Maximum to shave off the head - Page 2

btwilson86 · 06-25-2013, 06:47 AM

You're right, you probably can't return it, so you'll have to eat the cost and buy an appropriate sized gasket. From what I've read, these engines are quite picky about combustion chamber size, so if you run your current gasket you're setting yourself up for failure.

You have opinions/experiences from knowledgeable Supra community members (see thread referenced earlier), and they're saying the build you're proposing is far from ideal. To me, it's a no-brainer; spend the couple hundred bucks now so you don't have to spend the couple thousand later.

icey756 · 06-26-2013, 06:03 PM

Alright so I have .4318mm off the head, .1524mm off the block. Stock gasket is 1.37mm. So adding that up the gasket would have to be 1.9542mm. You really think I can't get away with a 1.4mm MHG? Just clarifying here cause a 2.0mm MHG would roughly be another 185 bucks. Then I have a 1.4mm gasket laying around.

cre · 06-27-2013, 04:48 AM

Custom order a .6mm shim? Don't know who has one available for the 7M. Otherwise you may be able to get at least half of the money on the 1.4 by selling it used.

06-25-2013, 06:47 AM	#11
btwilson86 Super Moderator Join Date: May 2007 Location: Billings, Montana Posts: 1,034	You're right, you probably can't return it, so you'll have to eat the cost and buy an appropriate sized gasket. From what I've read, these engines are quite picky about combustion chamber size, so if you run your current gasket you're setting yourself up for failure. You have opinions/experiences from knowledgeable Supra community members (see thread referenced earlier), and they're saying the build you're proposing is far from ideal. To me, it's a no-brainer; spend the couple hundred bucks now so you don't have to spend the couple thousand later. __________________ 1989 7MGTE R154 Targa Top White Package w/Blue Interior Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels

06-26-2013, 06:03 PM	#12
icey756 3" Exhaust Join Date: Jun 2011 Location: Wisconsin Posts: 177	Alright so I have .4318mm off the head, .1524mm off the block. Stock gasket is 1.37mm. So adding that up the gasket would have to be 1.9542mm. You really think I can't get away with a 1.4mm MHG? Just clarifying here cause a 2.0mm MHG would roughly be another 185 bucks. Then I have a 1.4mm gasket laying around. __________________ 1988 7M-GTE Manual Turbo, Godspeed IC, Stock HG Torque to 90FP W/ Arp bolts, Silicon water hose kit, silicon vacuum hoses, Godspeed radiator, 2 12" electric fans.

06-27-2013, 04:48 AM	#13
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Custom order a .6mm shim? Don't know who has one available for the 7M. Otherwise you may be able to get at least half of the money on the 1.4 by selling it used. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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