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Td42 v td42t precomp chambers
Posted: Wed Jan 05, 2011 12:07 pm
by gnu
Hi I asked this on the patrol forum but I'll try my luck here. Can you safely use td42t chambers in a td42 head as they are bigger, it has a aftermarket turbo fitted, cheers
Re: Td42 v td42t precomp chambers
Posted: Thu Jan 06, 2011 9:36 pm
by PGS 4WD
I thought they were same same? How are they bigger? If they are deeper/longer then that is normal as the machinist will surface them to the correct height.
Re: Td42 v td42t precomp chambers
Posted: Fri Jan 07, 2011 6:32 am
by gnu
They have a fair bit bigger mouth opening, i've decided i'm gonna run them from the info i've gathered on the patrol4x4.com
cheers
Re: Td42 v td42t precomp chambers
Posted: Fri Jan 07, 2011 8:28 pm
by PGS 4WD
They have a tendency to crack, the larger outlet may reduce the heat retained in the chamber and help with the cracking.
Re: Td42 v td42t precomp chambers
Posted: Fri Jan 07, 2011 10:15 pm
by UGOTNUFN
They are a lot different,hence why people turboing N/a motors always say they are cracked when they pull the head off.
Soooooo many people make this mistake when building a big engine from a N/A package
Re: Td42 v td42t precomp chambers
Posted: Sat Jan 08, 2011 7:29 am
by tweak'e
if your going to only lightly turbo it then the smaller ones can help with low down power and fuel economy.
i suggest have a hunt around, most likely there is a range of different sizes that can fit. i know a few Toyota guys that experimented with different sized ones with some good success.