THansenite

I am going to be installing my turbo in the next month or so and am going to be running around 7psi. What sort of numbers should I expect from my oil pressure and exhaust gas temperature gauges? I know the EGT will change as I add fuel or lean out the mixture. What is safe, what isn't?

deathbyc4

EGR are going to be highly variable depending on the outside temp, rpm, afr, and location of the sensor. for instance, my sensor is near the second 02 sensor on the s-pipe. i run anywhere from just above 400 at idle to 1200 degrees when racing. but your's may be higher than 1200 since mine dumps fuel. I have no idea on the oil pressure as i dont have that on my car, i just have afr boost and egt.

Mr_Meaty

I have OP and not EGT, so I'll answer that part!

OP will also very depending on throttle, but mine at startup is around 50, after it's good and warmed up, idle with come down to 9-11 or so, cruizing is around 45, acceleratiging can go up to 65 and I think the highest it ever got at full boost was 90.

THansenite

Thanks guys. I am just curious what to expect once I get everything hooked up.

BuddhasTC

with the EGT u can run as high as 1500 degrees while driving...but anything after that/higher, is getting a little scary and not normal

Ace83

iTrader: (6)

meaty arent those numbers pretty high?

Mr_Meaty

um...I hope not! there was a thread before about it and they all said about the same readings.
Why? What are yours at?

java09

the highest ive seen mine is like 70 maybe 80.. i dont think ive ever seen 90 but then again i do tend to look at my boost/afr gauges more often.

Mr_Meaty

Yeah, I had an oil leak, so I was checking it quit often. and when I say 90, that was max, not very often
Usually 65-80

java09

teah id say thats more right around mine!

20tCDude05

400 at IDLE?! Wow, I think mine goes to 600, maybe 500. Yea, my oil gauge was fluttering for some reason, so I changed into a thicker oil and it was fine. It's usually 60 PSI for cruising and 80 full throttle if I remember correctly. I go high as 1200 degrees for the EGT when smoking Civics.

deathbyc4

i have a race manifold, so the heat doesnt stay in the pipe long. and heat wrapped downpipe. pic on profile.

Ace83

iTrader: (6)

I just read in garrett website that oil pressure going to the turbo should only be 40-45 psi, going beyond that will require you to have an oil restrictor or else it will cause the seals to break.. thats in the case of ballbearing turbochargers since most engine produces more oil pressure than what is required by ballbearing turbos.. journal bearing turbos i think can handle more pressure.

any thoughts?

Mr_Meaty

I don't have a ballbearing turbo...and tCs tend to have higher oil pressure.
I've read something about oil restrictors as well, but I was under the assumption that we did not need them on our cars, for whatever reason.

But Turbo Toyotas and Dezod have been in the turbo business for some time, and I'm sure if our turbo systems needed oil restrictors, they would be included in the kit.
Their not gonna sell a kit that will break the seals on our turbos, because they would have to replace them.

Ace83

iTrader: (6)

dont you have the disco potato phil or you have the t3 t4.. im just wondering what the ideal oil pressure is. If the pressure everyone is having is quite high then they must have done a good job on the turbo seals. There has been quite few complaints of turbonetics turbo breaking im thinking it must be the oil pressure or their sealarent just that good

Mr_Meaty

no potatoe here. I got the Garrett T3/T04e 54trim .63ar. I did not get the GT kit.
And Garrett's are better then turbonetics...that's why!

Ace83

iTrader: (6)

I better find out whats the real ideal, i just dont wanna jump into the install and end up with some problems

etsnet

iTrader: (2)

I'll chime in here on something I found the other day. Now this was found on the net (obviously) so not sure how true it is. Apparently greddy had a problem with turbos not lasting over 10k miles. The problem turned out to be too much oil getting to the turbo and the seals going. The problem was with the oil line being too big. I guess now they use a big oil line but a small end to restrict the oil. This all makes sense cuz when Kenny at zpi was looking at my setup, he said that the line was bigger then their's but the ends were small so less oil came out. This brings me to a problem that a good amount of people saw with there zpi kits and that's the turbo seals going. Some people including me blamed the knock off 16G's that they used on most of their kits but now I'm thinking it's the oil line being too big.

THansenite

Just got the turbo on and during cruising in my car, I am running around 1,300 F for EGT's and around 57psi of oil pressure. That seem a little high?

20tCDude05

I get 60 PSI if I floor it and 20-40 PSI for cruising, and 20-10 PSI at idle. And 1,300F is WAY high. I get 1,200F at the most, there have been some times where it went higher. But not often.