checking out an 86 mk3 tomorrow

cre · 12-04-2009, 03:07 AM

Okay, then I would talk to them about having the turbo's oil drain location drilled in the block; on the N/A it's not drilled. Draining to the oil pan, as most people do, isn't the best way to do it... it works if you get the drain in precisely the right location, but since they're already at work on it. The oil supply isn't a big deal.

How you proceed from here is really up to you. If you want to take the time and convert it to a N/A-T then go for it; It is fun.

If you're building for it you can build it reliably... lower the compression ratio, drill the stock oil drain location, flush the block so that you're sure the oil supply passage for the turbo is free of obstruction, upgrade to GTE injectors or better, add a good fuel controller and get a good safe tune running. Just take your time and you can definitely build a very reliable N/A-T. I'd start with the engine itself and then worry about upgrades a bit at a time. You will lose power going to a lower compression before you add the turbo, but that's alright... The turbo is the last thing you'll add, BTW.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Lower Ball Joints - Checking here first	Grandavi	MKIII Supra	3	09-20-2008 04:04 AM
Picking up my 89 tomorrow	8uwav6	Show n Tell	2	03-31-2008 08:08 PM
Checking Thermostat	scruffboy	Non-Generation Specific Questions	6	03-09-2006 05:49 PM
Supra Noob checking in from Florida	PalmCoastMk3	Non-Generation Specific Questions	1	12-23-2005 05:08 PM
Supra Newb Just checking in	Razor	Non-Generation Specific Questions	1	12-21-2005 04:15 AM

12-04-2009, 03:07 AM	#31
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Okay, then I would talk to them about having the turbo's oil drain location drilled in the block; on the N/A it's not drilled. Draining to the oil pan, as most people do, isn't the best way to do it... it works if you get the drain in precisely the right location, but since they're already at work on it. The oil supply isn't a big deal. How you proceed from here is really up to you. If you want to take the time and convert it to a N/A-T then go for it; It is fun. If you're building for it you can build it reliably... lower the compression ratio, drill the stock oil drain location, flush the block so that you're sure the oil supply passage for the turbo is free of obstruction, upgrade to GTE injectors or better, add a good fuel controller and get a good safe tune running. Just take your time and you can definitely build a very reliable N/A-T. I'd start with the engine itself and then worry about upgrades a bit at a time. You will lose power going to a lower compression before you add the turbo, but that's alright... The turbo is the last thing you'll add, BTW.