) I wasn't paying attention when I was plugging the sensors back in so I mis-matched a few, but that was an easy fix. Very big improvement over the 8 valve head. I'm impressed. It's still slow as ---- with the CX tranny though. 40+mph in first gear and like 70mph in second. :-X __________________ Best Car Insurance | Auto Protection Today | FREE Trade-In Quote |
Re:8-16 valve head swap *pics*
Damn I bet that thing rips with the stock CX mani and precat, haha. That intake is sexy Justin.
Btw, why you taking the tstat ground off anyways.. you dont take it off for a head swap! ;) |
Re:8-16 valve head swap *pics*
Originally Posted by AbaZ
Damn I bet that thing rips with the stock CX mani and precat, haha. That intake is sexy Justin.
Btw, why you taking the tstat ground off anyways.. you dont take it off for a head swap! ;) Amother time I did a head swap my o2 sensor went bad at the same exact time. That had me running in circles looking for problems. ::) Yeah, it actually has 2 cats. :-X I'm not going to ---- with that ---- until I get a new turbo. I'm thinking about buying an adapter plate for this CX mani and just using that. :-\ I'm not sure how much money I want to put into this motor. I'm thinking B series...... __________________ Best Car Insurance | Auto Protection Today | FREE Trade-In Quote |
Re:8-16 valve head swap *pics*
---- those are some shity car parts
the fucken head ports are half the size on a cx :-X do u know if the ex and dx manis are the same size? i would assume so because the dxs have the old si heads ??? |
Re:8-16 valve head swap *pics*
ex has larger runners and a slightly larger plenum
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Re:8-16 valve head swap *pics*
lookin gooo ese. pvc pipes and homedepot couplers/reducers work good for intakes too.
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Re:8-16 valve head swap *pics*
Yes they do. they insulate very well to keep out the heat. Another thing is I would have thought that the valve reliefs would have been different for the 8 valve compared to the 16. How does that work? Or is if different on the obd1 cars?
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Re:8-16 valve head swap *pics*
Originally Posted by crxrx7
Another thing is I would have thought that the valve reliefs would have been different for the 8 valve compared to the 16. How does that work? Or is if different on the obd1 cars?
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Re:8-16 valve head swap *pics*
ya they realized we would throw that whole engine in the lake somewhere ;)
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Re:8-16 valve head swap *pics*
sorry to bring this thread back, but did you chip the ecu also, or use a different ecu...? I would think using the stock cx ecu with that setup would still hurt you, as far as timing/fuel goes...
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