TTE vs. TRD Headgasket

canadam · 12-11-2006, 02:03 PM

I see ATS supplies the TTE gasket, what are its advantages over the TRD gasket, and is its use overkill in a more or less stock build ?

kblake · 12-11-2006, 04:46 PM

The stock head gasket is 1.0mm, the TRD is .8mm, and the TTe that we stock and sell is 1.2mm.

If you are having your mating surfaces machined, they are removing some material from both surfaces. Running the TRD would increase static compression and change combustion chamber geometry, making the engine more prone to detonation.

The TTe, being .2mm thicker than stock, replaces the thickness that was removed from the mating surfaces, restoring you to the proper deck height, with no change in compression.

If you are installing forged pistons during your rebuild I would recommend the TTe head gasket, along with a set of ARP head studs.

Best regards,

Ken

12-11-2006, 02:03 PM	#1 (permalink)
canadam MidshipExpress Join Date: Feb 2005 Location: Beautiful British Columbia Posts: 9,786 Thanks: 118 Thanked 136 Times in 116 Posts My Google Map iTrader Rating: (29/100% )	TTE vs. TRD Headgasket I see ATS supplies the TTE gasket, what are its advantages over the TRD gasket, and is its use overkill in a more or less stock build ? __________________

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

12-11-2006, 04:46 PM	#2 (permalink)
kblake MR2 Parts Expert Join Date: Feb 2005 Location: Portland, Oregon Posts: 812 Thanks: 14 Thanked 46 Times in 36 Posts iTrader Rating: (1/100% )	The stock head gasket is 1.0mm, the TRD is .8mm, and the TTe that we stock and sell is 1.2mm. If you are having your mating surfaces machined, they are removing some material from both surfaces. Running the TRD would increase static compression and change combustion chamber geometry, making the engine more prone to detonation. The TTe, being .2mm thicker than stock, replaces the thickness that was removed from the mating surfaces, restoring you to the proper deck height, with no change in compression. If you are installing forged pistons during your rebuild I would recommend the TTe head gasket, along with a set of ARP head studs. Best regards, Ken