P.R.E. 82X89 LSV dyno
10-01-2012, 09:38 PM
#28
Re: P.R.E. 82X89 LSV dyno
my v2v clearance already saw and I have many options to move my cams, but I dont have a dyno available to find where my cams can give all of them i just have wideband and hondata s300! My building is very similar to this exept i have a stock bore and gsr head"STOCK PORTS"-ls crank 81X89 , PRO2 + WHIT PRO SERIES CAM GEARS, PERFORMER X,BDL 70MM TB, RC310, CP 12.8:1, EAGLE RODS,FULL VALVE TRAIN SUPERTECH WHIT FLAT FACE VALVES, PRO-FAB HEADER,255 WALBRO ON 91 PUMP GAS ... ETC ... I WAS guide me in this building and I see that I HAVE EQUALLY opportunity to obtain good results as well .. I think moving my cams in the right spot will get ALL OF THEM!
10-02-2012, 04:00 AM
#29
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Re: P.R.E. 82X89 LSV dyno
Gotta feed the greed for more power naturally aspirated lol
04-06-2013, 05:44 PM
#32
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Re: P.R.E. 82X89 LSV dyno
such a simple build.
Thread is a bit old but i dont care and i know you are still around. The above is an interesting question i was wondering as well.
The other thing i was wondering is what was the valve seat pressure on the rocket springs? And what valves were you using in conjunction with them?
Thread is a bit old but i dont care and i know you are still around. The above is an interesting question i was wondering as well.
The other thing i was wondering is what was the valve seat pressure on the rocket springs? And what valves were you using in conjunction with them?
06-12-2013, 03:32 AM
#36
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06-12-2013, 10:01 AM
#37
Re: P.R.E. 82X89 LSV dyno
such a simple build.
Thread is a bit old but i dont care and i know you are still around. The above is an interesting question i was wondering as well.
The other thing i was wondering is what was the valve seat pressure on the rocket springs? And what valves were you using in conjunction with them?
Thread is a bit old but i dont care and i know you are still around. The above is an interesting question i was wondering as well.
The other thing i was wondering is what was the valve seat pressure on the rocket springs? And what valves were you using in conjunction with them?
Rocket SLs have ~55lbs on the seat (1.320" install height). See chart below for more info.
SL springs are made in U.S.A. using Japanese valve-spring wire--baller springs. G2 were from Taiwan, not even in the same league
as the SLs and current US-wound lineup.
06-14-2013, 02:09 PM
#39
Re: P.R.E. 82X89 LSV dyno
Those be the SLs. Note the "polished," shiny appearance of the surface. It's actually a highly refined, shoot-peened surface using smaller steel-shot than other manufacturers including OEMs. Just a little detail shared here. Credit goes to the spring engineer I work with.
06-14-2013, 04:47 PM
#40
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Re: P.R.E. 82X89 LSV dyno
I still have a set of SL springs in storage they work with OEM retainer correct me if i'm wrong Rocket,I have a ITR head that is going on a friends LS/Vtec bottomend much like this one of Slowsleeper's but this one will be using a set of the Edelbrock cams from IPG I would like to stick the SL springs in before it goes on the engine for a little insurance.
06-14-2013, 05:00 PM
#41
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Re: P.R.E. 82X89 LSV dyno
ii dont think you will need much spring for those cams, they seem to be around the size of itrs, sent them to ddtech to get measured though so we will find out in a few weeks
06-15-2013, 06:42 AM
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Re: P.R.E. 82X89 LSV dyno
I still have a set of SL springs in storage they work with OEM retainer correct me if i'm wrong Rocket,I have a ITR head that is going on a friends LS/Vtec bottomend much like this one of Slowsleeper's but this one will be using a set of the Edelbrock cams from IPG I would like to stick the SL springs in before it goes on the engine for a little insurance.
correct they work with any oem bvtec seat/retainer.
pic on left is gsr spring & retainer.
pic of right is RMS SL spring on Kseries retainer (02 types... should be $48-55 for all 16)
06-19-2013, 06:07 AM
#45
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Re: P.R.E. 82X89 LSV dyno
The engine's running stock OEM valves, keepers, with OEM K-series retainers.
We haven't yet, but I'd say the K should be faster given the displacement, torque, and 6 speed trans.
We haven't yet, but I'd say the K should be faster given the displacement, torque, and 6 speed trans.
06-19-2013, 12:31 PM
#47
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Re: P.R.E. 82X89 LSV dyno
FWIW, this thing is my brother's daily driver, spring, summer, fall, winter. Going strong for 3 years now with numerous trips over 9500+ rpms on this engine.
06-19-2013, 02:46 PM
#48
Re: P.R.E. 82X89 LSV dyno
Cast pistons should be longer-wearing.
Forged pistons are made of a softer material, which makes them more shock-resistant (less brittle), but this comes at a cost. The cost is that the forged piston, according to my hardness hypothesis, will wear faster due be less abrasion resistance, embeddability of dirt, and lower lubricity.
Omni's B16 project and this motor shows how nicely cast pistons work when made to sing in a potent combo of good headprep, cyl. hone, cam and intake manifold selection, cam degreeing, and tuning.
Forged pistons are made of a softer material, which makes them more shock-resistant (less brittle), but this comes at a cost. The cost is that the forged piston, according to my hardness hypothesis, will wear faster due be less abrasion resistance, embeddability of dirt, and lower lubricity.
Omni's B16 project and this motor shows how nicely cast pistons work when made to sing in a potent combo of good headprep, cyl. hone, cam and intake manifold selection, cam degreeing, and tuning.
06-19-2013, 06:04 PM
#49
Honda-Tech Member
Re: P.R.E. 82X89 LSV dyno
We have always used 0.003" clearance with Supertech pistons in both our road race and road/trackday style engines they are all bored and honed using a deck plate.
