Old vs New ( WEISTEC INSIDE) results
Hi guys
Here is the difference between old stage 3 Weistec vs New Gen3 Weistec Big differences in flow and design New https://cimg4.ibsrv.net/gimg/www.mbw...e5a16351f5.jpg OLDhttps://cimg1.ibsrv.net/gimg/www.mbw...bcfa06af9f.jpg OLD https://cimg7.ibsrv.net/gimg/www.mbw...ef7489fd87.jpg NEW https://cimg9.ibsrv.net/gimg/www.mbw...e6f747b3f0.jpg OLD https://cimg0.ibsrv.net/gimg/www.mbw...cc59f27044.jpg NEW https://cimg4.ibsrv.net/gimg/www.mbw...cdfd00547e.jpg New https://cimg6.ibsrv.net/gimg/www.mbw...75155138ff.jpg Old vs new https://cimg3.ibsrv.net/gimg/www.mbw...493853fc38.jpg Together Stage 2 and 3 and Gen3https://cimg5.ibsrv.net/gimg/www.mbw...ead7c09264.jpg |
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How much difference in hp?
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Power results coming this week
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Originally Posted by mr747
(Post 7437789)
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https://cimg3.ibsrv.net/gimg/www.mbw...ceaab7abe5.jpg
So finally got the results for the GEN3 what surprises me is how efficient this blower is and how the boost has raised we used the same 67mm pulley the same belt same fuel in the tank same spark plugs Weather was exactly the same we could only do 4 dyno passes as car snapped a strap on the dyno ECU didn't have alot of time to learn but I'm sure with a few more passes it would of gained a little more power and that dip would of cleaned up In a couple weeks we will be leaning on this tune a little more as car is a little boring but I cant wait to get out there with the 60mm pulley and try and run some faster passes |
https://cimg3.ibsrv.net/gimg/www.mbw...ceaab7abe5.jpg
So finally got the results for the GEN3 what surprises me is how efficient this blower is and how the boost has raised we used the same 67mm pulley the same belt same fuel in the tank same spark plugs Weather was exactly the same we could only do 4 dyno passes as car snapped a strap on the dyno ECU didn't have alot of time to learn but I'm sure with a few more passes it would of gained a little more power and that dip would of cleaned up In a couple weeks we will be leaning on this tune a little more as car is a little boring but I cant wait to get out there with the 60mm pulley and try and run some faster passes |
Nice gains mate! I'm also surprised boost went up with same pulley. These track times will be killer!
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Curious why you guys are surprised the boost increased? The impeller design is improved so isn't that a direct byproduct?
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I think the surprising part is that boost is raised throughout the rpm range. I would have expected the improved volumetric efficiency would only been noticeable up top. Basically the new design give better airflow everywhere.
Interesting though how rough and irregular they left the casting in the previous generation. Seems like there was a lot left on the table. |
Originally Posted by Jasonoff
(Post 7440916)
Curious why you guys are surprised the boost increased? The impeller design is improved so isn't that a direct byproduct?
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thought you said your car made 700whp?
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Proof is in the MPH this test was done on 67mm pulley on pump fuel
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Originally Posted by Jasonoff
(Post 7440916)
Curious why you guys are surprised the boost increased? The impeller design is improved so isn't that a direct byproduct?
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Originally Posted by Dale Ross
(Post 7441644)
thought you said your car made 700whp?
His car traps around 140mph. |
He was also on the lowest boost pulley |
Originally Posted by BLKROKT
(Post 7442422)
He was also on the lowest boost pulley 30wkw gain but its leaning out looks like i need to adjust tune and fuel pressure for 98ron https://cimg1.ibsrv.net/gimg/www.mbw...83502cc66e.jpg |
Nice Brad. What’s the reason for the more pronounced dip at 5k rpm? |
Its a mix of tune and fuel
Its pretty much dropping 2000 bar of pressure from 5k onwards Needs a fuel system mate |
That blower upgrade is definitely next gen! You picked up power everywhere and boost! Absolutely no negatives from the new blower.i was thinking it would of lost power under 5k rpms
You got me wanting to supercharge mine now lol |
Originally Posted by skratch77
(Post 7442609)
That blower upgrade is definitely next gen! You picked up power everywhere and boost! Absolutely no negatives from the new blower.i was thinking it would of lost power under 5k rpms
You got me wanting to supercharge mine now lol Well done Whipple and Weistec |
Originally Posted by BLKROKT
(Post 7442554)
Nice Brad. What’s the reason for the more pronounced dip at 5k rpm? |
Originally Posted by Celicasaur
(Post 7442669)
I didn't notice that. But now that you mention it, my car has that dip also, yet I hardly ever see it on an M156 dyno plot....
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Yeah, I am 95% certain that it's a VVT thing which on my car wasn't 100% optimised because I was focused on peak power above 5000rpm. I actually think I managed to iron mine out and improve a little on the peak output, but haven't been able to dyno yet.
I'm not sure why Brad''s car has it though. He kindly sent me a log, but I'm not sure if the answer will be in there as it doesn't contain VVT numbers. It could...just be a timing dip. My car seems hell bent on pulling 2 degrees from 5900 to 6300 rpm and then back up again after. It's not knock. I've managed to work around it, but it's not ideal. |
....on that note....has anybody with a supercharger had a VVT tune done yet? It's not like they need more power, but damn I wonder what potential lies therein.
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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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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 :nix: '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 :smash: I'll go and cook dinner now :o: |
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
https://scontent-syd2-1.xx.fbcdn.net...3f&oe=5C11AD19 |
Originally Posted by mr747
(Post 7513252)
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
https://scontent-syd2-1.xx.fbcdn.net...3f&oe=5C11AD19 |
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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Perfect!
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Originally Posted by Celicasaur
(Post 7513266)
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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Originally Posted by blackbenzz
(Post 7513262)
Nice gains!!! Can't wait to see the new track numbers mate! Going to be insane
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Originally Posted by mr747
(Post 7513281)
thats boost curve bud before and after
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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. |
Originally Posted by BLKROKT
(Post 7513444)
Crazy. The new SC makes more boost at 2500rpm than the old one made at any rpm. Car must rip, well done. 60+ hp gain for better designed components is engineering at it's finest! |
Originally Posted by Jasonoff
(Post 7513548)
What graph are you looking at brah?
60+ hp gain for better designed components is engineering at it's finest! |
Originally Posted by Jasonoff
(Post 7513548)
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
(Post 7513557)
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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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 |
Originally Posted by Merc63
(Post 7521374)
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 No meth it was disconnected complete bolt on No change in tune im trialing 57mm this week 60whp gain through whole range |
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? |
Originally Posted by Merc63
(Post 7526836)
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? |
So after some more time on the dyno 60mm pulley and race fuel we have these results
https://scontent-syd2-1.xx.fbcdn.net...54&oe=5C2B3DF1 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 |
Over 700whp.... WOW Dude, you’re gonna fly at the track. Can’t wait to see some 9’s. :y |
Impressive results.
Must now be ballistic to drive. You need to get in a country run to Heathcote before the weather gets too warm. |
Originally Posted by GRP
(Post 7549939)
Impressive results.
Must now be ballistic to drive. You need to get in a country run to Heathcote before the weather gets too warm. |
Originally Posted by BLKROKT
(Post 7549938)
Over 700whp.... WOW Dude, you’re gonna fly at the track. Can’t wait to see some 9’s. :y |
Originally Posted by mr747
(Post 7549947)
hopefully sub 9.90s :)
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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 |
Originally Posted by mr747
(Post 7549988)
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 |
This is an awesome comparison of our new charger designs.. Wow!
Thanks for sharing. Definitely looking forward to your future results. |
Originally Posted by Cory @ Weistec
(Post 7550788)
This is an awesome comparison of our new charger designs.. Wow!
Thanks for sharing. Definitely looking forward to your future results. |
Awesome to see this big kw reading. Best of luck sunday.
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Pushing big power now. Good luck for Sunday.
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Good luck Brad :wootrock:
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