the first person to get an Edelbrock SC on a 6.2!

bass mechanic · July 16, 2014

holy cool, going back a few pages, where did you have the black chrome wheels made?

i didn't have them made, i just bought them ill have to find you a link they were only 840 bucks. i had my local discount tire store get them for me at their cost, i saved a few bucks on shipping.

all totaled i paid like 1700 for everything including TPMS and black chrome lug nuts.

bass mechanic · July 16, 2014

I'm really curious as to how the Tow/Haul mode is going to work now with adding forced induction. One thing I really love about my truck is how it engine brakes when tow/haul mode is activated. Not sure how that feature would work with a supercharger added in.

I'm really curious as to how the Tow/Haul mode is going to work now with adding forced induction. One thing I really love about my truck is how it engine brakes when tow/haul mode is activated. Not sure how that feature would work with a supercharger added in.

i thought abut that, and i assure you they are testing it but heres my thoughts about that..

when the engine rematches it is a very fast blip of the throttle, having had prior cars (trucks) with a SC the boost is instantaneous BUT it still takes at least a second to come up on boost because the bypass valve won't close that fast, and i don't think the throttle has to open far enough to really drop you out of vacuum for the shift anyway.

but if it were to go into boost, i still don't think it will matter because by then the throttle is already closed again.

bass mechanic · July 16, 2014

Did they say anything about how much was left in the stock fuel system for cranking up boost or other additional mods?

Also something isn't adding up for power numbers. If they added 115 rwhp and you have 20% loss that's about 144 at the crank for a total crank HP of 564, not even close to 600.

they did not say and i did not ask. but i know magnusen was running closer to 9 psi on a 53 or a 6.2 i can't recall and mentioned no fuel upgrades needed.

keep in mind these engines are direct injected with a mechanical pump on the engine and an electric in the tank. i saw fuel pressures as high as 90 psi when it was stock.

as for the numbers, i don't have anything official yet as for a dyno sheet. for all i know the dyno i got was one of several they whipped up real quick to reply to my email. they may have had 10 different dynos and the one i got was after it was heat soaked.

my guess is they will take the best of the runs they had each time.

so let's wait to raise the BS flag until we have something concrete.

all i can tell you is this.. i was speaking to the head of engineering they are still tuning and tweaking it. but he said the ONLY difference between the truck and the stingray is the stingray has better flowing exhaust, and a more efficient transmission because it's not a 4WD and not turning big heavy wheels.

he said they are calculating the DT losses based on the factory claimed hp to observed on wheel dyno he was rough guessing when he told me.

let's say it only does 580 hp at the crank, who cares??

the fact is he told me they are running the same kit basically as they run on the stingray with virtually the same engine. he said they achieved their goal of max power out of the tune for a truck, the tunes are different slightly yes but overall the same boost, the same pulley and the same engine.

the Stingray actually had the engine run on the engine dyno, and the truck on a chassis dyno so the overall outcome of the truck is what it is. but the net HP at the crank if they had taken it out and run it on a engine dyno would yield nearly the same result as the stingray. that's why he said they will likely advertise a similar number to the stingray which is near 600.

maybe they call it 580 who's counting and who is complaining over 20 hp?

Jennabear · July 16, 2014

I'm sure you will be quite happy with the results! Either way, will be night and day from stock!

thetruck454 · July 17, 2014

they did not say and i did not ask. but i know magnusen was running closer to 9 psi on a 53 or a 6.2 i can't recall and mentioned no fuel upgrades needed.

keep in mind these engines are direct injected with a mechanical pump on the engine and an electric in the tank. i saw fuel pressures as high as 90 psi when it was stock.

as for the numbers, i don't have anything official yet as for a dyno sheet. for all i know the dyno i got was one of several they whipped up real quick to reply to my email. they may have had 10 different dynos and the one i got was after it was heat soaked.

my guess is they will take the best of the runs they had each time.

so let's wait to raise the BS flag until we have something concrete.

all i can tell you is this.. i was speaking to the head of engineering they are still tuning and tweaking it. but he said the ONLY difference between the truck and the stingray is the stingray has better flowing exhaust, and a more efficient transmission because it's not a 4WD and not turning big heavy wheels.

he said they are calculating the DT losses based on the factory claimed hp to observed on wheel dyno he was rough guessing when he told me.

let's say it only does 580 hp at the crank, who cares??

the fact is he told me they are running the same kit basically as they run on the stingray with virtually the same engine. he said they achieved their goal of max power out of the tune for a truck, the tunes are different slightly yes but overall the same boost, the same pulley and the same engine.

the Stingray actually had the engine run on the engine dyno, and the truck on a chassis dyno so the overall outcome of the truck is what it is. but the net HP at the crank if they had taken it out and run it on a engine dyno would yield nearly the same result as the stingray. that's why he said they will likely advertise a similar number to the stingray which is near 600.

maybe they call it 580 who's counting and who is complaining over 20 hp?

Sorry, I didn't mean to sound like I was attacking you, I just tend to over analyze and ask lots of questions. I'm anxiously waiting for your results because I have a 2015 6.2/8spd waiting to get ordered and I will be following suit with either a magnacharger or eforce. I can't go back to a stock truck after having the one in my signature. I ask about the fuel issue because I I have read the LT1 in the corvettes are having fuel issues with boost. Because the high pressure pump is driven off the cam, low rpm high boost situations where lots more fuel than stock is required were causing issues. On the new supercharged LT4 in the C7 z06 GM didn't change the cam profile that drives the high pressure pump, but they did increase the plunger size so more fuel is moved per stroke. I wouldn't be surprised if this becomes a common upgrade for higher hp applications.

bass mechanic · July 17, 2014

Sorry, I didn't mean to sound like I was attacking you, I just tend to over analyze and ask lots of questions. I'm anxiously waiting for your results because I have a 2015 6.2/8spd waiting to get ordered and I will be following suit with either a magnacharger or eforce. I can't go back to a stock truck after having the one in my signature. I ask about the fuel issue because I I have read the LT1 in the corvettes are having fuel issues with boost. Because the high pressure pump is driven off the cam, low rpm high boost situations where lots more fuel than stock is required were causing issues. On the new supercharged LT4 in the C7 z06 GM didn't change the cam profile that drives the high pressure pump, but they did increase the plunger size so more fuel is moved per stroke. I wouldn't be surprised if this becomes a common upgrade for higher hp applications.

oh, no worries, i know your just asking questions..

if i get a chance to ask i will but i suspect that if they knew there might be a problem they would be addressing it with a fuel upgrade ahead of time.

i am looking at airfare and trying to decide if i should buy a ticket or wait. i think ill end up waiting until monday afternoon as they said they were going to do some towing on monday as their final test.

fondupot · July 17, 2014

i didn't have them made, i just bought them ill have to find you a link they were only 840 bucks. i had my local discount tire store get them for me at their cost, i saved a few bucks on shipping.

all totaled i paid like 1700 for everything including TPMS and black chrome lug nuts.

Then I am guessing they arent the OEM All Terrain 20's?

Either way the look killer.

bass mechanic · July 17, 2014

Then I am guessing they arent the OEM All Terrain 20's?

Either way the look killer.

nope they are reproduction, but they look just like the GM wheels and they are the exact same specs.

you can get a set just like the ones in your sig for 740 bucks except the insides are black instead of gray

fondupot · July 17, 2014

nope they are reproduction, but they look just like the GM wheels and they are the exact same specs.

you can get a set just like the ones in your sig for 740 bucks except the insides are black instead of gray

Nice. I could then prolly sell my OEM ones for 1-2k.....got my wheels turning.

bass mechanic · July 17, 2014

Just wait till you see my truck with everything chrome BLACK CHROMED and those wheels

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bass mechanic · July 17, 2014

Ok guys here you go!

Attached are the Eforce Dyno graphs. The boost data was taking with logging software from the MAP sensor, not the dyno. Boost at 4500 – 6.25psi, 5500 – 7.5psi, and 6000 – 8 – 8.5psi.

For some reason I cannot attach pic, stand by

Someone message me with your cell phone or email so you can post for me I'm driving!

Sent from my iPhone using Tapatalk

Madcow2020 · July 17, 2014

Graphs

Ok I can not get the graphs or any image to load at the moment.

Sent from the future via a wifi time portal.

thetruck454 · July 17, 2014

Ok guys here you go!

Attached are the Eforce Dyno graphs. The boost data was taking with logging software from the MAP sensor, not the dyno. Boost at 4500 6.25psi, 5500 7.5psi, and 6000 8 8.5psi.

For some reason I cannot attach pic, stand by

Someone message me with your cell phone or email so you can post for me I'm driving!

Sent from my iPhone using Tapatalk

Work productivity is suffering until you post the graphs!