b16 to b18
X-Motoring
Joined: Nov 2000
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From: bay area
juss restatin ur post by sayin the b18c block with b16 head is a poorman's itr. seems interestin, i might be down to do it this christmas, funny thing, i let this one dood at my work drive my car(he has a 325i with M3 badges) after drivin it, he says, man ur car is torquey. im like hahaha, ur sayin that and u own a beamer. im like its a b16, got some torque but not torquey. lol
Originally posted by Tirod-[EJ]
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Rotorphile.
Joined: Mar 2002
Posts: 10,120
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From: Richmond, VA
Whenever I have heard the term "Poor man's ITR", it also ment that ITR P73 high-comp pistons and ITR camshafts were used too... otherwise it would just be a GS-R that didn't quite make it (the PR3 head is lower compression then the P72 GS-R, yes?)
Thread Starter
Senior Member
Joined: Jul 2002
Posts: 682
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From: tx
terminolgy 101:
pr3 piston heads are from the si yes/no
p72 are the gsr's yes/no
?'s:
by running the gsr block with no mod's to it and putting my b16a2 head on it, will yield what kinda C/R.
will the b16a2 valves match up to the gsr's piston heads?
can the si pistons fit the b18c1? aren't the cylinder walls larger diameter?
pr3 piston heads are from the si yes/no
p72 are the gsr's yes/no
?'s:
by running the gsr block with no mod's to it and putting my b16a2 head on it, will yield what kinda C/R.
will the b16a2 valves match up to the gsr's piston heads?
can the si pistons fit the b18c1? aren't the cylinder walls larger diameter?
Rotorphile.
Joined: Mar 2002
Posts: 10,120
Likes: 0
From: Richmond, VA
Originally posted by 4-banging
terminolgy 101:
pr3 piston heads are from the si yes/no
p72 are the gsr's yes/no
?'s:
by running the gsr block with no mod's to it and putting my b16a2 head on it, will yield what kinda C/R.
will the b16a2 valves match up to the gsr's piston heads?
can the si pistons fit the b18c1? aren't the cylinder walls larger diameter?
terminolgy 101:
pr3 piston heads are from the si yes/no
p72 are the gsr's yes/no
?'s:
by running the gsr block with no mod's to it and putting my b16a2 head on it, will yield what kinda C/R.
will the b16a2 valves match up to the gsr's piston heads?
can the si pistons fit the b18c1? aren't the cylinder walls larger diameter?
Senior Member
Joined: Jan 2001
Posts: 13,540
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Originally posted by Outxider
juss restatin ur post by sayin the b18c block with b16 head is a poorman's itr. seems interestin, i might be down to do it this christmas, funny thing, i let this one dood at my work drive my car(he has a 325i with M3 badges) after drivin it, he says, man ur car is torquey. im like hahaha, ur sayin that and u own a beamer. im like its a b16, got some torque but not torquey. lol
juss restatin ur post by sayin the b18c block with b16 head is a poorman's itr. seems interestin, i might be down to do it this christmas, funny thing, i let this one dood at my work drive my car(he has a 325i with M3 badges) after drivin it, he says, man ur car is torquey. im like hahaha, ur sayin that and u own a beamer. im like its a b16, got some torque but not torquey. lol
One of the original OG's
Joined: Oct 2002
Posts: 1,429
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From: San Antonio, Texas
I don't see the point, you could get the power elsewhere. The B16A block is much better than the GSR block. The r/s ratio is near perfect on the B16A. This is a huge waste of time any money in my book.
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Joined: Mar 2002
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Originally posted by Kai
If by piston heads you mean cylinder heads, yes, a PR3 head is a "B16 head", a 92-93 "GS-R head", or a "Type R head" and a P72 head is a 94-01 "GS-R head." As for the CR, I don't know what it would be like, because B18C engines use lower compression pistons then B16s and B16 PR3 heads are lower compression heads then P72 GS-R's. The end result should be lower then the stock B16 or B18C engines, however. The pistons are interchangible, and the valve reliefs match.
If by piston heads you mean cylinder heads, yes, a PR3 head is a "B16 head", a 92-93 "GS-R head", or a "Type R head" and a P72 head is a 94-01 "GS-R head." As for the CR, I don't know what it would be like, because B18C engines use lower compression pistons then B16s and B16 PR3 heads are lower compression heads then P72 GS-R's. The end result should be lower then the stock B16 or B18C engines, however. The pistons are interchangible, and the valve reliefs match.
thats not how you read the head to see what it is? the PR3 P72 and P73 are just what pistons they are. not the head.
Thread Starter
Senior Member
Joined: Jul 2002
Posts: 682
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From: tx
QUOTE]Originally posted by Redcivic
I don't see the point, you could get the power elsewhere. The B16A block is much better than the GSR block. The r/s ratio is near perfect on the B16A. This is a huge waste of time any money in my book. [/QUOTE]
what is r/s?, and how would gaining around 15-20 ft/lbs of torque be a waste of time?
good, thanks
gotcha
ok,
with no internals changed from the b18c block (96+) can anyone give me the C/R considering my b16a2 head mated ontop?
not sure what kinda gasket I have (thinkness wise, it's stock)
how will this block change my HP? how much more?
things to replace:
water pump
timing belt
headers (unless my dc 4-1 headers will fit?)
bolts (new ARP bolts or is that overkill)
maybe my motor mounts (polyurethane)
thermostat?
water hoses?
sorry alotta q's
I don't see the point, you could get the power elsewhere. The B16A block is much better than the GSR block. The r/s ratio is near perfect on the B16A. This is a huge waste of time any money in my book. [/QUOTE]
what is r/s?, and how would gaining around 15-20 ft/lbs of torque be a waste of time?
Originally posted by Kai
The pistons are interchangible, and the valve reliefs match.
The pistons are interchangible, and the valve reliefs match.
Originally posted by Kai
BTW, the cylinders are the same width, but the B18C has a taller block and longer stroke. Basically, the cylinder is longer, not fatter.
BTW, the cylinders are the same width, but the B18C has a taller block and longer stroke. Basically, the cylinder is longer, not fatter.
ok,
with no internals changed from the b18c block (96+) can anyone give me the C/R considering my b16a2 head mated ontop?
not sure what kinda gasket I have (thinkness wise, it's stock)
how will this block change my HP? how much more?
things to replace:
water pump
timing belt
headers (unless my dc 4-1 headers will fit?)
bolts (new ARP bolts or is that overkill)
maybe my motor mounts (polyurethane)
thermostat?
water hoses?
sorry alotta q's