New Born Weistec Stage 3 Monster
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2015 CLS63 S-AMG
New Born Weistec Stage 3 Monster
The anticipation will be over soon and I will finally get behind the wheel of my newly born monster and I couldn’t be more excited. 
All new mods include:
Weistec Stage 3 Supercharger
Weistec ECU Tune
Weistec 722.9 Valve Body & TCU Upgrade
Weistec Trunk Ice Tank
Weistec Billet Catch Can
Along with the blower I am adding a few other little goodies:
Custom electronic cut out’s
Evosport rotors
MHP's 180F thermostat
Dad’s CF vented hood
Braille lightweight battery
And a few CF accessories-front lip/roof spoiler and Mode Carbon's CF front grill
I am picking up the car some time this week and plan to have her on a dyno and drag strip this Saturday. I was able to get a baseline dyno number before the install and my car put down 450whp and 385wtq on a Mustang Dyno. And my car ran 11.73 at 120mhp my first time ever at a drag strip on street tires. I cant wait to see what it will put down on the dyno and at the strip now. (Baseline tests were with MHP longtube headers and catless mids with a Eurocharged tune and a Evosport pulley)
Here are some pics of everything from Weistec as well as baseline dyno graph.
Big thanks to both Steve @ Weistec and Marcin @ Speedriven
All new mods include:
Weistec Stage 3 Supercharger
Weistec ECU Tune
Weistec 722.9 Valve Body & TCU Upgrade
Weistec Trunk Ice Tank
Weistec Billet Catch Can
Along with the blower I am adding a few other little goodies:
Custom electronic cut out’s
Evosport rotors
MHP's 180F thermostat
Dad’s CF vented hood
Braille lightweight battery
And a few CF accessories-front lip/roof spoiler and Mode Carbon's CF front grill
I am picking up the car some time this week and plan to have her on a dyno and drag strip this Saturday. I was able to get a baseline dyno number before the install and my car put down 450whp and 385wtq on a Mustang Dyno. And my car ran 11.73 at 120mhp my first time ever at a drag strip on street tires. I cant wait to see what it will put down on the dyno and at the strip now. (Baseline tests were with MHP longtube headers and catless mids with a Eurocharged tune and a Evosport pulley)
Here are some pics of everything from Weistec as well as baseline dyno graph.
Big thanks to both Steve @ Weistec and Marcin @ Speedriven
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2015 CLS63 S-AMG
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2015 CLS63 S-AMG
Looking forward to it! I interested to see how much stronger the car runs on 93 octane tune. Steve @ weistec told me that the cars running the higher octane tune run alot stronger. So I am interested to compare gains, what tune will you be running? Will you have a 91 tune?
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C63 AMG
Looking forward to it! I interested to see how much stronger the car runs on 93 octane tune. Steve @ weistec told me that the cars running the higher octane tune run alot stronger. So I am interested to compare gains, what tune will you be running? Will you have a 91 tune?
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From: Wyoming
ford svt's, and C63!!!
How much boost are you guys running without having to run race gas or drop compression? Also, what are the stock size injectors and what are a common upgrade size when going to a blower on pump gas? Awesome stuff guys!
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2015 CLS63 S-AMG
What do you mean when you say for a bit more safety? Is there something wrong or unsafe with running 93 octane tune and if so what? I always though you should be tuned for whatever gas you run am I wrong?
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From: Denver
C63
He's propabley going to cry again thinking I'm Jacob lol.
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C63 AMG
A 91 tune will run less ignition timing than a 94 tune. Running higher octane fuel will provide more knock resistance before the knock sensor would need to retard timing from heat build up etc.
Skaarlaj, I'm not sure what the boost is tbh. Static compression is stock at 11.3:1, dynamic compression is altered for the blower via the cams to run under boost. The kit comes with larger injectors.
Jacob, go learn how an engine works and basic tuning principles. The higher the octane the better when playing with boost and high static compression engines. (if the fuels stoichiometric ratio remains constant)
Skaarlaj, I'm not sure what the boost is tbh. Static compression is stock at 11.3:1, dynamic compression is altered for the blower via the cams to run under boost. The kit comes with larger injectors.
Jacob, go learn how an engine works and basic tuning principles. The higher the octane the better when playing with boost and high static compression engines. (if the fuels stoichiometric ratio remains constant)
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From: Denver
C63
A 91 tune will run less ignition timing than a 94 tune. Running higher octane fuel will provide more knock resistance before the knock sensor would need to retard timing from heat build up etc.
Skaarlaj, I'm not sure what the boost is tbh. Static compression is stock at 11.3:1, dynamic compression is altered for the blower via the cams to run under boost. The kit comes with larger injectors.
Jacob, go learn how an engine works and basic tuning principles. The higher the octane the better when playing with boost and high static compression engines. (if the fuels stoichiometric ratio remains constant)
Skaarlaj, I'm not sure what the boost is tbh. Static compression is stock at 11.3:1, dynamic compression is altered for the blower via the cams to run under boost. The kit comes with larger injectors.
Jacob, go learn how an engine works and basic tuning principles. The higher the octane the better when playing with boost and high static compression engines. (if the fuels stoichiometric ratio remains constant)
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2015 CLS63 S-AMG
A 91 tune will run less ignition timing than a 94 tune. Running higher octane fuel will provide more knock resistance before the knock sensor would need to retard timing from heat build up etc.
Skaarlaj, I'm not sure what the boost is tbh. Static compression is stock at 11.3:1, dynamic compression is altered for the blower via the cams to run under boost. The kit comes with larger injectors.
Jacob, go learn how an engine works and basic tuning principles. The higher the octane the better when playing with boost and high static compression engines. (if the fuels stoichiometric ratio remains constant)
Skaarlaj, I'm not sure what the boost is tbh. Static compression is stock at 11.3:1, dynamic compression is altered for the blower via the cams to run under boost. The kit comes with larger injectors.
Jacob, go learn how an engine works and basic tuning principles. The higher the octane the better when playing with boost and high static compression engines. (if the fuels stoichiometric ratio remains constant)
So I think what you are trying to say is that its safer running a higher octane gas then what you are tuned for? Am I correct?
Thanks
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From: Westwood, NJ
2011 C63, '78 LS1 280Z, '71 240Zt, '87 Grand National, '01 F150
The higher the octane number, the slower the explosion which in turn equals more resistance to detonation. So yes, if you are tuned for a lower octane number and use higher number fuel there would be that much more protection against detonation.
Think of it this way, a tune for a higher number would use more spark advance. The slower flame front on the higher number fuel woula allow the spark to ignite the fuel sooner on the compression stroke because the mixture would take longer to fully ignite. What a tuner is trying to do is get the mixture ignited as close to TDC as possible to take full advantage of the explosion created. That being said, if you tune for a faster explosion but ave a faster one, the full ignition of the mixture would be further down on the power stroke than optimal. Sure, you would be leaving some power on the table but it would be that much more resistant to detonation.
Joe
Think of it this way, a tune for a higher number would use more spark advance. The slower flame front on the higher number fuel woula allow the spark to ignite the fuel sooner on the compression stroke because the mixture would take longer to fully ignite. What a tuner is trying to do is get the mixture ignited as close to TDC as possible to take full advantage of the explosion created. That being said, if you tune for a faster explosion but ave a faster one, the full ignition of the mixture would be further down on the power stroke than optimal. Sure, you would be leaving some power on the table but it would be that much more resistant to detonation.
Joe
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C63 AMG
A fuels octane rating is its resistance to detonation. The higher the number the more it can handle pressure and heat before it explodes.
As the piston is coming up, the spark goes off creating a pressure wave (flame kernel). If you get too much pressure for the fuel it will start to self ignite a head of the flame kernel causing pinging aka knock.
With the blower, the air is compressed and becomes hotter, as the engine gets heat soaked this worsens. You want your fuel to be able to handle the increase in temps and pressure.
Weistec runs the air fuel mixture on the rich side so the extra fuel will help cool the intake charge as well.
As the piston is coming up, the spark goes off creating a pressure wave (flame kernel). If you get too much pressure for the fuel it will start to self ignite a head of the flame kernel causing pinging aka knock.
With the blower, the air is compressed and becomes hotter, as the engine gets heat soaked this worsens. You want your fuel to be able to handle the increase in temps and pressure.
Weistec runs the air fuel mixture on the rich side so the extra fuel will help cool the intake charge as well.
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C63 AMG
Is this a test lol.
All a race tune is, is more ignition advance combined with a high octane fuel. The advancing ignition creates more cylinder pressure, aka more force down on the piston. The higher octane fuel is needed to handle the increased pressure.
All a race tune is, is more ignition advance combined with a high octane fuel. The advancing ignition creates more cylinder pressure, aka more force down on the piston. The higher octane fuel is needed to handle the increased pressure.
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2015 CLS63 S-AMG
I am trying to take this all in while trying to understand everything to the best of my ability. So what I am getting from all this is that running a 93+ octane tune is not recommended??? Is anyone else running a 93 octane tune?
What if I always ran 100 octane (or octane boosters) on my 93 tune would that be like you running 94 octane on a 91 tune? And be safer?
Thanks for the info guys you have passed your test lol
What if I always ran 100 octane (or octane boosters) on my 93 tune would that be like you running 94 octane on a 91 tune? And be safer?
Thanks for the info guys you have passed your test lol
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2015 CLS63 S-AMG
So today I was reading the rules and regulations of the drag strip I will be attending on Saturday. How come it says that a roll cage is mandatory for cars running faster then 11.5? I am pretty sure that all drag strips have about the same rules but I know not everyone running faster then 11.5 on here have roll cages. Should I be concerned or are most drag strips lenient on these rules. The last drag strip i attended had no inpspection at all, they didn't even make me wear a helmet until after my first run. But thats because all the hillbillys were laughing that I brought a mercedes to a drag strip
Last edited by Blown63; Apr 9, 2013 at 12:36 AM.
