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Old vs New ( WEISTEC INSIDE)

 
Old 04-30-2018, 10:16 AM
  #26  
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Sorry, maybe I misspoke there. I meant the variable intake length flappy things. They open (close?) around 5k rpms if I’m not mistaken? If the ECU tuning still accounts for that, and the SC’s get rid of them obviously, then you’d see some sort of artifact right around there where fuel/timing/other stuff is adjusted. I’d think that an SC tune would wipe that stuff out but maybe something is stil in there on the various maps?
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Old 04-30-2018, 01:33 PM
  #27  
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Oh, yeah no those flaps have no real connection to the ECU in how they operate or their effect on the tune. I think there's only a sensor that tells the ECU if vacuum through the system is ok and it then assumes that the flaps open/close as designed. The dip in Brads curve could most likely be smoothed out with some VVT tuning though. Seems like they've only arisen since the new blower has been fitted...I wonder if the other Gen 3 guys have the same thing.

I actually performed a test on my spare manifold last year and deleted the flaps. It didn't make any note-worthy gain or drop in power according to the butt-dyno, nor did I get any CEL. I eventually reverted back to having them back in for the sake of logic telling me they would aid flow by directing air better when they're open. I mean...they're a small obstruction in themselves sure...but without them, i'm sure there would be a lot of turbulence inside the manifold. On the basis that I couldn't notice any change with or without them, i'm guessing the drop/gain must have been in the +/- 10hp range. Makes you wonder why we didn't get a better manifold for stronger peak power like in the SLS 'tis a pity I didn't have my proper HP Tuners logging software back then, as I'd have been able to have identified an approximate gain or drop in power. Oh well...

I had a look at his log and while there's more power in there up top when he upgrades the fuel system and revises the tune for E85, there wasn't a dip in timing around where the dip in power is on the dyno plot. I don't know how it will learn it's way around that dip, but I'd love to see it all the same. I'm sure that ECU 'learning' does exist, but I struggle to understand what it exactly does. For example, if the fuelling, timing and airflow is the same from dyno day to say, a month later....what makes the car run better? I'm experiencing this on my car at the minute. Not a substantial change, but an improvement nevertheless, yet I can't attribute it to anything.

Sorry for the slight deviation, Brad I'll go and cook dinner now
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Old 07-26-2018, 06:54 PM
  #28  
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Back on the dyno again with upgraded pumps and lines no change in tune same 67 mm pulley 20 degrees timing 550cc injectors from weistec stage 3 kit


Last edited by mr747; 07-26-2018 at 07:00 PM.
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Old 07-26-2018, 07:06 PM
  #29  
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Originally Posted by mr747 View Post
Back on the dyno again with upgraded pumps and lines no change in tune same 67 mm pulley 20 degrees timing 550cc injectors from weistec stage 3 kit

Nice gains!!! Can't wait to see the new track numbers mate! Going to be insane
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Old 07-26-2018, 07:15 PM
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I have never seen a torque curve like that before....amazing. keep it up Brad, my gosh there's still more on th table as well. 9's are on the menu....
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Old 07-26-2018, 07:18 PM
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Perfect!
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Old 07-26-2018, 07:49 PM
  #32  
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Originally Posted by Celicasaur View Post
I have never seen a torque curve like that before....amazing. keep it up Brad, my gosh there's still more on th table as well. 9's are on the menu....
thats boost curve bud before and after
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Old 07-26-2018, 07:50 PM
  #33  
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Originally Posted by blackbenzz View Post
Nice gains!!! Can't wait to see the new track numbers mate! Going to be insane
Racefuel numbers next week mate and then track
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Old 07-26-2018, 08:28 PM
  #34  
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Originally Posted by mr747 View Post
thats boost curve bud before and after
Ahhh, fair enough thank you for the clarification. I've only ever see tq and hp on a graph.

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Old 07-27-2018, 02:41 AM
  #35  
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Crazy. The new SC makes more boost at 2500rpm than the old one made at any rpm. Car must rip, well done.
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Old 07-27-2018, 08:50 AM
  #36  
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Originally Posted by BLKROKT View Post
Crazy. The new SC makes more boost at 2500rpm than the old one made at any rpm. Car must rip, well done.
What graph are you looking at brah?

60+ hp gain for better designed components is engineering at it's finest!
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Old 07-27-2018, 09:10 AM
  #37  
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Originally Posted by Jasonoff View Post
What graph are you looking at brah?

60+ hp gain for better designed components is engineering at it's finest!
LOL, was thinking the same thing. The new S/C is making the same boost @ 2500 RPM as the old made @ 4100 RPM. Still insane!
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Old 07-27-2018, 09:32 AM
  #38  
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Originally Posted by Jasonoff View Post
What graph are you looking at brah?

60+ hp gain for better designed components is engineering at it's finest!
Originally Posted by 503C43 ////AMG View Post
LOL, was thinking the same thing. The new S/C is making the same boost @ 2500 RPM as the old made @ 4100 RPM. Still insane!
Yeah sorry typo, just looked at it quickly. Regardless, it comes up on boost instantly. Thatís pretty sweet. Must be a real kick.
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Old 08-05-2018, 12:14 PM
  #39  
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How much is a Gen 3 head unit? Completely bolt on?

brad are u hitting those runs with meth?

So there was a 60hp gain peak or through most of the curve? Not used to those kw graphs myself.

Brad, do you get belt slip with the 57mm?? Where can I get one, weistec didn't have any when I asked. Thx
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Old 08-05-2018, 07:41 PM
  #40  
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Originally Posted by Merc63 View Post
How much is a Gen 3 head unit? Completely bolt on?

brad are u hitting those runs with meth?

So there was a 60hp gain peak or through most of the curve? Not used to those kw graphs myself.



Brad, do you get belt slip with the 57mm?? Where can I get one, weistec didn't have any when I asked. Thx
Hey Bud

No meth it was disconnected
complete bolt on
No change in tune
im trialing 57mm this week
60whp gain through whole range
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Old 08-12-2018, 10:27 AM
  #41  
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Did you try the 57mm? With race gas if it does another 60rwhp will be pushing these engines pretty hard. Thought the cast internals were only good for 700rwhp?
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Old 08-12-2018, 08:35 PM
  #42  
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Originally Posted by Merc63 View Post
Did you try the 57mm? With race gas if it does another 60rwhp will be pushing these engines pretty hard. Thought the cast internals were only good for 700rwhp?
THis week mate lets see how you goes
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Old 09-09-2018, 07:27 PM
  #43  
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So after some more time on the dyno 60mm pulley and race fuel we have these results



We ran into some issues with the fuel rail so we had to weld some extra tabs to keep it clamped down

These runs are without ice in the tank and you can see iats are getting up there

We will try and push fo a little more power this week and then hit the track

Just letting you guys know at these power levels the PREFL m156 engine is starting to show some wearing around rings and bearings we have found some material in the last oil change

Might be time for a build sooner then later
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Old 09-09-2018, 07:46 PM
  #44  
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Over 700whp.... WOW

Dude, you’re gonna fly at the track. Can’t wait to see some 9’s.
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Old 09-09-2018, 07:46 PM
  #45  
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Impressive results.

Must now be ballistic to drive.

You need to get in a country run to Heathcote before the weather gets too warm.
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Old 09-09-2018, 07:51 PM
  #46  
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Originally Posted by GRP View Post
Impressive results.

Must now be ballistic to drive.

You need to get in a country run to Heathcote before the weather gets too warm.
Im going on sunday hopefully
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Old 09-09-2018, 07:54 PM
  #47  
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Originally Posted by BLKROKT View Post
Over 700whp.... WOW

Dude, youíre gonna fly at the track. Canít wait to see some 9ís.
hopefully sub 9.90s
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Old 09-09-2018, 08:47 PM
  #48  
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Originally Posted by mr747 View Post
hopefully sub 9.90s
Awesome. BTW how's the trans holding out?
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Old 09-09-2018, 08:52 PM
  #49  
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First one didnt last to long but this one is holding out just fine mate

Its been a while hope all is well my friend
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Old 09-10-2018, 07:51 AM
  #50  
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Originally Posted by mr747 View Post
First one didnt last to long but this one is holding out just fine mate

Its been a while hope all is well my friend
Too long!
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