MBC Testing by Boosted Tuning
May 15, 2011, 10:58 AM
#46
heres a hallman pro rx with ceramic ball and stiffer spring (not the newest stiff spring)
on my car with the br 2.3 and stage 3 head and fp black .. exhaust manifold is ported so is the turbo.
temps were 75f, wastegate is a 25psi actuator preloaded to hold 29-30psi.
i have noticed the hallman control is very sensitive to turns of the knob.. if not turned just right it bleeds off excessively.
on my car with the br 2.3 and stage 3 head and fp black .. exhaust manifold is ported so is the turbo.
temps were 75f, wastegate is a 25psi actuator preloaded to hold 29-30psi.
i have noticed the hallman control is very sensitive to turns of the knob.. if not turned just right it bleeds off excessively.
May 15, 2011, 12:44 PM
#49
Perrin was first. There's an old thread on here with all the drama that usually follows when a competitors copies the others product. It may have been deleted though.
I personally like the Perrin in-line. I had a Hallman for a long time after chucking away my electronic 3 port back in 2004. The Hallman has been nothing but reliable. But like previously mentioned, you had to make sure you had it twisted just perfect or it would bleed excess boost. I don't know how else to explain it than you give it a quarter twist, it would spike 24 psi but only hold 19 up top, twist it up a 1/4, come back an 1/8 and it would now hold 21 psi up top. Very frustrating.
The Perrin in-line is straight, set it and it is consistent. No more twist turn, test, twist turn, test, and repeat.
I was hoping the GrimmSpeed would beat the Perrin/Buschur. Guess I'll stick with what I have.
I personally like the Perrin in-line. I had a Hallman for a long time after chucking away my electronic 3 port back in 2004. The Hallman has been nothing but reliable. But like previously mentioned, you had to make sure you had it twisted just perfect or it would bleed excess boost. I don't know how else to explain it than you give it a quarter twist, it would spike 24 psi but only hold 19 up top, twist it up a 1/4, come back an 1/8 and it would now hold 21 psi up top. Very frustrating.
The Perrin in-line is straight, set it and it is consistent. No more twist turn, test, twist turn, test, and repeat.
I was hoping the GrimmSpeed would beat the Perrin/Buschur. Guess I'll stick with what I have.
May 15, 2011, 01:51 PM
#51
Back in 06-07, I did testing of the FORGE w/ light spring and Hallman (dont know what spring) and the FORGE beat it that time too. This is why I started using FORGE MBC's in the beginning and continue to do so.
May 15, 2011, 01:53 PM
#52
let me use a better use of words.. it should be much closer with the stiffer spring. almost neck to neck.. i never heard anything bad about the forge mbc myself.. and i use their bov and it is built with quality as well.. so to see the forge mbc win isnt a surprise to me.
Last edited by tscompusa2; May 15, 2011 at 02:16 PM.
May 15, 2011, 06:28 PM
#53
I have done cars on the dyno with a Hallman. Owner never touches anything. Its back on the dyno at a later date. And its down on boost. I then turn it back up to equal what it was at a previous date. Not all Hallmans but had this happen quite a few times. I think either the springs lose tension over time. Perhaps using the stiffer spring in the Hallman would alleviate this issue. Really like the Forge. Use them on all my own vehicles. Light spring tends to top out at 24-25 psi depending on the car. Yet to use the stiff spring sometimes the lowest boost possible is 24 psi or more. Have often cut a half to a full coil off the Forge stiff spring, stretched it a bit and then was able to go as low as 20 but as high as 34-35 psi. Perhaps all these ball and spring controllers suffer from a sort of coil bind or varying ratios.
Perrin inline worked ok. Didn't see it spool as fast as the Hallman or Forge though.
Do have a Buschur inline on my Syclone. Works great. Been on 19 psi for the last year and never need to touch it.
Perrin inline worked ok. Didn't see it spool as fast as the Hallman or Forge though.
Do have a Buschur inline on my Syclone. Works great. Been on 19 psi for the last year and never need to touch it.
May 16, 2011, 08:54 AM
#54
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May 16, 2011, 10:07 AM
#56
Well you guys can do your own testing, to see if it will beat the FORGE. IMO, you can't say "with stiff spring it will beat the forge pretty easy." without actually testing it.
Back in 06-07, I did testing of the FORGE w/ light spring and Hallman (dont know what spring) and the FORGE beat it that time too. This is why I started using FORGE MBC's in the beginning and continue to do so.
Back in 06-07, I did testing of the FORGE w/ light spring and Hallman (dont know what spring) and the FORGE beat it that time too. This is why I started using FORGE MBC's in the beginning and continue to do so.
May 16, 2011, 10:29 AM
#57
Not knocking your test at all, obviously members appreciate you doing it. I am very confident that the results would be different with the Hallman using the stiff spring and steel ball. As I posted before the Hallman held boost up too much better then my Forge but I didn't log to see how quickly it hit 20 psi though. Maybe just edit your OP/2nd post and say that the Hallman was using the soft spring and ceramic ball, just so other members know. Thanks again for doing the test!
The spring only affects range of boost adjustment. If both these are true then your statements have no regard on taper performance.
May 16, 2011, 11:48 AM
#58
May 16, 2011, 11:54 AM
#59
Not knocking your test at all, obviously members appreciate you doing it. I am very confident that the results would be different with the Hallman using the stiff spring and steel ball. As I posted before the Hallman held boost up too much better then my Forge but I didn't log to see how quickly it hit 20 psi though. Maybe just edit your OP/2nd post and say that the Hallman was using the soft spring and ceramic ball, just so other members know. Thanks again for doing the test!
Ill add what springs where in what MBC,
May 16, 2011, 12:12 PM
#60
You are probably correct with the soft spring in the Forge. I bought it from Dynoflush 5 yrs ago during one of his tuning trip as the Forge MBC did perform better then the crappy TurboXs MBC I had on the car. At the time I swapped from the Forge to Hallman I was running 25psi on stock turbo. You are running 27psi on the FP Black correct? I can't remember if you said you were using the soft or stiff spring in the Forge?Thanks for doing the test Boosted...Anymore tests planned??