ls/vtec question
i am in the middle of a ls/vtec swap
b18b bottom end , with a b17a1 head need to know if i can use the b17 gsr head studs, also need to know if i have to cut the releifs in the b18b pistons as a frined of mine just did a b16/b20 swap in his civic and did not do any thing to the pistons thanks alot joe griffin nova scotia, canada |
Re: ls/vtec question
No and NO
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Re: ls/vtec question
b18 gsr head studs or bolts and a b18gsr timing belt should be the order of the day. While you're at it, might as well replace the ls water pump with a gsr unit...22 teeth as compared to 18.
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Re: ls/vtec question
ok thanks,
as i stated befor , my buddie did a b20/b16 swap, he also used his b16 head bolts instead of the 1.8 gsr headstuds whats the benifits of using the 1.8gsr timing belt and water pump, better flow for the cooling ?????? joe griffin |
Re: ls/vtec question
Originally Posted by -GRIFFIN-
i am in the middle of a ls/vtec swap
b18b bottom end , with a b17a1 head need to know if i can use the b17 gsr head studs, also need to know if i have to cut the releifs in the b18b pistons as a frined of mine just did a b16/b20 swap in his civic and did not do any thing to the pistons thanks alot joe griffin nova scotia, canada it is a good idea to upgrade the water pump. yes it helps with the cooling good luck with the build, i just got done building my lsvtec. send me a message if you need any help with it... |
Re: ls/vtec question
Originally Posted by -GRIFFIN-
ok thanks,
as i stated befor , my buddie did a b20/b16 swap, he also used his b16 head bolts instead of the 1.8 gsr headstuds whats the benifits of using the 1.8gsr timing belt and water pump, better flow for the cooling ?????? joe griffin |
Re: ls/vtec question
the reason for using the 22 tooth water pump for the LS vtec is that the 17 tooth pump will cavitate (spin soo fast that it will no longer effectively push any water through the cooling system) at around 8000 rpms
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Re: ls/vtec question
Originally Posted by DC2 mang
the reason for using the 22 tooth water pump for the LS vtec is that the 17 tooth pump will cavitate (spin soo fast that it will no longer effectively push any water through the cooling system) at around 8000 rpms
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Re: ls/vtec question
Originally Posted by -GRIFFIN-
i am in the middle of a ls/vtec swap
b18b bottom end , with a b17a1 head need to know if i can use the b17 gsr head studs, also need to know if i have to cut the releifs in the b18b pistons as a frined of mine just did a b16/b20 swap in his civic and did not do any thing to the pistons thanks alot joe griffin nova scotia, canada for a real good LS/vtec site and building guied best one: How to build a "RELIABLE" lsvtec/b20vtec guide. http://b20vtec.com/forums/showthread.php?t=56400 Mild NA LS/Vtec Build http://www.honda-tech.com/zerothread?id=1118097 both are very good build.. ps upgrade to ARP rod studs at the lease
Originally Posted by slo_crx1
18 tooth ;)...I have 3 LS pumps sitting in front of me...all say 18t. My gsr and b16a pumps all say 22t.
VTEC b water pumps 22t non vtec 19t use the timming belt that goes with your waterpump |
Re: ls/vtec question
did the links and info help or are u more lost?
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Re: ls/vtec question
Originally Posted by punkracer
the only reason for your buddie cutting vavle relief is cause of the valves will hit the pistions..
for a real good LS/vtec site and building guied best one: How to build a "RELIABLE" lsvtec/b20vtec guide. http://b20vtec.com/forums/showthread.php?t=56400 Mild NA LS/Vtec Build http://www.honda-tech.com/zerothread?id=1118097 both are very good build.. ps upgrade to ARP rod studs at the lease wrong...19t or 19 teeth are on LS water pumps... ive counted the five i have VTEC b water pumps 22t non vtec 19t use the timming belt that goes with your waterpump Werd on the ARP rod bolts. For $45 or so it's worth the extra insurance. And for a bump up in oil pressure, stick a spacer on top of the spring in the oil pumps's pressure relief valve. Oil pump itself from b18b's should be the same as gsr and b16 pumps from 94+ with the exception of a lower spring rate on the release valve. |
Re: ls/vtec question
Originally Posted by slo_crx1
Haha...you're right on the pump...just went and looked at the LS pump I have and it was double stamped (thought it said 18t)...counted them and it's 19...------' cheapo rebuilds :P
Werd on the ARP rod bolts. For $45 or so it's worth the extra insurance. And for a bump up in oil pressure, stick a spacer on top of the spring in the oil pumps's pressure relief valve. Oil pump itself from b18b's should be the same as gsr and b16 pumps from 94+ with the exception of a lower spring rate on the release valve. |
Re: ls/vtec question
It was a trick I found off Endyn's old website years ago. I'm looking over the site again right now, but I can't seem to find it. Pretty much it just entails removing the allen-key plug from the bottom of the oil pump and adding a spacer of some sort (i.e. a washer) to put more pressure on the release spring.
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Re: ls/vtec question
makes sence ...kinda liek shimming a wastgate
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Re: ls/vtec question
http://www.theoldone.com/components/..._oil_pumps.htm they sell them now....
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Re: ls/vtec question
What about using a ITR oil pump? And I had some one tell me to use a ITR vtec solenoid?
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Re: ls/vtec question
Originally Posted by lance_ecl
What about using a ITR oil pump? And I had some one tell me to use a ITR vtec solenoid?
as for the solenoid. there the same....this is just a classic cause its a type r its better. the type r is a well made engine balanced and blueprinted from the factory...... as for the lsvtec if you were to spend the lil extra when assembling it would be just as good as a type r, or in some eyes better...i put my lsvtec together stock everything lsbottom end 99si head on...and stomped my buddies type r all daY... in the world of motor choise alot of people do diffrent things: -PoorMans type r (gsr bottom end, B16 head) -LS/vtec and B20/vtec -sleeper LS/VTec (ls crank and rods in a GSR) -Semi stock stroker b16 ( ls rods and crank w/ custom pistions with a higher wrist pin location) -high compression LS (Pr3, p30, p72, PCT pistions) Note: these are just some combos and all have the + and - to each...two key thing will seperate any engine combo from the other, THE BUILDER and THE TUNER... |
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