Oil pressure on 7AFE Options

[southwest2118]

any body know the oil pressure i should be getting at the TEE next to the filter on the 7AFE? around what?

[trd94]

any body know the oil pressure i should be getting at the TEE next to the filter on the 7AFE? around what?

i think it is around 53-60 psi on a cold start

[Batman722]

from the BGB the oil pressure is around 3.8 to 71 psi

This post has been edited by Batman722: Jan 19, 2006 - 1:33 AM

[southwest2118]

whats BGB?

[playr158]

big giant book.....toyota's handbook on the celica

but yea normal running pressure as batman says is 71 (too high for a turbo )

[Batman722]

whats BGB?

Big Green Book

[CheesyLobster]

i get 45 or so at startup/ under throttle. At rest and warmed up the oil pressure should be like 5

[Dr_Tweak]

45 is right around where you want it when warmed up and under throttle, generally.

71 is more like when you just started it and it's COLD. Even then... that's pretty high and not normally seen.

[southwest2118]

at start up i get like 50 and under throttle its like 60 at rest its like 3... dose that sound ok??

This post has been edited by southwest2118: Feb 6, 2006 - 7:20 PM

[Batman722]

at start up i get like 50 and under throttle its like 60 at rest its like 3... dose that sound ok??

Yes

[southwest2118]

-3an piping or Restrictor ??

[southwest2118]

??? its for a rebuilt t3 .42/.48 A/R??

[Dr_Tweak]

They say you're supposed to use a restrictor if the pressure goes over 50 under load...so then yes.

I've heard of people using them and blowing their turbos, and I've heard of people using them and having great results.

I've heard of people not using them and blowing their turbos, and I've heard of people not using them and having great results.

Choose your poison.

-Doc

[southwest2118]

come on doc what do you do?

[Dr_Tweak]

It's on a case by case basis.

I buy the restrictor, but don't use it, and then I measure the oil pressure right at the turbo. If it's within reason then I go without it and if the turbo doesn't smoke, then I don't use it. If it smokes, then I install it. Either way I give it to the customer to keep so that if the turbo starts to leak oil down the road, they can put it in (if the oil pressure is the problem).

-Doc

[southwest2118]

at WOT I'm at 60 psi....so i should try just running any size to the turbo if it starts to give me problem buy restrictor.?

[Dr_Tweak]

at WOT I'm at 60 psi....so i should try just running any size to the turbo if it starts to give me problem buy restrictor.?

Well, don't run anything bigger than -3 AN or 1/8" which is what it's equal to.

-Doc

[southwest2118]

other then the internet where can i get those sizes? and steel braided? i have female 1/8" npt on the Tee from the block and the turbo.

hey doc you think i can run 5 psi with no fuel mods?

from the compressor housing to the Wastegate, should there be a boost controller? Like Nik?

This post has been edited by southwest2118: Feb 11, 2006 - 3:20 AM

[Dr_Tweak]

other then the internet where can i get those sizes? and steel braided? i have female 1/8" npt on the Tee from the block and the turbo.

hey doc you think i can run 5 psi with no fuel mods?

from the compressor housing to the Wastegate, should there be a boost controller? Like Nik?

Typically I order all my AN stuff online, I can't get it anywhere locally. However, since you have a 1/8" npt on both the tee from the block and the turbo, you can just run a 1/8" high pressure line (like a hydralic line, you can get these at pretty much any parts store) with clamps. Of course you'll need a 1/8" barbed fitting for the line to fit over. Then you don't have to mess with any of the stainless AN stuff (although that looks a lot nicer).

No.

If you know what the wastegate is set to then you don't need it, no. For that matter, you cannot run anything LESS than what the wastegate is set to, a boost controller will only allow you to run MORE boost. (For example, if the wastegate is set to 7 psi, you can set the boost controller to run 8 or 9 psi, but you cannot set it to run 5 or 6 psi. The wastegate setting is the MINIMUM.)

-Doc

This post has been edited by Dr_Tweak: Feb 11, 2006 - 3:55 AM

[southwest2118]

how do i know what the wastegate is set to?.........


you think i can get away with a fmu and a bigger pump?

[Dr_Tweak]

Normally you find out from whoever you buy the turbo from.

Yes, as long as you run no more than 7 psi, at that point the pressure gets so high when using an FMU that the injectors have trouble opening. And you should still get an MSD Boost Timing Master to retard the timing under boost.

-Doc

[southwest2118]

you think this will work PN# EAR-981603ERL x2 on http://store.summitracing.com/ and the line?

or i should get ONE with a 90 or 45 degree bend.

[Dr_Tweak]

Yeap you'll need two of those and two of these: EAR-600103ERL

And of course some stainless -3 AN line. You may want to use a 90 degree on the top of the turbo, depending on how your route everything...

-Doc

This post has been edited by Dr_Tweak: Feb 11, 2006 - 4:06 AM

[southwest2118]

****....let me sleep on it

Normally you find out from whoever you buy the turbo from.

Yes, as long as you run no more than 7 psi, at that point the pressure gets so high when using an FMU that the injectors have trouble opening. And you should still get an MSD Boost Timing Master to retard the timing under boost.

-Doc

[southwest2118]

2-EAR-600103ERL Fitting, Hose End, Speed-Seal, Straight, -3 AN Hose to Female -3 AN, Steel, Zinc Plated, Each $5.25 $10.50

1-EAR-981603ERL Fitting, Straight, -3 AN Male to 1/8 in. NPT Male, Aluminum, Blue,
Each $1.75 $1.75

1-RUS-660790 Fitting, 90 Degree, -3 AN Male to 1/8 in. NPT Male, Aluminum, Blue,
Each $6.95 $6.95


ok what hose? can't i make my own on this site with the end connections i want?

[Dr_Tweak]

http://store.summitracing.com/partdetail.a...15&autoview=sku

This post has been edited by Dr_Tweak: Feb 11, 2006 - 4:19 AM

[southwest2118]

will i need to retard timming if i use a ?safc2? and some bigger injectors?.........

[southwest2118]

what if i get rid of the 2 x speed seal end pieces and get this EAR-63010114ERL


or this will be better EAR-63010121ERL ...yaa...i'ma go to sleep

This post has been edited by southwest2118: Feb 11, 2006 - 4:26 AM

[Dr_Tweak]

will i need to retard timming if i use a ?safc2? and some bigger injectors?.........

Yes, but if you use larger injectors and the Greddy e-manage or the Perfect Power SMT6 then you don't since they both have timing control.

what if i get rid of the 2 x speed seal end pieces and get this EAR-63010114ERL


or this will be better EAR-63010121ERL ...yaa...i'ma go to sleep

You'd have to measure them to see what length you need, but if the length is right then yeah, they would work.

-Doc

[presure2]

It's on a case by case basis.

I buy the restrictor, but don't use it, and then I measure the oil pressure right at the turbo. If it's within reason then I go without it and if the turbo doesn't smoke, then I don't use it. If it smokes, then I install it. Either way I give it to the customer to keep so that if the turbo starts to leak oil down the road, they can put it in (if the oil pressure is the problem).

-Doc

thats exactly what everyone who turbos should do.
good call doc.
also if you dont wanna hassle with all that feed line stuff,
just measure what length you need.
decide which ends you want,
and call atpturbo theyll custom make you a stainless braided -3an line for a good price.
mine is 20" total length, and it was 28$
i did make my own oil filter relocation lines, tho, and if thats the way you decide to go, its not really that hard at all to do, once you get the hang of it.

This post has been edited by presure2: Feb 11, 2006 - 8:33 AM

[southwest2118]

where do i buy a -3an oil feed line for my turbo? with two females? can't find it on summit ...well i did find one but it is not for oil and i'm pretty sure it get pretty hot????

[Dr_Tweak]

If it's a stainless braided -3 AN line, then it will be fine. They're made for high temp, high pressure applications.

-Doc

[southwest2118]

If it's a stainless braided -3 AN line, then it will be fine. They're made for high temp, high pressure applications.

-Doc

but that stuff is made for brakes?

link me up to something thats 20" please

[presure2]

if your making it yourself, you need to buy a preset amount, and cut it to length.
www.ATPTURBO.com can make the line for you if you dont wanna make it yourself.

[Smokeeey420]

or just buy a t3/t4 oil feed line kit for like $70
(but yeah its probally cheaper from like summit piece by peice )

t3/t4 oil feed line kit

This post has been edited by Smokeeey420: Feb 15, 2006 - 10:15 PM

[normality78]

sorry for to bring this thread back alive since nearly 1 yr.not sure what am i asking issit revelant to this topic.

dont majority of the 7afe shld have about the same reading of oil press? i do know weather temp play apart. What other factor could cause the oil press goes abnormal high?

i've my turbo replaced twice in yr 2006 alone and my mech was suspecting my oil press too high for turbo to handle. im using rhb52, 10-40w semi-syn oil.

[presure2]

it seems like everyone who turbos the 7a has the problem of overfeeding the turbo.
most everyone who does it now includes the restrictor inline with the feed line.

[normality78]

it seems like everyone who turbos the 7a has the problem of overfeeding the turbo.
most everyone who does it now includes the restrictor inline with the feed line.

As im new in charging my 7AFE, so its common issue that most of them faced in turbocharging thier 7AFE?

[OOBE]

I've had to rebuild my turbo every year and it's getting close to time to do it again. It smokes sometimes and always stinks of burnt oil.

[Bitter]

jeeze guys, its a KNOW ISSUE that the 7afe has high oil pressure and you need a restrictor on the oil feed line. its just a brass piece that has a small hole in the middle of it, it stops too much oil from getting to the turbo.

[OOBE]

Well thanks for enlightening us with your knowledge and smarts, Captain Obvious.
















































































I kid...I kid.

[normality78]

ok. got it thn. Tks for it

[southwest2118]

i ran a restrictor for about two months till it broke...i was trying to take the line off and it snapped cheap ATP crap ...so i just left it out ....been running fine with no problems for about 4 or five months ...