TRD Supercharger On High Mileage Runner (MY Experience)

djskorch

New member
So I see this question posted quite often. In fact, I once was asking about it myself. The age old question

"I have XXX miles and want to supercharge my truck. Can I?"

As a note, this information is strictly MY personal experience. If you decide to supercharge your truck, thats your choice. If you blow up your engine, thats your problem. Again, this is simply MY experience.


I purchased my 4runner with 198,xxx miles about 2.5 years ago. Like most of you, one of the first things I started reading about that got me excited was the TRD supercharger. Comming from a toyota mr2, the 4runner felt slower than dirt.

After a few basic upgrades such as tires, trd exhaust, stereo ect. I came across a steal of a deal on a supercharger kit on CL. I paid a total of $550 shipped to my door for a 1st gen supercharger with everything needed to install.

I was a bit nervous due to so many people stating that a supercharger on a high mileage 5vz was a bad idea (as is the case with forced induction on any high mileage vehicle) however I decided to go for it.

The Facts:

I have now had my supercharger on for over 20,000 miles (Put it on at 205,xxx and am at 228,xxx currently).

I am in Idaho at around 2700 ft elevation.

I have no 7th injector kit and no supporting mods engine or transmission wise.

I have the stock 2.37" pulley which gets me around 7.5-8psi.

I run 2 step colder plugs than stock.

I run my truck pretty hard (full throttle pulls fairly often, offroading, "zipping" around town using the boost from the supercharger etc)

My truck was a 2 owner vehicle. Both were old couples who never drove it hard. I doubt it ever saw dirt before me. I also received a stack of service records when I bought it as well as have used amsoil full synthetic in all fluids since purchase.

The Verdict:

I (knock on wood) have had NO problems with anything thus far. No transmission slipping, no pinging, etc. As a note, I do have an egt gauge installed in the driver side manifold to keep an eye on temperature (I know not as good as a wideband but it was what I had on hand at the time) Before the supercharger, full throttle pulls to around 80 would show a peak of around 1100-1200 degrees F. After the supercharger install, Full throttle pulls to 80 show a peak of around 1100-1200 degrees F. Exactly the same. From what I have read (someone correct me if I am wrong) most engines can handle up to peaks of 1600 degrees F. The only time I have seen over 1200 is pulling a heavy trailer up a hill under boost and even then it was barely at 1400.

I feel that IF your truck has been taken care of, you should not hesitate to supercharge it if that is what you wish to do.

Again, take everything here as simply an opinion and personal experience.
I am not responsible for you or your vehicle.
 
Register to hide this ad
Great post. Thank you for sharing. I have been looking for a supercharger myself and have also been pricing replacement long blocks if thing go wrong. I feel like my truck at 207000 is tight and it runs as smooth as it did from the factory. I'm going to pull the trigger as well. One thing I am going to do is get a devils own methanol in injection kit just in case there is a issue with CA 91 octane. Thanks again for posting your experience.
 
Nice post. Thanks.

I agree with the verdict. It isn't the mileage that should scare people, but rather how much care it actually got in those miles. I've seen vehicles with 100k treated like crap and vehicles with 250k running great. It really is down to the maintenance.
 

Members online

Forum statistics

Threads
278,316
Messages
3,554,120
Members
248,016
Latest member
Advally Service

Trending content

Back
Top