I'm looking at a 99 cruiser with a TRD supercharger and I'm just wondering what kind of gas mileage I'd be gettin'. I know they get like 14 mpg stock. Any help would be appreciated.
MPG's with supercharger (1 Viewer)
- Thread starter senorscott
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Who cares? It's SUPERCHARGED!! I'd happily sacrifice double digit MPG's for a lot more HP and TORQUE!
It'll probably be horrible... I'd remove it and go back to stock... You can send me the unwanted supercharger...
Trunk Monkey
Moderator
All depends on how you drive.
Guy just posted in my 345/75/16 thread that he gets 15 with 4.88's and the same size tire. That is about 8 mpg better than any report i have ever seen with a supercharger. I would plan on 8-10 max
If you don't drive any different, you should see no noticeable difference. The physics of more air in will produce more power, requiring you to push the accelerator less for the same power and acceleration.
Of course, the people that are buying superchargers, aren't the type to pamper a ~350hp Cruiser.
But none of the rest of us would either.
Of course, the people that are buying superchargers, aren't the type to pamper a ~350hp Cruiser.
But none of the rest of us would either.
r2m
Richard
A little off topic, but: generally, without changing the cube's of an engine, most things you do to it will give you better gass mileage. Example, adding headers and a high flow intake, high energy ingnition, etc. Basically, the more efficent you can make your engine run, i.e. burn up every single molecule of gas and air, the more power AND better fuel economy you'll get. As stated above, as long as you don't keep your foot in it. (note, there are other factors too, to consider, but that's another thread)
So coming back to the supercharger, if you keep a light foot you should get good or perhaps better MPG than stock.
In theroy....
So coming back to the supercharger, if you keep a light foot you should get good or perhaps better MPG than stock.
In theroy....
Not so with superchargers. Parasitic drag from the pump and drive belt consumes energy. Yes, it produces more power, but at the expense of even more fuel.
Turbo efficiency allows a lower displacement, lower compression engine to operate with similar power/torque as a larger, higher compression engine. Mechanical losses, weight, and idle burn are reduced.
Trunk Monkey
Moderator
It was a 1-2mpg drop on my sc'd 80. Much worse if I drove it like I liked to.
I put a S/C on my 99 100 4 months ago, so I had the truck before and after... I have stock gearing and 35's as well as a roof rack and all kinds of other heavy crap on it. My mileage went from 13-15 to 12-13. I'm hoping to recoup a little with the gears.
That being said, these trucks are miserable with the stock 4.7L. I came from a 5.7L Tundra with a S/C and the LC is almost un-driveable without it, especially if you want to tow something. BUY IT!!!
You'll be happy, your friends will be jealous and it'll cost you an extra $2.00 a week for that wonderful feeling.
That being said, these trucks are miserable with the stock 4.7L. I came from a 5.7L Tundra with a S/C and the LC is almost un-driveable without it, especially if you want to tow something. BUY IT!!!
You'll be happy, your friends will be jealous and it'll cost you an extra $2.00 a week for that wonderful feeling.
Trunk Monkey
Moderator
And where'd you find a SC 4 months ago and does it have the LC ECU?
hoser
SILVER Star
I have a new TRD SC for some time now. Found it at a dealership. You don't need the LC TRD ECU, you can use a Unichip or other brand piggy back ECU. I just haven't decided yet. I have the 10 injector SC and will use it on my '98.... which for '98-'02, TRD originally had the 9 injector SC. The TRD ECU seems to be problematic actually.
If I ever get around to installing it, I'll do a write-up.
If I ever get around to installing it, I'll do a write-up.
I am getting 12-14 mpg fully loaded with a roof top tent. Going uphill weighing around 7,500 pounds is not a problem. Stock gears and 35's.
I installed it at 48,000 miles and I now have 175,xxx miles. Let me know if you have any questions. It's a 1999 as well.
I installed it at 48,000 miles and I now have 175,xxx miles. Let me know if you have any questions. It's a 1999 as well.
Trunk Monkey
Moderator
hoser
SILVER Star
I was going back and forth in my head about selling the LX. I think I've recently decided to keep it so I suppose I should install the SC.
Check on the Tundra forums. There are a lot of SC'd 4.7's--some people are saying the TRD piggyback does not maintain the A/F ratio well enough and is the root cause of the problem.
Check on the Tundra forums. There are a lot of SC'd 4.7's--some people are saying the TRD piggyback does not maintain the A/F ratio well enough and is the root cause of the problem.
Trunk Monkey
Moderator
It's the cast vs. forged manufacture of the i-Force motor vs. the Japanese made LC motor. Well, I guess the mix could cause the failure, but it's the cast parts that actually fail. Supposedly if Toyota had had some way to ensure that the SC's were only installed on Cruisers, they would have stayed available.
hoser
SILVER Star
I have heard that rumor and I would love to see documentation stating the LC has forged connecting rods. I have checked the parts catalog for both the 2002 Tundra and LC and they have the same replacement part number for the connecting rods. I would not think they would allow one cast rod to replace a forged rod or vice versa just for balancing reasons.
Trunk Monkey
Moderator
Good point. My source is a friend that works technical training for Toyota. Before working for corporate he turned wrenches at a toy dealership for years. He's had both engines apart. It begs the point of why does the Tundra get the "i-force" designation and the LC doesn't.
Take a video of some take offs. As well as outside sounds. I'd like to hear what a S/C'd 100 sounds like.
Puhlease
I'll see what I can do tomorrow.
The S/C was found on Ebay. I used a unichip piggyback computer with it.
I'm going to do some exhaust modifications once we get the new rear bumper done. Mike said I have to leave it as is to make sure the bumper clears the resonator and will fot everyones LC... not just my "special" one, lol...
