GSR Build - Piston to valve clearance?

paopao · 01-09-2006, 06:15 PM

I did some research, and I know that to ultimately find the correct clearances I'm going to have to clay the motor. But before I do that, I was just wondering if +/-2 degrees on the cam gears is enough to play with?

The setup is as follows:

B18C1
Head milled .030
Blox Type B's - Valve lash .008-in. .009-ex.
PR3 pistons
Stock headgasket

What kind of numbers am I supposed to be aiming for as well? I believe I read that .060 is the minimum clearance? I'd appreciate any help at all.

Modified by paopao at 4:46 PM 1/12/2006

B18 CYA · 01-09-2006, 06:24 PM

also wondering in my build, got 13.5:1cr and 1mm oversize valves, and spec c cams....if anyone knows help me and this fellow out!

also how many * would be safe on the cams?

paopao · 01-09-2006, 06:33 PM

Yeah, help out the guys who are too lazy to clay their motors.

paopao · 01-09-2006, 07:34 PM

No one has any input? I have to put this motor together on Wednesday!

B18 CYA · 01-09-2006, 07:42 PM

Quote:

Originally Posted by paopao

Yeah, help out the guys who are too lazy to clay their motors.

werd

Used2beAb16 · 01-09-2006, 08:48 PM

No one is gonna say because they wont want to be responsible for giving the ok and then u scattering the thing.

paopao · 01-09-2006, 08:53 PM

I was just wondering if +/-2 degrees is enough of an adjustment range.

paopao · 01-11-2006, 01:16 AM

Well, I'm gonna clay the motor tommorow using +/- 4 degrees for adjustment. I don't think the gears will be turned anymore than that when it gets tuned this weekend. I'll be sure to post up the results tommorow night.

2k.civic.si · 01-11-2006, 02:01 AM

what we need to do is start a list of people who have clayed motors...have them list out there motor specs and any machiene work...and list out the clearances they find from claying...if we got enough data we could start to see what kind of clearance we have in other similar setups

paopao · 01-12-2006, 01:45 PM

Finally finished claying the motor. Results were as follows:

Quench pads - .050
Intake valves - .050
Exhaust valves - .050

This was with the cam gears set at -5 degrees on the exhaust, and +5 on the intake.

I was surprised that the values were the same for everything, but that's how it came out. Setup is listed above, hope this will be able to help some people with similar setups.

B18 CYA · 01-12-2006, 07:47 PM

do it again with the cams at different degrees!

paopao · 01-12-2006, 08:32 PM

Why? I don't think I'm gonna have to adjust the gears past +/- 3 degrees, and I have enough clearance at 5 degrees.

hiboost21psi · 03-31-2006, 08:32 PM

are the blox type bs simalar to crower stage 3s??? i have about the same set up but my head was only milled .020.. im going to clay the motor this weekend and i was wondering if i should look for simalar numbers?? .050???

01-09-2006, 06:15 PM	#1
paopao Honda-Tech Member 1991 Honda CRX My Garage Join Date: May 2003 Location: Around Town, TX Posts: 2,805 iTrader Rating: (0)	GSR Build - Piston to valve clearance? I did some research, and I know that to ultimately find the correct clearances I'm going to have to clay the motor. But before I do that, I was just wondering if +/-2 degrees on the cam gears is enough to play with? The setup is as follows: B18C1 Head milled .030 Blox Type B's - Valve lash .008-in. .009-ex. PR3 pistons Stock headgasket What kind of numbers am I supposed to be aiming for as well? I believe I read that .060 is the minimum clearance? I'd appreciate any help at all. Modified by paopao at 4:46 PM 1/12/2006 __________________ Just another Honda enthusiast in TX

01-09-2006, 06:24 PM	#2
B18 CYA Member Garage is empty, add now Join Date: Nov 2003 Location: Nowhere, in, Canada Posts: 2,325 iTrader Rating: (0)	also wondering in my build, got 13.5:1cr and 1mm oversize valves, and spec c cams....if anyone knows help me and this fellow out! also how many * would be safe on the cams? __________________ 1990 Civic Hatch: 424whp / 299 ft lbs tq @ 21psi 11.3 @ 128 mph New project in the works for '07 http://images.honda-tech.com/set1/smile/emsmile.gif Bought from: NA-Cutie http://images.honda-tech.com/set1/smile/emthdown.gif http://images.honda-tech.com/set1/smile/emthdown.gif , kadburry, Terry@Boostfed.com, Titan Motorsports, Precision, C8V6C http://images.honda-tech.com/set1/smile/emthup.gif , EGJDM, prostreetonline, ben@importparts, explicitspeed360 Sold to: jnasty1845, sleeprhatch http://images.honda-tech.com/set1/smile/emthup.gif , See Are Ex

01-09-2006, 06:33 PM	#3
paopao Honda-Tech Member 1991 Honda CRX My Garage Join Date: May 2003 Location: Around Town, TX Posts: 2,805 iTrader Rating: (0)	Re: (B18 CYA) Yeah, help out the guys who are too lazy to clay their motors. __________________ Just another Honda enthusiast in TX

01-09-2006, 07:34 PM	#4
paopao Honda-Tech Member 1991 Honda CRX My Garage Join Date: May 2003 Location: Around Town, TX Posts: 2,805 iTrader Rating: (0)	Re: GSR Build - Piston to valve clearance? (paopao) No one has any input? I have to put this motor together on Wednesday! __________________ Just another Honda enthusiast in TX

01-09-2006, 08:48 PM	#6
Used2beAb16 Honda-Tech Member Garage is empty, add now Join Date: Jul 2003 Location: western, PA Posts: 1,837 iTrader Rating: (0)	Re: (B18 CYA) No one is gonna say because they wont want to be responsible for giving the ok and then u scattering the thing. __________________ I built my hotrod, did you?

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01-09-2006, 08:53 PM	#7
paopao Honda-Tech Member 1991 Honda CRX My Garage Join Date: May 2003 Location: Around Town, TX Posts: 2,805 iTrader Rating: (0)	Re: (Used2beAb16) I was just wondering if +/-2 degrees is enough of an adjustment range. __________________ Just another Honda enthusiast in TX

01-11-2006, 01:16 AM	#8
paopao Honda-Tech Member 1991 Honda CRX My Garage Join Date: May 2003 Location: Around Town, TX Posts: 2,805 iTrader Rating: (0)	Re: GSR Build - Piston to valve clearance? (paopao) Well, I'm gonna clay the motor tommorow using +/- 4 degrees for adjustment. I don't think the gears will be turned anymore than that when it gets tuned this weekend. I'll be sure to post up the results tommorow night. __________________ Just another Honda enthusiast in TX

01-11-2006, 02:01 AM	#9
2k.civic.si Honda-Tech Member Garage is empty, add now Join Date: Jun 2004 Location: los banos, ca Posts: 3,895 iTrader Rating: (0)	Re: GSR Build - Piston to valve clearance? (paopao) what we need to do is start a list of people who have clayed motors...have them list out there motor specs and any machiene work...and list out the clearances they find from claying...if we got enough data we could start to see what kind of clearance we have in other similar setups __________________ EFI University Certified Advanced Tuner http://www.artietuned.com Ecu chipping,Street/Dyno tuning,Crome Pro/Gold,AEM,FAST,Motec, and more. www.westcoastnationals.org

01-12-2006, 01:45 PM	#10
paopao Honda-Tech Member 1991 Honda CRX My Garage Join Date: May 2003 Location: Around Town, TX Posts: 2,805 iTrader Rating: (0)	Re: GSR Build - Piston to valve clearance? (paopao) Finally finished claying the motor. Results were as follows: Quench pads - .050 Intake valves - .050 Exhaust valves - .050 This was with the cam gears set at -5 degrees on the exhaust, and +5 on the intake. I was surprised that the values were the same for everything, but that's how it came out. Setup is listed above, hope this will be able to help some people with similar setups. __________________ Just another Honda enthusiast in TX

01-12-2006, 07:47 PM	#11
B18 CYA Member Garage is empty, add now Join Date: Nov 2003 Location: Nowhere, in, Canada Posts: 2,325 iTrader Rating: (0)	do it again with the cams at different degrees! __________________ 1990 Civic Hatch: 424whp / 299 ft lbs tq @ 21psi 11.3 @ 128 mph New project in the works for '07 http://images.honda-tech.com/set1/smile/emsmile.gif Bought from: NA-Cutie http://images.honda-tech.com/set1/smile/emthdown.gif http://images.honda-tech.com/set1/smile/emthdown.gif , kadburry, Terry@Boostfed.com, Titan Motorsports, Precision, C8V6C http://images.honda-tech.com/set1/smile/emthup.gif , EGJDM, prostreetonline, ben@importparts, explicitspeed360 Sold to: jnasty1845, sleeprhatch http://images.honda-tech.com/set1/smile/emthup.gif , See Are Ex

01-12-2006, 08:32 PM	#12
paopao Honda-Tech Member 1991 Honda CRX My Garage Join Date: May 2003 Location: Around Town, TX Posts: 2,805 iTrader Rating: (0)	Re: (B18 CYA) Why? I don't think I'm gonna have to adjust the gears past +/- 3 degrees, and I have enough clearance at 5 degrees. __________________ Just another Honda enthusiast in TX

03-31-2006, 08:32 PM	#13
hiboost21psi Garage is empty, add now Join Date: Jan 2006 Location: charlottesville, va, usa Posts: 10 iTrader Rating: (0)	Re: GSR Build - Piston to valve clearance? (paopao) are the blox type bs simalar to crower stage 3s??? i have about the same set up but my head was only milled .020.. im going to clay the motor this weekend and i was wondering if i should look for simalar numbers?? .050???

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GSR Build - Piston to valve clearance?