twinscroll/singlescroll TURBO SHOOTOUT -- full-race / VE engineering / vivids dyno
Apr 24, 2009, 09:14 AM
#181
Mike,
Here is my old combo with the Tubular HTA3582 w/ .63 a/r, BF272 cams, TBE and Intercooler.
https://www.evolutionm.net/forums/ev...-s-w-meth.html
At 3450 lbs it went 11.1 @ 132 w/ 1.9 60ft.
I have a lot of interest in this thread and not trying to take sides... But I would like to see where the Twin Scroll results lead. Cause in my mind there is no reason what so ever for a stock turbo/FPred to work so well on a twin scroll. and the 42r setup to run twin scroll and make big power.. Why don't the mid/large fram 35r/37r benifit from the Twin Scroll all around as well.
I have some independent testing where I switched the from a T3 .82 a/r HTA86 to a TwinScroll T4 1.00 a/r. Both Garret Turbine Housing. I have only tested Pump gas so far.. But I only picked up a few Hundred RPM in spool and about 20-30 HP across the board with NO change in the Tune, just change in Hardware.And the change was done with in 5 days. I will post up results when I am done.
Here is my old combo with the Tubular HTA3582 w/ .63 a/r, BF272 cams, TBE and Intercooler.
https://www.evolutionm.net/forums/ev...-s-w-meth.html
At 3450 lbs it went 11.1 @ 132 w/ 1.9 60ft.
I have a lot of interest in this thread and not trying to take sides... But I would like to see where the Twin Scroll results lead. Cause in my mind there is no reason what so ever for a stock turbo/FPred to work so well on a twin scroll. and the 42r setup to run twin scroll and make big power.. Why don't the mid/large fram 35r/37r benifit from the Twin Scroll all around as well.
I have some independent testing where I switched the from a T3 .82 a/r HTA86 to a TwinScroll T4 1.00 a/r. Both Garret Turbine Housing. I have only tested Pump gas so far.. But I only picked up a few Hundred RPM in spool and about 20-30 HP across the board with NO change in the Tune, just change in Hardware.And the change was done with in 5 days. I will post up results when I am done.
Last edited by Migsubishi; Apr 24, 2009 at 09:33 AM.
Apr 24, 2009, 11:58 AM
#182
solid lines are 40r and dotted lines are the hta, also, just wanted to note that the 40r was not fully tuned at that boost level, rather just wastegate pressure and minor tuning. next week the 40r will be tuned at high boost, probably around 35psi. this graph was more of a test run, which is why it was not taken further in rpms. the important thing to look at is the spool up, looks nice for such a large turbo huh 
Apr 24, 2009, 12:37 PM
#185
Evolved Member
iTrader: (5)
Join Date: Jan 2006
Location: Dirrrty Jerzey
Posts: 1,150
Likes: 0
Received 0 Likes
on
0 Posts
scorke, i found in my tial wastegates that a 1.2 bar netted my setup almost 27 psi large red and small blue, it was supposed to be 18psi...on the dyno it settled to 23.5 psi and maxxing 25.xx, then almost 27 on the road...the blue 10psi spring got me 15psi on wastegate pressure alone on the road so i can see how you are getting that high a psi on wastegate spring pressure alone
Last edited by 555R; Apr 25, 2009 at 09:36 PM.
Apr 24, 2009, 01:25 PM
#186
scorke, i found in my tial wastegates that a 1.2 bar netted my setup almost 27 psi large blue and small red, it was supposed to be 18psi...on the dyno it settled to 23.5 psi and maxxing 25.xx, then almost 27 on the road...the blue 10psi spring got me 15psi on wastegate pressure alone on the road so i can see how you are getting that high a psi on wastegate spring pressure alone
Apr 24, 2009, 04:41 PM
#187
in my mind there is no reason what so ever for a stock turbo/FPred to work so well on a twin scroll. and the 42r setup to run twin scroll and make big power.. Why don't the mid/large fram 35r/37r benifit from the Twin Scroll all around as well...I switched the from a T3 .82 a/r HTA86 to a TwinScroll T4 1.00 a/r. Both Garret Turbine Housing. I have only tested Pump gas so far.. But I only picked up a few Hundred RPM in spool and about 20-30 HP across the board with NO change in the Tune, just change in Hardware.And the change was done with in 5 days. I will post up results when I am done.
yes, i put 2 springs in the WGs @ 26lbs per tial's chart. we couldnt get the mystery boost controller he had on the car to work right, so i installed in some stiff springs and put a simple manual controller on. i personally think the stiffer the wg spring the better...
Apr 25, 2009, 09:39 PM
#189
Evolved Member
iTrader: (5)
Join Date: Jan 2006
Location: Dirrrty Jerzey
Posts: 1,150
Likes: 0
Received 0 Likes
on
0 Posts
edited my springs colors
im guessing my boost was so high for a 1.2 bar setup was from a low backpressure turbo
or Tial didnt color them right...hitting 27psi on the street was a little disconcerting and unsafe as it was tuned for 25 psi...however on the dyno it hit 25psi and when it warmed up settled to 23.5 which was fine...
i guess it shows the dyno isnt always the best place to tune as the loads are very different on the car
BTW
twin scroll and Borg Warner kicks ***
thanks Geoff
CRCAIN
I have twin 44m gates if that helps
im guessing my boost was so high for a 1.2 bar setup was from a low backpressure turbo
or Tial didnt color them right...hitting 27psi on the street was a little disconcerting and unsafe as it was tuned for 25 psi...however on the dyno it hit 25psi and when it warmed up settled to 23.5 which was fine...
i guess it shows the dyno isnt always the best place to tune as the loads are very different on the car
BTW
twin scroll and Borg Warner kicks ***
thanks Geoff
CRCAIN
I have twin 44m gates if that helps
May 8, 2009, 09:32 AM
#191
im on the east coast right now. On monday we're going up to Iveytune and will re-dyno this car:
https://www.evolutionm.net/forums/se...oll-gt35r.html
the only changes were adding a built 2.3L bottom end, and we went to the 1.10 a/r turbine housing on the borgwarner. ill be sure to post up the results afterwards. it will probably get a headgames ported head after this testing
https://www.evolutionm.net/forums/se...oll-gt35r.html
the only changes were adding a built 2.3L bottom end, and we went to the 1.10 a/r turbine housing on the borgwarner. ill be sure to post up the results afterwards. it will probably get a headgames ported head after this testing
May 8, 2009, 09:45 AM
#192
I guess I'll never understand how Buschur and AMS sell single scroll kits to most Evo owners, and Full-Race can't manage to put together a conclusive test showing why Buschur and AMS are doing it wrong. Come on Full-Race... it's called a "test"... you dyno a car, change one thing, and re-dyno it. GOT IT!
"Buschur 35R Shearer Kit" versus "Whatever Full-Race thinks can Hang with it"
It's that simple... spool for spool, who makes the most power.
"Buschur 35R Shearer Kit" versus "Whatever Full-Race thinks can Hang with it"
It's that simple... spool for spool, who makes the most power.
May 8, 2009, 11:35 AM
#193
While that would prove who makes the superior kit, it wouldn't really prove if twinscroll > single scroll.
You have to realize, the different kits will have slightly different down pipes, intake pipes, intercooler pipe, etc. so a back to back comparision of anything less then an entire kit is more difficult then you want to admit.
Then people would be *****ing that it's not a fair comparision because XXXX changed... blah blah blah
You have to realize, the different kits will have slightly different down pipes, intake pipes, intercooler pipe, etc. so a back to back comparision of anything less then an entire kit is more difficult then you want to admit.
Then people would be *****ing that it's not a fair comparision because XXXX changed... blah blah blah
May 8, 2009, 01:52 PM
#194
While that would prove who makes the superior kit, it wouldn't really prove if twinscroll > single scroll.
You have to realize, the different kits will have slightly different down pipes, intake pipes, intercooler pipe, etc. so a back to back comparision of anything less then an entire kit is more difficult then you want to admit.
Then people would be *****ing that it's not a fair comparision because XXXX changed... blah blah blah
You have to realize, the different kits will have slightly different down pipes, intake pipes, intercooler pipe, etc. so a back to back comparision of anything less then an entire kit is more difficult then you want to admit.
Then people would be *****ing that it's not a fair comparision because XXXX changed... blah blah blah
crcrain, stop *****ing please.
Scorke
May 8, 2009, 02:16 PM
#195
I guess I'll never understand how Buschur and AMS sell single scroll kits to most Evo owners, and Full-Race can't manage to put together a conclusive test showing why Buschur and AMS are doing it wrong. Come on Full-Race... it's called a "test"... you dyno a car, change one thing, and re-dyno it. GOT IT!
"Buschur 35R Shearer Kit" versus "Whatever Full-Race thinks can Hang with it"
It's that simple... spool for spool, who makes the most power.
"Buschur 35R Shearer Kit" versus "Whatever Full-Race thinks can Hang with it"
It's that simple... spool for spool, who makes the most power.