Informal: 04 TB 4.2 vs. 06 EV 5.3 (Round 2)

06Envoy

Original poster
Member
Dec 4, 2011
419
Because I own two of these and I mod them somewhat, every once in a while I race them against each other just to see what happens.

Some of you may remember ROUND 1 from last November. But if not, I'll repost it quickly.
So I dragged out my wife and kids last night, gave each of the kids a FRS radio and arranged a little informal race from 0 to 100(kph)(wanted to keep it legal and not set a bad example to my 12yr old boy who wants to start racing his gokart, sled, quad, dunebuggy...everything he owns....)

Here are the vehicle specifics.
Each of the vehicles is the extended length so weight should be close to each other. Engine weight being different of coarse.
The Trailblazer has the I6 4.2 with a PCM4L tune with 100% TM reduction and a CAI.
The Envoy has an all stock 5.3l.
UPDATE: Both are 4x4.
UPDATE: Both have a final gear ratio of GU6 3.42 and both have the G80.

In my mind the 5.3l should win hands over...

3...2...1...GO! GO! GO!!!!!!




To my surprise the I6 kept up with the v8 the entire time.
The Envoy won, but just barely.
I was surprised about that.



If anyone with a 4.2 is wondering about getting a tune or CAI, then wonder no more. It will keep up with a stock 5.3l.
I wonder if it's the 0% TM that makes the difference, IDK.

I've already ordered a PCM4L tune+Autocal and a K&N CAI for the Envoy.
I will rerun the informal race after those get installed.
I'm fully expecting a different result next time....

Since that post, I've done a thing or two to my Envoy.
I was curious to see what if anything those mods would have done for me.
So Tonight I gathered up the family again and went out for ROUND 2!

Here are the vehicle specifics.
Each of the vehicles is the extended length so weight should be close to each other. Engine weight being different of coarse.
The Trailblazer has the I6 4.2 with a PCM4L tune with 100% TM reduction and a CAI.
The Envoy has the V8 5.3 with a PCM4L tune with 100% TM reduction, a CAI and a PCM4L Efan kit installed.
Both are 4x4.
Both have a final gear ratio of GU6 3.42 and both have the G80.

In my mind the 5.3l should win hands over...

3...2...1...GO! GO! GO!!!!!!


To my delight the V8 smoked the I6 the entire time. Every race, Each Direction, Drivers Swapped.
The Envoy not just won, but beat the I6 by many car lengths.
I was very very pleased about that.

This is how I imagined the 5.3l should be. :thumbsup:

I think Round 3 won't occur until both trucks have thier exhaust installed.
I've been youtubing for exhaust sounds for the 4.2 and the 5.3.
Exhaust noise is such a personal choice, BUT
I think I've settled on Borla Cat Back for her 4.2 and
Stainless Works True Dual LongTube Headers with cats and the Stainless Works True Dual X-pipe cat back for my 5.3.
I have to wait another month or two for the money tree to grow back though.
I can't wait! :wootwoot:
 

Jkust

Member
Dec 4, 2011
946
06Envoy said:
... should win hands over...


Is that Canadian for 'hands down'?

I'd love to see this type of test while towing say a 4000lb trailer. I wonder how that would turn out?
 

STLtrailbSS

Member
Dec 4, 2011
1,617
Round 3 Vs StltrailbSS :biggrin:
 

06Envoy

Original poster
Member
Dec 4, 2011
419
Jkust said:
Is that Canadian for 'hands down'?
It's whatever you want it to be...:coffee:

Jkust said:
I'd love to see this type of test while towing say a 4000lb trailer. I wonder how that would turn out?
Me too. But I only have one trailer that big. Actually, it would be difficult for me to line up two identical trailers with identical weights on them. I can get a couple car carriers and load up some small cars on them, but I wouldn't be able to verify the weights with any accuracy.
I'm open to suggestions though.
I wouldn't mind seeing what happens.

gsf1200m said:
Let's see a sweet video of round 3.
No videos! On purpose! Street racing on our highways is not particularly legal.
Even if it is, I don't want to be the guy who tests that theory...:wink:

STLtrailbSS said:
Round 3 Vs StltrailbSS :biggrin:
Uhmmmm, no.
I know better. :biggrin:
 

ScarabEpic22

Member
Nov 20, 2011
728
Ha yea not surprising at all, I can easily see an I6 + tune + CAI keeping up with a stock 5.3. But throw in a tune + CAI + efans, thats probably ([15-20] + 5 + 10 =) 30-35rwhp minimum plus 1-3mpg over a stock 5.3.

TM makes a HUGE difference on the I6s especially, the V8s it helps a ton but not nearly as much IMO.
 

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