Efr testing

[motoxracer42]

Are you going to need to use a new map sensor?? I often wondered fi you would have to "tweek" that to run significantly higher boost levels.

truck is going to command full fuel at 30psi so i would imagine i would be wasting money buying a new map sensor. i probably should replace it as its seen over 120psi in the past lol. if i change to a different map sensor like a 7 bar (highest made) i would have to have the programing rescaled to match.

 

[Spectre32]

So then how do people get around using a stock map.sensor when running twins or whatever on these trucks?

 

[Dieselcraft]

Iv ran a stock map on my non vgt setups

 

[motoxracer42]

So then how do people get around using a stock map.sensor when running twins or whatever on these trucks?

i said nothing about changing the map sensor lol. im not changing it and i have always ran the factory map sensor. i run it on all my trucks.

just drove around with the 8374. pulls hard and spools well. i saw 40psi boost and 38psi drive with no gate.
ill be pulling it off this week as i picked up my primary charger today. i would run the efr as a high pressure but since im running compounds i want to tighten up the turbine side and add the gate for towing my drag truck. im very picky. i already have my garretts ready so two used efr chargers will be for sale. 2k miles on the 9180 and 1000 miles on the 8374. both non gated housings. and yes its more expensive for non gated for some reason i dont know why other than the material used in the casting. if anyone is interested shoot me a pm. thanks.

both chargers spool well but for me i like instaboost.

 

[Spectre32]

So you like the Garret's better still?

 

[motoxracer42]

So you like the Garret's better still?

for a single charger, no. i dont want to switch to an internally gated housing so i cant tighten up the ar on the turbine side of these. im locking up the 8374 at 45mph and it can still pull out of it. the turbine design on these is hard to beat. i think these chargers are ammazing. i think im more in love with the 9180 haha but its not practical for me. i have a race truck. its my go stupid truck. the 8374 pulls almost as hard, but its alot less smokey all around. i was going to dyno both of them but the dyno here is shut down.
i honestly need to play with tuning more but i dont have time. my truck is fueling hard down low and it snuffs the charger at about 1300-1500 rpms. any non vgt neat this size is going to do that on these trucks. my high pressure garrett has a smaller turbine wheel and flows less but its only going to be doing the work down low. towing in california is a challenge with modded trucks because we can only go 55mph. rpms are low unless your running 4.10 or lower gears.
i already have two vehicles running 10s or better lol so this needs to be my dd/ tow pig again. this 9180 may go on my car haha 900hp subaru lol

 

[Cutting-Edge Diesel]

this 9180 may go on my car haha 900hp subaru lol

this better happen before I go up there

 

[Spectre32]

Ok, well I was pondering Twins for my truck I am just trying to see what turbo options might be the best, I have never heard of these EFR chargeres before, far as I was aware the Garrents were the better ones to have for a twin setup.

 

[Pizza pig]

Ok, well I was pondering Twins for my truck I am just trying to see what turbo options might be the best, I have never heard of these EFR chargeres before, far as I was aware the Garrents were the better ones to have for a twin setup.

As far as im concerned there is zero proof to say "Garrett's are better". They sure do cost a hell of a lot more, so if thats what you consider better, than yeah, they're way better.

 

[motoxracer42]

Ok, well I was pondering Twins for my truck I am just trying to see what turbo options might be the best, I have never heard of these EFR chargeres before, far as I was aware the Garrents were the better ones to have for a twin setup.

it all depends on your pocketbook. a journal bearing extended tip borg is hard to beat cost/performance wise. now a ball bearing borg is going to run more than a ball bearing garrett. i know because i have about 7 ball bearing chargers lol. i am quite impressed with the efr turbos now. the fisrt couple of batches didnt work out well. wheels were coming off both ends and there were multiple failures. now i think they have there crap together. as far as garrett being better, its preference. for me, i run them but i pay for it.
whatever you do, run real stuff. not someones abortion of trying to make it flow more

this better happen before I go up there

haha its a hand ful at 630 lol idk if my tires can handle it.

As far as im concerned there is zero proof to say "Garrett's are better". They sure do cost a hell of a lot more, so if thats what you consider better, than yeah, they're way better.

i pay alot more for an efr than i do a gtx. just throwing it out there.

 

[Spectre32]

Since this is semi a grey area do you recommend just buying a "out of the box charger' like these EFR's and play with the setting available to you or would you go to someone like precision and see what they offer. I mean I assume they do something and I'm sure there are plenty of people out there who say ours is the best, but I'm also sure there are vary large differences between out of the box and what a quality builder can do.

 

[Cutting-Edge Diesel]

not someones abortion of trying to make it flow more

Good advice right there


haha its a hand ful at 630 lol idk if my tires can handle it.

its running??

...

 

[JDub]

High Tech Turbo is offering their internally gated T3 stainless steel housings for the 8374 and 9180 EFR turbos. Could really help low end response and overall boost/drive control.

 

[motoxracer42]

High Tech Turbo is offering their internally gated T3 stainless steel housings for the 8374 and 9180 EFR turbos. Could really help low end response and overall boost/drive control.

problem is most of us run t4 to run individual up pipes. t3 wasnt bad but cant really fit 2 2" pipes into the flange.

 

[06f250powerstroke]

how is the 8374 compared to a cast 66/74/91 borg box charger

 

[motoxracer42]

how is the 8374 compared to a cast 66/74/91 borg box charger

spools way faster. the 9180 out spools that charger. hands down. i just picked up a steed speed t4 manifold for a cummins and im gonna throw one of the two on my buddies truck. He wants one. i figured these would be sold by now. looks like im posting them up in a subaru forum haha

 

[06f250powerstroke]

these chargers be any good for sled pulling or would the egt's get the better or it

 

[motoxracer42]

Sorry guys ive been in my shop welding for a few days and been getting home late. actually just getting home right now.
I would try it with the 9180 with the 105 housing.. Just spray water if your worried about it but with 205/100s the most I saw was 1700 and it was for a spit second until the charger fully lit. After that they dropped down to maybe 1400. If I were to go back to a single for a street truck that would be my first choice. I wish I would have tried a smaller turbine housing but this is what we run on our 2.5 liter rally cars so I got it this way just in case I feel like destroying another motor lol.

Both chargers are sitting on my workbench in boxes so they are available if anyone wants one.

 

[Dieselcraft]

Just collecting change trying to hurry up

 

[05wh250]

What's the stall in the torque converter you ran with these?