ls pistons/itr cams clearance issues??
08-20-2008, 05:42 PM
#1
B*a*n*n*e*d
Thread Starter
Join Date: Aug 2007
Location: chicago, IL, umited states
Posts: 1,155
Likes: 0
Received 0 Likes
on
0 Posts
ls pistons/itr cams clearance issues??
over the winter i am planning on building a b16 for boost on oem parts.
my build for the motor is as follows
ls pistons with new rings
itr cams
low compression head gasket
rebuilding head
3 angle valve job.
someone told me that i will have clearance issues, is that true??
should i just stick with b16 cams?
my build for the motor is as follows
ls pistons with new rings
itr cams
low compression head gasket
rebuilding head
3 angle valve job.
someone told me that i will have clearance issues, is that true??
should i just stick with b16 cams?
08-21-2008, 08:02 AM
#4
B*a*n*n*e*d
Thread Starter
Join Date: Aug 2007
Location: chicago, IL, umited states
Posts: 1,155
Likes: 0
Received 0 Likes
on
0 Posts
i guess i will stick with b16 cams. i dont want after market pistons because i want to have a good setup on oem parts.
BTW why would i have clearance issues if the parts are oem??
Modified by umair at 9:07 AM 8/21/2008
BTW why would i have clearance issues if the parts are oem??
Modified by umair at 9:07 AM 8/21/2008
Trending Topics
08-22-2008, 10:20 AM
#10
Honda-Tech Member
Join Date: Jul 2008
Location: Hampstead, md, United States
Posts: 71
Likes: 0
Received 0 Likes
on
0 Posts
Re: (umair)
Only thing you can do is check the spec on both and then compare cause I am doing an ls/vtec right now http://www.freewebs.com/vteclseater so I am kinda in the same boat.
08-22-2008, 10:54 AM
#11
Honda-Tech Member
Join Date: May 2008
Location: Pasadena/MPK 626,CA
Posts: 450
Likes: 0
Received 0 Likes
on
0 Posts
Re: ls pistons/itr cams clearance issues?? (umair)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by umair »</TD></TR><TR><TD CLASS="quote">over the winter i am planning on building a b16 for boost on oem parts.
my build for the motor is as follows
ls pistons with new rings
itr cams
low compression head gasket
rebuilding head
3 angle valve job.
someone told me that i will have clearance issues, is that true??
should i just stick with b16 cams?
</TD></TR></TABLE>
The Piston-to-Deck Height with b16a head and block with pr4's and stock head gasket is 0.022
And most stock lsv setups are at 0.013
(I could be off on my numbers)
my build for the motor is as follows
ls pistons with new rings
itr cams
low compression head gasket
rebuilding head
3 angle valve job.
someone told me that i will have clearance issues, is that true??
should i just stick with b16 cams?
</TD></TR></TABLE>
The Piston-to-Deck Height with b16a head and block with pr4's and stock head gasket is 0.022
And most stock lsv setups are at 0.013
(I could be off on my numbers)
08-22-2008, 11:10 AM
#12
B*a*n*n*e*d
Thread Starter
Join Date: Aug 2007
Location: chicago, IL, umited states
Posts: 1,155
Likes: 0
Received 0 Likes
on
0 Posts
Re: ls pistons/itr cams clearance issues?? (thatblkguy)
so are you trying to say they are going to hit because they stick out more? sorry about the dumb question, lol.
08-22-2008, 11:13 AM
#13
Honda-Tech Member
Join Date: Aug 2006
Location: Wilmington, NC
Posts: 1,780
Likes: 0
Received 0 Likes
on
0 Posts
Re: (umair)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by umair »</TD></TR><TR><TD CLASS="quote">i heard that the pistons will hit the valves but i was not sure if it was true since i am going to be using oem parts. </TD></TR></TABLE>
Talk to blinx he had the same setup and ran it for a while. When he pulled the head the pistons were mashed in at the reliefs a little due to the valves hitting (I assume when vtec was engaged). He said it ran great and even recommended the same for myself, that was until he realized the valves were hitting.
Talk to blinx he had the same setup and ran it for a while. When he pulled the head the pistons were mashed in at the reliefs a little due to the valves hitting (I assume when vtec was engaged). He said it ran great and even recommended the same for myself, that was until he realized the valves were hitting.
08-22-2008, 11:21 AM
#14
B*a*n*n*e*d
Thread Starter
Join Date: Aug 2007
Location: chicago, IL, umited states
Posts: 1,155
Likes: 0
Received 0 Likes
on
0 Posts
i will message him. i guess i will just stick with b16 cams and get a low compression head gasket. that should prevent the valves from hitting.
what is his user name?>
what is his user name?>
08-22-2008, 12:13 PM
#15
Honda-Tech Member
Join Date: Jul 2008
Location: Hampstead, md, United States
Posts: 71
Likes: 0
Received 0 Likes
on
0 Posts
Re: (umair)
Or instead you could use P72 GSR pistons cause they have more valve relief, but you will have a slightly higher compression like around 10:1 but I dunno thats wat I am gonna do most likely and on nopi there is a rebuild kit with the pistons for $381 around or about http://www.nopionline.com/nopi...vt=0
08-22-2008, 12:23 PM
#17
Honda-Tech Member
Join Date: Jul 2008
Location: Hampstead, md, United States
Posts: 71
Likes: 0
Received 0 Likes
on
0 Posts
Re: (Sr420Det)
Ok here it is GSR P72 (C.R 10.6:1 ) / SI P30 (C.R 11.2:1) for pistons. so although similar not a direct match.
Modified by VtecLsEater at 1:41 PM 8/22/2008
Modified by VtecLsEater at 1:41 PM 8/22/2008
08-23-2008, 11:29 AM
#20
Honda-Tech Member
Join Date: Nov 2007
Location: NC, United States
Posts: 173
Likes: 0
Received 0 Likes
on
0 Posts
Re: (Sr420Det)
Been there done that! I does work but you have to dial in some funky *** cam timing in order for the valves not to hit. Which defeats the piont of the upgrade cause you will be losing power in the cam timing. The reason is stock LS pistons valve reliefs are not designed for highlift/duration cams. I piston upgrade will solve the problem.
08-23-2008, 02:09 PM
#21
Honda-Tech Member
Join Date: Jul 2008
Location: Hampstead, md, United States
Posts: 71
Likes: 0
Received 0 Likes
on
0 Posts
Re: (steven_highet)
Well thats kinda what I have been saying thats why I suggested using the P72 pistons. However I am running into some complications so to speak with other forum members so don't take that advice yet but I will find out for ya and myself.
Modified by VtecLsEater at 3:18 PM 8/23/2008
Modified by VtecLsEater at 3:18 PM 8/23/2008
08-28-2008, 05:47 PM
#22
Honda-Tech Member
Join Date: Aug 2006
Location: Wilmington, NC
Posts: 1,780
Likes: 0
Received 0 Likes
on
0 Posts
https://honda-tech.com/zero...age=2
So Id imagine that it might be ok with b16 cams. Earlier when I read this thread I wasnt thinking straight or I would of done it, this sounds like a perfect stock turbo setup. Do you guys think a b16 cam wouldnt of hit on blinx's setup what about gsr cams do you think they would hit?
So Id imagine that it might be ok with b16 cams. Earlier when I read this thread I wasnt thinking straight or I would of done it, this sounds like a perfect stock turbo setup. Do you guys think a b16 cam wouldnt of hit on blinx's setup what about gsr cams do you think they would hit?
08-29-2008, 09:50 AM
#24
Honda-Tech Member
Join Date: Jul 2008
Location: Hampstead, md, United States
Posts: 71
Likes: 0
Received 0 Likes
on
0 Posts
Re: (Sr420Det)
Durrrrr damn I feel dumb lol, theres also those vtec killer cams that run through out the power range maybe look into that. I dunno