General Supercharger Thread

why?

 

no loss in low end

 

You're totally right. It's kinda funny when you think of it this way: Boost is essentially a measure of restriction, so less restriction on intake equals more restriction (boost) haha

 

hows that? not sure how you would know with all your goodie add ons lol. im still on stock mag injectors and pump
cant be because of "equal length" if so i still have pipe to do that too

 

Let it flow...open it up!
Seems going from 200 cell cats to 400 may have increased pressure. Looks like I'll have to take a few runs and compare data.

 

An aside: I did 400 miles today pulling my enclosed trailer. It was one of three days a year that there isn’t much of a wind to speak of. 55-70 mph speed limit and a little more than 3000’ elevation change each way. This thing is a towing ANIMAL. I’m sure you guys all know that, but sometime I just have to say it out loud (or type it out loud…?). Pretty much locked in 5th the whole way home with a few spurts of 6th gear just to see if it would do it. Only regret is not adding boost sooner. Haha.

 

<scratching down notes to make sure I do it right>

 

I am the poster child for "measure of restriction"

stock intake
stock (TRD) exhaust
77mm pulley (Harrop)
11psi (sea level)

 

It’s weird I have the same setup except a less restrictive intake and I never see more than 8 or 9 psi. My peak boost didn’t really change from the 80mm to 77.5mm pulley. It just came on faster at lower rpm.

 

When I get into PE, I am generally @ 8psi. scary.

then, if I keep the pedal down, it climbs to 11psi quickly.
I've only done it once.

here's the rub....all my shit is working (knock on wood).
no engine codes
no leaks.
smooth hwy cruising

this, alone, makes me leery about adding more stuff.


I'll probably hold my position for the foreseeable future, as the truck is perfect for me right now.

and, truth be told, there ain't a whole lot of comparable options out there!

 

I support what Rey says, I wanted SPD system but had to do a custom because my headers, so my exhaust guy more or less duplicate the design but with 3" and some added touch.

There's no loss of low end, improved mpg by almost 10%, and with my racelogic v box it shows 0-60 improved by 2 tenths, and it sounds very un-truck-ish.

 

SPD downpipes neck down to 2-3/8" I.D. at the exit flange. Maybe that helps with the low end. I didn't notice any loss either.

 

That is how mine is too. It starts timing when you start going. You dont need to worry about reaction time.

 

same as i couldnt afford the SPD kit but i didnt do equal length and i went with Carven mufflers. maybe its just me with the combo of all the extra sound lol

 

I spent a little time looking at the numbers on draggy and noticed a few trends. You can clearly see the 1-2 shift unless your 0-60 time is under 3 seconds and all 4 tires are spinning @ViktorG .

Distance to 60 is about 235 feet for trucks that can go 0-60 in 4.5 seconds, 5.5 second trucks need another 30 feet, however, the newer model Tundra that ran a 5.49 0-60 needed another 24 feet to get to that speed. It also had to shift one more time.

@e30cabrio Click on your times to get more details about the run. What is the distance needed to get to 60 MPH with a 8 second time? Also, what is your 0-60 (1ft) time? Some folks who launch the vehicle really easy can se over a half a second difference. You need to do a few more runs to get some consistent numbers.

 

That makes more sense since they weren't measuring boost.

 

building race trucks are we? lol

 

HoneySeal - what did they charge you for the clean and coat?

 

Yeah, tell us more HoneySeal.

 

Have you been consistently getting 10% better mileage or was it just the first tank?

 

We are special................

The price depends on how much cleaning is needed, I keep my truck relatively clean, I power wash weekly in winter and had krown treated since new, but I was having surface rust showing on the frame and small parts, so that took almost full 5 days to do it, on avg they charge about $600 CAD per day, that gives you an idea.

If it's a super clean vehicle/new, it can be done in one day.

is that AI? it looks so nice yet so fake.

consistent, I hand calculate each tank, last long trip with trailer I had 11mpg, which blew me away as same trip before new exhaust I was only able to get 9.5-10mpg, it's a hilly area.

If it's empty, and I leave the transmission alone it'll get as high as 16mpg.

 

It looks awesome but as I am in Az, there is no salt on our roads so like 90% of my mods no need.....

Where do I sign up..

 

FINALLY broke into the 4s!

Harrop 77.5 pulley, DW650 and that SSS tune. Thanks Sniv!
35s and stock gears, 6400 pounds.

 

Yeah, seemed like a prime time to see what it would spit out for the username honeyseal.

 

I wish they would include temp and elevation in the dragy results.

 

Badass!! That's a healthy, fast time on those shoes and diet!! Woot woot!!

 

Mine seems to:

 

That is quick! What a brutal launch, you pulled over a G when you took off!!!

 

I see it now, hiding up there on some of them.