Why doesnt Toyota make its own motor for the FT-86??

[BoostJunkie]

Originally Posted by Dimman

I'm thinking this will allow for more aggressive (lean) AFR's safely, right?

You should go single with a quick spool valve, they are seeing kick ass numbers with it, here's a thread on it's performance
http://www.supraforums.com/forum/sho...d.php?t=597012

[Dimman]

Originally Posted by BoostJunkie

You should go single with a quick spool valve, they are seeing kick ass numbers with it, here's a thread on it's performance
http://www.supraforums.com/forum/sho...d.php?t=597012

Buddy's got one on a 7M pushing a GT35R with a custom billet compressor wheel. (Tekdeus on SF) It spools fast and pulls hard but I'm still partial to the words 'Twin Turbo'... I was thinking twin GT2560R's. I heard they can put down 10psi by 2800 on a stock 1JZGTE and 20-something psi by 3500ish.

[BoostJunkie]

Originally Posted by Dimman

Buddy's got one on a 7M pushing a GT35R with a custom billet compressor wheel. (Tekdeus on SF) It spools fast and pulls hard but I'm still partial to the words 'Twin Turbo'... I was thinking twin GT2560R's. I heard they can put down 10psi by 2800 on a stock 1JZGTE and 20-something psi by 3500ish.

Yeah but I'm not to familiar with the 1jz's block, how strong is it?

[Dimman]

Originally Posted by BoostJunkie

Yeah but I'm not to familiar with the 1jz's block, how strong is it?

Think same as a 2JZ with shorter rods so it revs better, but doesn't spool big turbos as well or put down low torque. Weak point stock is the rod bolts, same as the 2JZ. 500 whp without worrying about anything. Couple local guys are running 600 whp without problems (keeping in mind that a 1JZ will be either running more rpm or more boost for the same power as a 2JZ putting the same power down).

[BoostJunkie]

Originally Posted by Dimman

Think same as a 2JZ with shorter rods so it revs better, but doesn't spool big turbos as well or put down low torque. Weak point stock is the rod bolts, same as the 2JZ. 500 whp without worrying about anything. Couple local guys are running 600 whp without problems (keeping in mind that a 1JZ will be either running more rpm or more boost for the same power as a 2JZ putting the same power down).

Oh I see, is the exterior of the 1jz bottom end bigger, probably so, but if not just upgrade to a 2jz bottom end, then I'd have no worries, lol but seriously do u have a build thread?

[Matador]

Originally Posted by BoostJunkie

Oh I see, is the exterior of the 1jz bottom end bigger, probably so, but if not just upgrade to a 2jz bottom end, then I'd have no worries, lol but seriously do u have a build thread?

Think of the 1JZ as a smaller displacement 2JZ with parallel/single turbos and a slightly worse flowing head.

[BoostJunkie]

Originally Posted by MatadorRacing_F1

Think of the 1JZ as a smaller displacement 2JZ with parallel/single turbos and a slightly worse flowing head.

Ok, so relatively same size exterior? Or smaller?

[stevens8]

Originally Posted by Dixie Normous

Only problem I see with a NA 200ish hp is it will be like the f20/22c in the s2000. What I mean is it will be difficult to get extra power out of them (with out going forced induction) because the motor is already almost as good as it can get NA. You know what i mean?

No mention of k20 huh? The k20 comes stock at 200hp 2.0L and picks up crazy gains from just bolt on mods.

[Abflug]

why doesn´t Toyota put a Porsche engine in it?! hell of fun wouldn´t it?! j/k

[Abflug]

argh.. enough of that humor...

[Dimman]

Originally Posted by BoostJunkie

Ok, so relatively same size exterior? Or smaller?

Pretty much the same. I can pull the 1JZ out of my car and drop in a 2JZ, everything bolts up, transmission, mounts, etc... heads interchange, most of the stuff I may need to get replaced I can get from SC300 components.

For some reason there is a circle of thought out there that the 1JZ outflows the 2JZ, however every flowbench test shows that the 2JZ is about 10% better. There is a difference between the ports of the early twin turbo 1JZ and the later single turbo VVT-i 1JZ, and the myth may come from the newer 1JZs.

However I'm hoping the later VVT-i 2JZGE heads out-flow the early twin-turbo 2JZGTE heads. But it may not matter if I do (or get done) a porting job.

As for why not 2JZ bottom end? The 1JZ is pretty much just as strong, but there is more stress on it to make the same power because it is smaller. I'm only looking for a high 400 to low 500 to the wheels with a HIGH redline. The shorter stroke allows this with less stress on the rods and their bolts. And there is nothing like the sound of a high-revving 1JZ.

[ichitaka05]

400hp or so 1JZ are awesome. Here are some swapped 1JZ vids

[u2b]g60OaQnlzuY[/u2b]
[u2b]Bs6qD7Gt3qw[/u2b]

[Matador]

Originally Posted by Dimman

Pretty much the same. I can pull the 1JZ out of my car and drop in a 2JZ, everything bolts up, transmission, mounts, etc... heads interchange, most of the stuff I may need to get replaced I can get from SC300 components.

For some reason there is a circle of thought out there that the 1JZ outflows the 2JZ, however every flowbench test shows that the 2JZ is about 10% better. There is a difference between the ports of the early twin turbo 1JZ and the later single turbo VVT-i 1JZ, and the myth may come from the newer 1JZs.

However I'm hoping the later VVT-i 2JZGE heads out-flow the early twin-turbo 2JZGTE heads. But it may not matter if I do (or get done) a porting job.

As for why not 2JZ bottom end? The 1JZ is pretty much just as strong, but there is more stress on it to make the same power because it is smaller. I'm only looking for a high 400 to low 500 to the wheels with a HIGH redline. The shorter stroke allows this with less stress on the rods and their bolts. And there is nothing like the sound of a high-revving 1JZ.

[BoostJunkie]

Originally Posted by Dimman

Pretty much the same. I can pull the 1JZ out of my car and drop in a 2JZ, everything bolts up, transmission, mounts, etc... heads interchange, most of the stuff I may need to get replaced I can get from SC300 components.

For some reason there is a circle of thought out there that the 1JZ outflows the 2JZ, however every flowbench test shows that the 2JZ is about 10% better. There is a difference between the ports of the early twin turbo 1JZ and the later single turbo VVT-i 1JZ, and the myth may come from the newer 1JZs.

However I'm hoping the later VVT-i 2JZGE heads out-flow the early twin-turbo 2JZGTE heads. But it may not matter if I do (or get done) a porting job.

As for why not 2JZ bottom end? The 1JZ is pretty much just as strong, but there is more stress on it to make the same power because it is smaller. I'm only looking for a high 400 to low 500 to the wheels with a HIGH redline. The shorter stroke allows this with less stress on the rods and their bolts. And there is nothing like the sound of a high-revving 1JZ.

I'd def go with the porting on a 2jz-gte head, either way, I know I love my I-vetc on the civic and with tuning you could change the rpm in which it kicked in, and once I turbo'd it and the I-vtec was fixed it was like an extra 30-40 whp after 5400 it was pretty cool