Search results

All good information thanks a lot I'd rather research this to death now than get burned later. Sometimes I get tired of going first. :) Very lost I will check with him, I didnt know tha tthe 2jz had vvt Thanks.

So are you saying that you know for a fact that it has to be dealt with by using some sort of aftermarket computer setup? I was hoping that we could just ignore it and let the OEM computer continue to do its thing as far as it pertains to VVTI

Well I can tell you for me, it was a case of not being satisfied with what the RMM kit could deliver. It really is limited to about 5-7 pounds of boost and then the belt starts slipping this was occurnign even with cogged pulleys. I got up to 389hp with the RMM kit, that was great for a while...

Well I guess I better figure out if the VVT is going to be an issue or not, its not one of those things I want to find out after the money is spent and the engine is built. :) I have succefully run 10 psi with a supercharger and no issues but I would want to go a good bit higher with a turbo and...

Well I figure a set of those 8.5:1 pistons will solve the compression issue. Hopefully the tuning thing wont be too much of an issue give a good piggyback computer.

The question here is when going FI (turbo) with 1uz with VVT is there anything you need to consider differently than if you were doing it with a NON VVT engine.

Lex that is a heck of a map, I am assuming that you have to spend a lot of time on the Dyno to set that up in the computer, it sounds like an expensive undertaking. Do you set up the map at every 1000rpms and then the computer fills in the rest or do you have to test and adjust the settings for...

okayy followup question. do you just set the boost at X and then adjust the timing based upon that boost setting or do change both timing and boost trying to get more and more hp.

Thanks that answers my question nicely.

so if we are tuning, how do you know to take out more or less timing, what do you use as an indicator? Lets say you start at 1 degree per psi, we know we can get more power if we reduce the amount of retard. Well if we are in deed tuning then we want to reduce the amount of timing that was taken...

How many miles on the engine? I have 235,000 miles on mine. Even though the leakdown and compression tests are all good I am a bit nervous about running 15psi on the stock internal engine, what are your thoughts? if 15PSI is safe for stock internals then what would you feel is a safe level...

So am I correct in understanding that there is no way to measure the need to add a device that will retard timing. You simply use a rule of thumb from .25 degree to 1 degree of retard per PSI of boost. If this is the case what is everyone using to retard timing, I have only seen the split second...

Hi folks I was hoping someone could help me understand if, when and how you know you need to adjust the timing in an FI engine. I am talking 1uzfe here, I have succesfully run 10psi on the engine with just an SAFC2 and larger injectors. Thta was with a Supercharger, now I am moving to a Turbo...

So in your experience is 12- 15psi safe as a daily driver. I have been supercharged at 7-10 PSI and am now going turbo, I was going to limit theh boost to 10 pounds but now I am wondering if 12 or 15 is just as safe? By the way the engine has 230K on it now compression and leakdown tests are...

Yes I saw that but my guess is that the car isnt going to run for 100K miles at 22psi. I'm interested in a safe boost level that will go 100K or more.

I have a question here, the post assumes a boost level of 12-14 PSI, I am about to turbo my 1UZ, I had been running a SC at 8-10 lbs, but couldnt get anymore boost out of it and other issues. So I am wondering based upon the premise of this poll is it safe to run 12-14 or even higher boost on a...