who thinks magna and whipple is the ticket?
10-18-2011 | 07:18 PM
#1
who thinks magna and whipple is the ticket?
Ok guys,looking for opinions,comments, criticism,ideas,suggestions.
Here is my beef,years ago you could toss on a radix 112 on a truck,lets say an SSS truck for an example.you also stuff in a mild cam and headers, pulley down and a little tweeking and you are into the 12s right??(some low 12s)
NOW these days you start with a 6.2L 50 more HP than the 6.0 and now you have a 6sp automatic,then you toss on a bigger magnacharger,you would expect or atleast I do,it will run as good as the SS truck modded out.
These do not.Seems they run mid 13s in a denali,to break into the 12s you need headers pulley and some tweeking
I guess what I expected would be a magna or whipple plug and play stock should run 12.9 in a denali truck,touch quicker in a silverado if launched well
OK guys fire away
Here is my beef,years ago you could toss on a radix 112 on a truck,lets say an SSS truck for an example.you also stuff in a mild cam and headers, pulley down and a little tweeking and you are into the 12s right??(some low 12s)
NOW these days you start with a 6.2L 50 more HP than the 6.0 and now you have a 6sp automatic,then you toss on a bigger magnacharger,you would expect or atleast I do,it will run as good as the SS truck modded out.
These do not.Seems they run mid 13s in a denali,to break into the 12s you need headers pulley and some tweeking
I guess what I expected would be a magna or whipple plug and play stock should run 12.9 in a denali truck,touch quicker in a silverado if launched well
OK guys fire away
Last edited by gonzo 6.2; 10-18-2011 at 07:33 PM.
10-18-2011 | 07:31 PM
#3
On The Tree
Joined: Feb 2011
Posts: 190
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My Denali ran high 13's with the Whipple kit at 6 psi (was supposed to be 8-10psi) and their crappy tune. I stepped down a size and raised the boost to 8.5 psi, worked on the tune a little bit and I am VERY close to 12's. I don't have any other mods. I would say that's close to what you were expecting.
10-18-2011 | 08:14 PM
#4
TECH Fanatic
Joined: Jul 2006
Posts: 1,737
Likes: 0
From: K.C.
to my knowledge, the SSS didn't have a 9.5 inch ring gear to turn either. could be wrong, probably am.
power to weight is a huge roll. drivetrain loss plays into this as well.
think of it like this. the camaro shares the same motor and trans, puts down more whp. whats different? the rear end. takes more power to turn the 14 bolt. now lets add 4wd, or awd to the table. even less power gets to the ground. even if 4wd is still not active there is still power being used to turn it, very little, but the added weight of the axles, transfer case, prop shaft, front diff and added wiring do add up.
take the lightest of the ecsb 6.2 trucks. 2wd. a couple of us have them. 13.5 with a tune and muffler. 13.4 with tune and intake and mine. no frills, no leather, no crew cabs. a purpose bought truck.
4wd's may put down the same power as the 2wd, but it shows the weight difference on the track. on average a stock weight lt 1/2 2wd with right at 5k lbs. you throw in an ltz or denali. the weight jumps another 800 - 1000 lbs. be it 4wd or awd. for every 100 lbs, there is a 10hp gain or loss. or so the old racing saying goes at least.
something else people think has a huge difference is wheel and tire combo's. 17's with all terrains weigh more than tahoe 20's with street tires. weigh them and see what im getting at. contact patch is wider on the 20's.
the tune plays HUGELY into how fast you run with a 6.2. you find someone who knows how to tune one, you're golden. dyno numbers don't mean a damn thing if you can't drive.
in short.
4wd/awd guys will need more power than us 2wd owners. this has been seen time and time again.
power to weight is a huge roll. drivetrain loss plays into this as well.
think of it like this. the camaro shares the same motor and trans, puts down more whp. whats different? the rear end. takes more power to turn the 14 bolt. now lets add 4wd, or awd to the table. even less power gets to the ground. even if 4wd is still not active there is still power being used to turn it, very little, but the added weight of the axles, transfer case, prop shaft, front diff and added wiring do add up.
take the lightest of the ecsb 6.2 trucks. 2wd. a couple of us have them. 13.5 with a tune and muffler. 13.4 with tune and intake and mine. no frills, no leather, no crew cabs. a purpose bought truck.
4wd's may put down the same power as the 2wd, but it shows the weight difference on the track. on average a stock weight lt 1/2 2wd with right at 5k lbs. you throw in an ltz or denali. the weight jumps another 800 - 1000 lbs. be it 4wd or awd. for every 100 lbs, there is a 10hp gain or loss. or so the old racing saying goes at least.
something else people think has a huge difference is wheel and tire combo's. 17's with all terrains weigh more than tahoe 20's with street tires. weigh them and see what im getting at. contact patch is wider on the 20's.
the tune plays HUGELY into how fast you run with a 6.2. you find someone who knows how to tune one, you're golden. dyno numbers don't mean a damn thing if you can't drive.
in short.
4wd/awd guys will need more power than us 2wd owners. this has been seen time and time again.
10-18-2011 | 08:23 PM
#5
to my knowledge, the SSS didn't have a 9.5 inch ring gear to turn either. could be wrong, probably am.
power to weight is a huge roll. drivetrain loss plays into this as well.
think of it like this. the camaro shares the same motor and trans, puts down more whp. whats different? the rear end. takes more power to turn the 14 bolt. now lets add 4wd, or awd to the table. even less power gets to the ground. even if 4wd is still not active there is still power being used to turn it, very little, but the added weight of the axles, transfer case, prop shaft, front diff and added wiring do add up.
take the lightest of the ecsb 6.2 trucks. 2wd. a couple of us have them. 13.5 with a tune and muffler. 13.4 with tune and intake and mine. no frills, no leather, no crew cabs. a purpose bought truck.
4wd's may put down the same power as the 2wd, but it shows the weight difference on the track. on average a stock weight lt 1/2 2wd with right at 5k lbs. you throw in an ltz or denali. the weight jumps another 800 - 1000 lbs. be it 4wd or awd. for every 100 lbs, there is a 10hp gain or loss. or so the old racing saying goes at least.
something else people think has a huge difference is wheel and tire combo's. 17's with all terrains weigh more than tahoe 20's with street tires. weigh them and see what im getting at. contact patch is wider on the 20's.
the tune plays HUGELY into how fast you run with a 6.2. you find someone who knows how to tune one, you're golden. dyno numbers don't mean a damn thing if you can't drive.
in short.
4wd/awd guys will need more power than us 2wd owners. this has been seen time and time again.
power to weight is a huge roll. drivetrain loss plays into this as well.
think of it like this. the camaro shares the same motor and trans, puts down more whp. whats different? the rear end. takes more power to turn the 14 bolt. now lets add 4wd, or awd to the table. even less power gets to the ground. even if 4wd is still not active there is still power being used to turn it, very little, but the added weight of the axles, transfer case, prop shaft, front diff and added wiring do add up.
take the lightest of the ecsb 6.2 trucks. 2wd. a couple of us have them. 13.5 with a tune and muffler. 13.4 with tune and intake and mine. no frills, no leather, no crew cabs. a purpose bought truck.
4wd's may put down the same power as the 2wd, but it shows the weight difference on the track. on average a stock weight lt 1/2 2wd with right at 5k lbs. you throw in an ltz or denali. the weight jumps another 800 - 1000 lbs. be it 4wd or awd. for every 100 lbs, there is a 10hp gain or loss. or so the old racing saying goes at least.
something else people think has a huge difference is wheel and tire combo's. 17's with all terrains weigh more than tahoe 20's with street tires. weigh them and see what im getting at. contact patch is wider on the 20's.
the tune plays HUGELY into how fast you run with a 6.2. you find someone who knows how to tune one, you're golden. dyno numbers don't mean a damn thing if you can't drive.
in short.
4wd/awd guys will need more power than us 2wd owners. this has been seen time and time again.
I agree
If your truck was a 4x4 just as it is you would be running 14.0 not 13.0
most everyone else would be 14.3 with there average tune
sss = 9.5
10-18-2011 | 08:34 PM
#6
TECH Fanatic
Joined: Jul 2006
Posts: 1,737
Likes: 0
From: K.C.
whats the weight of the sss?
i personally think people rely way too much on dyno numbers. you can make a number on the dyno. 9 times out of 10. you will not run that exact tune on the street due to load and air flow differences.
10-18-2011 | 08:44 PM
#7
comparisson to make,my old 4x4 6.0 vmax LT leather loaded radix 112 3.1 pulley headers mild cam,ran high 12s est.never ran 1/4 but raced buddy who did,thats how est, came about.(was an average/basic tune)
I just would expect a radix or whipple kit on a 6.2 crew 4x4,no other mods should run as well or out run the old 6.0
I assume these trucks are close on weight.with the advantage of the 6.2 6sp auto trans and bigger charger I feel they should perform .5 better in the 1/4 w/FI than they do
I just would expect a radix or whipple kit on a 6.2 crew 4x4,no other mods should run as well or out run the old 6.0
I assume these trucks are close on weight.with the advantage of the 6.2 6sp auto trans and bigger charger I feel they should perform .5 better in the 1/4 w/FI than they do
Last edited by gonzo 6.2; 10-18-2011 at 09:15 PM.
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10-18-2011 | 09:06 PM
#8
i would have hit it with enough spray to **** off mosquito's.
whats the weight of the sss?
i personally think people rely way too much on dyno numbers. you can make a number on the dyno. 9 times out of 10. you will not run that exact tune on the street due to load and air flow differences.
whats the weight of the sss?
i personally think people rely way too much on dyno numbers. you can make a number on the dyno. 9 times out of 10. you will not run that exact tune on the street due to load and air flow differences.
My guess is 5400LBs, HEY SSS guys what do your trucks weight?
