NewB here looking for info and saying hello!

[Black02]

Hello everyone.

Im so glad I found this site! Great info.

I just bought a 2002 runner SR5 sport edition supercharged. Black on grey leather. 128000 miles.
I fricken love it!
Yes the motor pings if floored or going up slight inclines. I have read that its
due to fuel starvation?

Questions...
Does the 7th injector kit REALLY solve this issue and give me more power/MPG? Is it worth the 1000 bucks?
I wont do any major offroading, mainly camping and job sites, so Im thinking of the 300 dollar "puck" 3" lift with 890's here BEST SELLER! 3" Lift w/spacers & rear OME coils - Toytec Lifts: Toyota Lift Kits: FJ Cruiser Lift Kits, Tacoma Lift Kits, Tundra Lift Kits, 4 Runner Lift Kits, Sequoia Lift Kits, Toyota Truck Lift Kits
After that I will throw on some 31x10.5 mud terrains.

Thoughts and info??

Thanks all...:girl:

 

[JohnsD90]

It is almost necessary if the vehicle is automatic, but i hear it helps power and mpg too. I would save up for it if i was you.

 

[Black02]

Yes, it is an automatic!

 

[t4r505]

it really doesn't matter if you have an automatic or a standard, either way most people recommend getting the 7th injector.

The 7th injector should fix the ping while giving you more power by getting the most out of the supercharger. It won't help MPG's any though.

 

[Ron Helmuth]

pics or it is just an illusion

Yes I do believe the URD injector kit and upgrades are almost a necessity if you want the engine to last. Essentially you are running "lean" anytime the S/C kicks in but I am no expert on this just know what I have read.

No photo host is needed to upload a photo so we want to see this 02 beauty you bought. Use that section below "Manage Attachments" then Browse your hard drive and click on Upload.

Welcome newbie! Get out your wallet we will have you spending the boat money in no time whatsoever. If you're going to be underhood a lot then I highly recommend hood struts.

Practical and stylin' at the same time....here is a shot when we did our clutch flush-you won't have a clutch fluid reservoir but this is where the drivers side strut attaches.

 

[Black02]

Thank you all for the info.

I will plan on saving for the 7th injector kit and might as well get smaller pulley for more boost!

NOW...as for the simple lift I am looking at, any thoughts?

I will post up pix as I take them!
arty:

 

[Black02]

The 7th injector should fix the ping while giving you more power by getting the most out of the supercharger. It won't help MPG's any though.

So I will gain a smoother running motor, while maximizing my supercharger attributes. If it wont improve MPG, will it reduce it?

 

[RunningRick]

yes you will lose a bit of MPG you cant have it al,l power takes more fuel due to more air so you will lose some a bit on the mileage side power is a bitter sweet thing. I had a 05 srt4 with 550 hp and while in boost i could watch the fuel gauge dropping but while not in boost got 32 mpg on the highway

 

[Black02]

What do you mean I cant have it all!!!??? haha... I do understand that concept, but usually gaining some horses CAN gain you some MPGs do to less pedal action to move you. Thats just my thought.
How are you NOT in boost with a supercharger? I thought its always pushing boost, unlike a turbo that needs to spool up?

Anyone have any comments on the lift I chose? I want thr runner to be level as well, will this work out?

yes you will lose a bit of MPG you cant have it al,l power takes more fuel due to more air so you will lose some a bit on the mileage side power is a bitter sweet thing. I had a 05 srt4 with 550 hp and while in boost i could watch the fuel gauge dropping but while not in boost got 32 mpg on the highway

 

[cougar428]

What do you mean I cant have it all!!!??? haha... I do understand that concept, but usually gaining some horses CAN gain you some MPGs do to less pedal action to move you. Thats just my thought.
How are you NOT in boost with a supercharger? I thought its always pushing boost, unlike a turbo that needs to spool up?

Anyone have any comments on the lift I chose? I want thr runner to be level as well, will this work out?

i think he was talking about his neon getting good mpg while not in boost

 

[Black02]

i think he was talking about his neon getting good mpg while not in boost

I didnt even catch that! I am assuming that it had a turbo charger then.
:driving:

 

[RunningRick]

yes it was turbo charged very healthy turbo at that but that is niether here nor there. Ok so gas milage improvement with a supercharger is possible but you should have a better intake, headers and exhaust you will see some inprovements. but also you need to be turning at a lower rpm with the SC to limit the boost so lets take a 4.10 geared truck for example say you turn 3000 rpm at 75 mph well if you had 3.91 or 3.55 for example your rpm may be 2400 rpm cruising at the same speed this is how you will gain some mpg back. You can also run undrive pulleys as they are lighter and free up rotational weight. Its all about making the engine breath better but once you start compressing air into the cyclinders the game changes hopefully that will help

 

[SkidPalace]

Superchargers are not always in boost. Until they reach a certain engine rpm, the intake system is still in a vacuum state like a normal engine.
If your truck has a boost gauge you will see when it begins to make boost and how much. When it does, your engine will pump more fuel to try and keep the air/fuel ratio at ideal levels (stoichiometric).
The problem with our TRD supercharger kits is that they push enough air for the development of more power than the standard injectors (and fuel pump) can deliver to keep the ratios in the ideal levels. This results in fuel starvation, which can slowly kill an engine, or kill it fast if you drive it like you stole it.
Some setups tend to behave better than others. I am one of the lucky ones as I do not have a fuel kit on my truck, but I have been fairly knock and trouble free.

 

[Black02]

Well you are a lucky one then! Mine does have ping and starvation. Until I can afford the URD 7th injector kit, I drive it fairly easy. Besides, there is more power while using less throttle due to the issue, imho. I want to get a boost gauge and pillar mount, any suggestions?
:thanks:

Superchargers are not always in boost. Until they reach a certain engine rpm, the intake system is still in a vacuum state like a normal engine.
If your truck has a boost gauge you will see when it begins to make boost and how much. When it does, your engine will pump more fuel to try and keep the air/fuel ratio at ideal levels (stoichiometric).
The problem with our TRD supercharger kits is that they push enough air for the development of more power than the standard injectors (and fuel pump) can deliver to keep the ratios in the ideal levels. This results in fuel starvation, which can slowly kill an engine, or kill it fast if you drive it like you stole it.
Some setups tend to behave better than others. I am one of the lucky ones as I do not have a fuel kit on my truck, but I have been fairly knock and trouble free.

 

[Black02]

Would the "elbow" replacement and the air box mod be sufficient? Would a replacement muffler also work ok.
If you cant tell Im trying to keep costs down!

I definitely understand the gearing issues, by the way, how can I find out what my gearing is?

yes it was turbo charged very healthy turbo at that but that is niether here nor there. Ok so gas milage improvement with a supercharger is possible but you should have a better intake, headers and exhaust you will see some inprovements. but also you need to be turning at a lower rpm with the SC to limit the boost so lets take a 4.10 geared truck for example say you turn 3000 rpm at 75 mph well if you had 3.91 or 3.55 for example your rpm may be 2400 rpm cruising at the same speed this is how you will gain some mpg back. You can also run undrive pulleys as they are lighter and free up rotational weight. Its all about making the engine breath better but once you start compressing air into the cyclinders the game changes hopefully that will help

 

[SkidPalace]

cheap remedies

Taking off the elbow is free and easy, but keep in mind that the ping problem is indicative of too much air and not enough fuel. Increasing intake airflow could be adding to the ping problem.
Make sure your installation makes use of the "free FMU" mod. That means the fuel regulator is connected to the boost port of the SC rather than a Vac line. You can also check that your truck has colder plugs than stock. Unless your truck was serviced by someone who specializes in TRD supercharged setups, you probably have stock Denso or NGK plugs. Colder plugs pull more heat from the combustion area further limiting knock. I am running one step colder stock Denso copper plugs, the K20TR11s. Stock plugs are the K16TR11s. There are wildly varying opinions on plugs, with many people using iridium and platinum.
I chose copper because my problem is not severe and I had been running stock plugs on regular gas. When it came time to change my plugs, I simply searched for and found the K20s. If they had K22s in copper, I would have bought them. I think I paid $1.80 a piece for them.
Speaking of gas, make sure you are running super unleaded gas. Years ago when I decided to run regular gas to save money, I found that the truck's computer adjusted for the lower octane and eliminated the slight pinging I did get. I retrospect, I know that what happened was the knock sensors detected the knock and aggressively backed off the timing, preventing the knock, but also robbing me of power. I just got used to it and accepted it as normal. When I eventually went back to high octane and reset the computer, the lost power returned and stayed.
As far as exhaust, pushing air is not the problem here, getting fuel is. I don't feel a high flow exhaust will gain you anything in the ping column.
Finally, since your rig is getting on in miles, you may want to replace the fuel filter. I have read that they can get clogged over time even though Toyota claims it is a lifetime part. The key for our SCs is to get as high a fuel pressure as we can. A clogged filter could affect that. They are only like $15 down at the Zone.
Hopefully these cheap upgrades make your rig a little more drivable until you pop for the 7th injector.

 

[Black02]

Man your full of knowledge! Thank you for all the great info. I will wait to to an airbox mod until I can get rid of the pinging.

Taking off the elbow is free and easy, but keep in mind that the ping problem is indicative of too much air and not enough fuel. Increasing intake airflow could be adding to the ping problem.
Make sure your installation makes use of the "free FMU" mod. That means the fuel regulator is connected to the boost port of the SC rather than a Vac line. You can also check that your truck has colder plugs than stock. Unless your truck was serviced by someone who specializes in TRD supercharged setups, you probably have stock Denso or NGK plugs. Colder plugs pull more heat from the combustion area further limiting knock. I am running one step colder stock Denso copper plugs, the K20TR11s. Stock plugs are the K16TR11s. There are wildly varying opinions on plugs, with many people using iridium and platinum.
I chose copper because my problem is not severe and I had been running stock plugs on regular gas. When it came time to change my plugs, I simply searched for and found the K20s. If they had K22s in copper, I would have bought them. I think I paid $1.80 a piece for them.
Speaking of gas, make sure you are running super unleaded gas. Years ago when I decided to run regular gas to save money, I found that the truck's computer adjusted for the lower octane and eliminated the slight pinging I did get. I retrospect, I know that what happened was the knock sensors detected the knock and aggressively backed off the timing, preventing the knock, but also robbing me of power. I just got used to it and accepted it as normal. When I eventually went back to high octane and reset the computer, the lost power returned and stayed.
As far as exhaust, pushing air is not the problem here, getting fuel is. I don't feel a high flow exhaust will gain you anything in the ping column.
Finally, since your rig is getting on in miles, you may want to replace the fuel filter. I have read that they can get clogged over time even though Toyota claims it is a lifetime part. The key for our SCs is to get as high a fuel pressure as we can. A clogged filter could affect that. They are only like $15 down at the Zone.
Hopefully these cheap upgrades make your rig a little more drivable until you pop for the 7th injector.

 

[SkidPalace]

The vast majority of what I know about my 4Runner came from this site and YotaTech.
Keep reading and searching the archives and you can find the solution to almost any problem here.