Your budget is perfect for a Mallet supercharger. Should get you in the 13's for 1320 et. I have a Trifecta tune and truck runs mid 14's 1320.

 

Was looking more for turbo set up but most shops say there not sure the v6 vvt can handle it

 

Pretty much every engine can handle 6-10psi of *unrestricted* boost in absence of knock. The entire rotating assembly experiences 3 times more stress from the sudden changing of direction of the piston and conrod at tdc and bdc than from combustion. The biggest issue is dialing in a tune that wont knock.

For a given engine torque the turbo will have to push less air vs a supercharger which has to pump even more air to make up for its own parasitic losses. Turbocharging is therefore non-trivially less prone to pre-ignition when trying to achieve a given quantity of torque.

All that being said, a turbo build will be more expensive, more mechanically complex, more work, and arguably harder to tune.

The biggest problem with this truck is the integrated header (exhaust manifold is cast into the head). It is perfectly designed for the stock airflow, but will be the biggest barrier to achieving really big gains. At a certain point it's going to choke, scavenging is going to go to hell, EGTs are going to skyrocket and you just wont be able to push the engine for any more boost.

And then there is the issue of our trans, I wouldn't try to push more than 325-350 lb.ft. of torque through it anyway. While I can't be positive, just looking at the mallet dyno it's pretty obvious that's what they decided was the most the 8 speed could take. A roots blower typically has more of a bell curve than that.

 

I have the Mallett setup and I haven't taken it to the dragstrip, but it is damn fast vs the stock engine!!

 

You should do a **** load more research before you use your tongue in someone else’s mouth.
More specifically, Mallet’s numbers are what they are based soley on what GM authorized to keep the factory warranty intact.

 

I think it's painfully obvious that I was making an inference and not quoting anything.

I said this is what I think and why. All you have to do is point out why my 'why' is wrong, there's no need to get aggressive.

On the other hand I have no idea where you are getting your info.

 

No aggression at all.

Just don’t like anyone that drops another’s name regarding anything on assumption.

Very little reading in this very section straight from the horses mouth will thoroughly educate you. And if you have any questions, Chuck or Ben are pretty quick to answer any you can fire at them.

 

It's literally Mallet's dyno I'm looking at combined with the fact I've read on here before that Mallet had special knowledge from GM about the transmission's limit that caused them not to push the engine as hard as they could in certain areas. I basically have to use their name to make this argument.

 

.......And I see you deleted all “inferred” language including the name Mallett.

 

my last edit was 3 hours before your comment....

That being said, almost all of my comments on this forum are edited. I just kind of get an idea on paper and refine it as I go. I'm not particularly committed to my thoughts at any one time and try to improve them as I think it through.

 

When you delete what you wrote, you continue to argue a point you speak with egg on your face.
I’m not going to continue to debate ethics,assumptions and or what you did or didn’t read.
All I know is what I wrote to be direct from Mallett. Nowhere have I read,or heard directly from them that the 8 speed transmission hamstringed them when designing their supercharger.
If you read Chucks last posts you’ll read that everything is capable of 9 psi without trouble. This system runs 7.5-7.8.

 

When you delete what you wrote, you continue to argue a point you speak with egg on your face.

What does this mean?

 

I think I see the confusion now.

- And then there is the issue of our trans, I wouldn't try to push more than 350 lb.ft. of torque through it anyway. Just looking at the mallet dyno it's pretty obvious that's what they decided was the most the 8 speed could take. A roots blower typically has a more downward sloping curve than that.
+ And then there is the issue of our trans, I wouldn't try to push more than 325-350 lb.ft. of torque through it anyway. While I can't be positive, just looking at the mallet dyno it's pretty obvious that's what they decided was the most the 8 speed could take. A roots blower typically has more of a bell curve than that.

It took me 4 minutes to go from the negative to the plus. Obviously I agree with you that I should have made it more clear that it was my own thoughts, because I did (although admittedly, even the first post seems obviously to be inference but I had anticipated that some people might find it confusing and cleaned it up)... 3 hours before you complained about it

P.S. I edited this post twice because my first 2 (now it's 3) ((now it's 4)) thoughts were wrong, I like this thought now. Until I change my mind.

((But I get it, I'm weird I can only really be critical of my thoughts once I put them down, you might think: "well why doesn't he just think it out first?" That just doesn't work for me. So apologies for the confusion)) (((I wonder why it took 4 or was it 5 at this point? edits for the empathy to kick in?)))((((Who wants a beer?))))

 

One thing I hate about this form of communicating is the absence of face to face reading ones emotions. And my style of writing comes from a militant life. Unfiltered and blunt.
These forums have so many people with nothing more than the desire to share and learn information. Being an older dude I love it. Then there are the few assholes that get joy in talking out their ass and pissing people off. Those that fit into the latter group anger me. You do not fit into that group. Me expressing anger would likely get me suspended or tossed. Especially in a biased forum like Camaro5.
I would debate you on the strength of our 8 speed tranny. I think it’s as bulletproof as you’ll get short of a turbo 400 or a Muncie. As fas as it being problematic, I’ll be on a high soap box preaching that it is a piece of ****.

 

Well, I found the post I was thinking of talking about how Mallett 'detuned' the engine in certain areas to keep it within limits. However it doesn't actually say it was due to the transmission or any particular reason for that matter.

I think I might have filled that part in based on speculation over on the Camero forums about the torque crossover point where they start putting in the 8L90 instead of the 8l45 (there's no vehicle with the 8l45 over 295lb-ft and vehicles with the 8l90 have torque as low as 383 lb-ft).

So yeah, It's more speculation than anything else. Whoops.

 

All the "safe" parameters for engine and trans are closely guarded secrets so I won't get into that. I can say that our design philosophy was to deliver the best driving experience within those "safe" parameters and our specific supercharger package is the answer.

As far as max hp from the V6... Our green truck makes 740 wheel.

 

740!!!! Holy HP batman! Did you change any other driveline components? Is there a build thread on that where I can catch up on the details?

And to think, I was only wishing for 600 in mine.

 

Nevermind, think I found it.


https://www.mallettcars.com/mallet-cars-at-sema-2015/

The Mallett Performance Cars supercharged 2015 Chevy Colorado will be in Magnuson’s booth

Powertrain and Performance

2016 Cadillac ATSV 3.6L V6
Engine Block
Forged Crank
Titanium Connecting Rods
Forged Pistons


So that's the LF4 hooked up to an 8l90 in that Colorado?

That's pretty sweet but that leaves us no closer to answering the question.

This is the part where I go on a long rant about how little (meaningful, technical) information tuners are willing share and how there's no spirit of collaboration any more and I yearn for the good 'ole days when former engineers would share inside info on how to drill out the valve body of your transmission for faster, crisper shifts (without ever making a dollar for it, https://www.tccoa.com/articles/tranny/transmission/index.shtml can you imagine ever finding this much inside info on a modern transmission?) and how most automotive enthusiasts today are basically just slightly richer consumers that can barely turn a wrench and neoliberalism is killing the spirit of america and blah blah blah...

I get it, can't spill the secret sauce on a platform so small.

 

That's pretty sweet but that leaves us no closer to answering the question.

This is the part where I go on a long rant about how little (meaningful, technical) information tuners are willing share

We do have our secrets but we're not unwilling to share helpful information. We just don't have the information you think we have. We have a long series of parameters to stay within in order to satisfy GM's internal validation procedures. It's way too complex to give a simple answer of where you start failing components. Obviously 740hp at the wheels is pretty far outside the safe zone, but he did ask about max hp...

Guys all I was wondering is if it's possible make a stock truck without an engine swap into a decent street legal drag car we dont need schue here..only said turbos cause I'm a turbo guy at heart
..I know it's possible cause I belive ford makes a turbo v6 for f150

I think our supercharger is a good benchmark because it's as fast as you can get with stock safety. You start looking at swaps and you'll immediately go way outside the $15k range. So for 10-15k, the question is how far you're willing to venture into the danger zone.

 

Guys all I was wondering is if it's possible make a stock truck without an engine swap into a decent street legal drag car we dont need schue here..only said turbos cause I'm a turbo guy at heart
..I know it's possible cause I belive ford makes a turbo v6 for f150

 

Guys all I was wondering is if it's possible make a stock truck without an engine swap into a decent street legal drag car we dont need schue here..only said turbos cause I'm a turbo guy at heart
..I know it's possible cause I belive ford makes a turbo v6 for f150

Yup. . My brother is now a Ford guy and has a 2015 F-150 he bought new.I t has the 3.5L twin turbo and goes pretty good for stock and a FS truck. He has to run premium in it all the time in order for it to perform the best. Otherwise it is kind of slow.
The biggest issue is the gearing. At 70 MPH it's barely doing 1500 RPM if that. So turbo lag is 1 to 2 seconds if he kicks it down to passing gear.
That may be a point to key in on. I think the Colorado would do well with a 3.73 rear axle change. Someone here posted a gear change not long ago. The stock 3.42 is fine for MPG and ok for decent street acceleration. But 3.73 would do better.

 

To the op..

Very sorry for hyjacking your thread.

 

Well to get things back on track here.

The problem is very few have done much engine work here because of the unknowns and the expense. It is not like a LT or LS as you already know.

Then not all 3.6 engines are equal either.

Mallet is correct in GM is not alway specific on engines and parts today. Engine managment systems tend to also mask actual strength. The Ecotec is the only line I know GM shared a strength Matrix on how much each part on each engine code could take. Shame they did not do that here.

The best recommendation is to keep looking for a tuner or work with a tuner with 3.6 experience. Mallet is very deep in GM know.edge as is Hutter racing engines. May even call Lingenfelter too.

The one other area you can start too is to compare the ATSV TT 3.6 as it is a much different engine as what is in our truck. It also uses the other 8 speed built for high Torque. GM has two levels of 8 speeds and our truck have the lesser one.

Here is info on the LF4 and there is more info out there.

http://gmauthority.com/blog/gm/gm-engines/lf4/

A consideration may be to find a LF4 and swap it then tune it. Not cheap either but a good way to get all the stronger parts already tuned for a Turbo. Just an idea where to start.

Lingenfelter built a twin turbo LS Sonoma a while back. It was stock looking with AWD. Yet it was street legal and was able to run 9’s. It was a daily driver. He did have issues in the Tranny as it needed a sump. It would suck air at launch and blow.

I think it was road tested by Car and Driver and they were shocked. It was totaled in a drag race in Misssissippi after it was sold after Johns death. He broke a lot of parts but had a true sleeper truck.

 

Do you have anyone out on the east coast that installs your superchargers? I live on the pa/md boarder...only like turbos because they look cooler and function more efficiently

 

Yes Im sure we can find an installer in your area. We will look into it for you.

 

Also how much horsepower do you think is necessary for let's say a decent drag strip timw... not talking like zL1 time but decent for truck

 

We offer 100 hp with our current base Mallett Supercharger. We ran our 2015 Supercharged Colorado on a local drag strip. We ran 8.7 ish spinning stock tires on 1/8 th track

We are in the process of developing a next level setup with more horsepower. If you are interested call Chuck 216-905-0029 or email chuck@mallettcars.com.