Decided to supercharge over a swappina to a Hemi

[ShadowsPapa]

or upshift quickly at 2,000 rpm’s.

Why such low RPM?
Are you striving to hit 25 mpg in a gasser?
It's more likely to detect needed torque and open up the high lift valve system. Hell, I don't even let my 4.0 run that darned slow. Not good for it.

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[LouisvEarlleJT]

Blink and all of a sudden there’s 8 pages of replies

 

[ShadowsPapa]

Thanks, I’ll have to practice on my next trip. I’m only towing 1000 lb trailer but I weighed it and I’m 7600 lb combined. I was running 5-6 gear in auto with 35’s and 4.10’s. Might have been a headwind. I’d love 37’s but don’t want to make things worse. 35’s have been enough for me so far.

Let it run where it's happy. Don't try to force lower RPMs - it's struggling to make power at lower RPM and is more likely to open the high lift valve side - and if it does at under 3,000, it's doing so at lower oil pressure.
The only real reason to manually shift is to prevent HUNTING -the constant down and upshifting it might do in hilly areas and such. Otherwise, running at higher RPM is actually better. Trying to stay in the lower 2,000s - not good. You will build more carbon, and run it harder that way. I don't give a rip if mine runs at 3,000 RPM when towing. My Chevy with a V8 did that, and it even hit 5,000 RPM now and then to make the hills. the people in the Chevy shop - they said "let it!"

 

[Flyin6]

Blink and all of a sudden there’s 8 pages of replies

Tell me about it!...

 

[ericw.]

Will be following, I would really like the V8 but still struggling with 30k+. If I could install either the Ripp or the Maggy for say 8k then drop it off at Liverious up the road for a tune. Might be the way to go.

Looking forward to seeing your install.

I know everyone has their own needs and driving factors behind their decisions... but for me at least, I'd just grit my teeth, close my eyes and throw cash at the V8 swap if I needed it.

Having more power than I need makes driving characteristics better when I only need half throttle or less to do everything I want. Over build it, deal with the pains short term and be happier in the long term.

Thankfully though, I have the diesel and it's just enough for what I need. I wouldn't mind tuning it but it's not necessary and not worth the headache while it's still under warranty.

 

[Flyin6]

I know everyone has their own needs and driving factors behind their decisions... but for me at least, I'd just grit my teeth, close my eyes and throw cash at the V8 swap if I needed it.

Having more power than I need makes driving characteristics better when I only need half throttle or less to do everything I want. Over build it, deal with the pains short term and be happier in the long term.

Thankfully though, I have the diesel and it's just enough for what I need. I wouldn't mind tuning it but it's not necessary and not worth the headache while it's still under warranty.

The supercharger is actually more than just a little more. I'm pretty sure that a Ripp supercharged Pentastar is safely making more power than the 5.7 Hemi. Most dynos show 370 or better rear wheel HP, and that is with big tires. with just 400ish HP on tap from the smaller hemi, I doubt it is making numbers like that. I, too, will be driving around at half throttle but likely using less fuel doing so.
I think that this supercharger option has been overshadowed by all the "Hemi-Hype," which I myself am guilty of listening to as well.

 

[ericw.]

The supercharger is actually more than just a little more. I'm pretty sure that a Ripp supercharged Pentastar is safely making more power than the 5.7 Hemi. Most dynos show 370 or better rear wheel HP, and that is with big tires. with just 400ish HP on tap from the smaller hemi, I doubt it is making numbers like that. I, too, will be driving around at half throttle but likely using less fuel doing so.
I think that this supercharger option has been overshadowed by all the "Hemi-Hype," which I myself am guilty of listening to as well.

Yeah but pushing a 3.6 just wouldn't be my personal choice. It's cool and I think you've put a lot of thought into what you intend to do. I'm confident that you'll be happy with the end result.

I'd just go for the V8 because the power numbers you're speaking of are baseline without forced induction, and you could turn it up from there if you wanted to. The ceiling is higher and the baseline power is good enough without strain.

 

[ShadowsPapa]

Yeah but pushing a 3.6 just wouldn't be my personal choice. It's cool and I think you've put a lot of thought into what you intend to do. I'm confident that you'll be happy with the end result.

I'd just go for the V8 because the power numbers you're speaking of are baseline without forced induction, and you could turn it up from there if you wanted to. The ceiling is higher and the baseline power is good enough without strain.

How much is it really being pushed? Seriously? Do these blow up on a regular basis with a SC in place? What about all of those running in cars with more radical tunes? Are they blowing on a regular basic.
Other companies boost even lighter-weight engines

 

[ericw.]

How much is it really being pushed? Seriously? Do these blow up on a regular bases with a SC in place? What about all of those running in cars with more radical tunes? Are they blowing on a regular basic.
Other companies boost even lighter-weight engines

I don't know the answer to any of those questions but generally speaking, pushing a motor harder is always going to have some reaction (every action has an equal and opposite reaction).

My sample size of 1 supercharged motor (which isn't mine) and 1 non-supercharged motor... I've only blown up the non-supercharged 3.6 so I'm biased and salty towards the 3.6. lol

 

[ChrisNLA]

How much is it really being pushed? Seriously? Do these blow up on a regular bases with a SC in place? What about all of those running in cars with more radical tunes? Are they blowing on a regular basic.
Other companies boost even lighter-weight engines

To be fair, I've been digging into this on and off, and I can't find a pile of windowed 3.6's with superchargers. It absolutely happens, but the consensus seems to be if you stay conservative (keep it half an atmosphere or less on boost) then things look....optimistic.

The folks racing V6 Challengers and Chargers are popping them at 10PSI and more after beating on them enough.

In a heavy ass truck, I'd stay pretty conservative on the tune and it seems like it would be fine.

I do know folks who have put better than 100K miles on supercharged V8 Camaros, but they are conservative tuned cars (not trying to get every HP) and they are not beat on daily.

 

[Stan H]

salty

I haven't heard that in years and years.

 

[ShadowsPapa]

I haven't heard that in years and years.

 

[ericw.]

I haven't heard that in years and years.

When I was still involved in the Audi clubs a few years ago, we would give the "most salty" award annually to whoever did the most complaining in the online group. lol, I don't think anyone that won the award ever showed up to accept it.

 

[AmosMoses]

I think that this supercharger option has been overshadowed by all the "Hemi-Hype," which I myself am guilty of listening to as well.

Its actually pretty common to put a V8 in a 6000 pound truck. The only hype is jt owners excited about 400 ftlbs of torque. Thats actually a cool idea.

 

[Stan H]

Here he is as an old man and still has a great voice fast forward to the lady part

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