TRD Supercharger (1 Viewer)

[macgyverFJ62]

I am restarting this thread because I believe for the first part before we got into forced induction engines, I knew what I was talking about and the thread contained very good info. Now i did some research on forced induction engines and found like most of you said I had the theory down but I just had it ass backwards. When it comes to performance again correct me I may still be wrong but this is the idea i picked up reading through all this info. Generally speaking forced induction engines with lower compression and high boost will perform better than ones with higher compression and low boost. Also supercharger are not all negative when it comes to wear and tear on an engine. Certain applications can make an engine more efficient along with what raventai said like for example if i was constantly driving in situations where say I was revved up to 4000 the sc would allow me to drive through that same area while at maybe 2000 rpms. Thus saving gas and workload(Hypothetical numbers). At the same time a sc will still add extra wear and tear on the engine and drivetrain in other situations and consume more gas than it would normally take. Does this lead to a shorter lifespan than a naturally aspirated 1fz-fe? What are your guys' thoughts? Doug seemed to know alot about this head issue but I still am going to ask this original question. Is the trd supercharger on a stock 1fz-fe hard on the head? If so is it because it is aluminum on an iron block as opposed to an iron head on iron block or is it not really an issue once you've replaced the original headgasket? And by the way I was right about one thing: BMW's run very high compression but that is because the are direct injected and don't use superchargers or turbochargers

 

[landtank]

Does this lead to a shorter lifespan than a naturally aspirated 1fz-fe? What are your guys' thoughts?

You're MacGyver, hook up a Remington hair dryer and let us know

 

[cruiserdan]

LOL!...

 

[Mikey]

stop being mean guys

 

[Trunk Monkey]

if i was constantly driving in situations where say I was revved up to 4000 the sc would allow me to drive through that same area while at maybe 2000 rpms. Thus saving gas and workload

Not necessarily the case. This was the cause of my overheating this past summer. Going up the same road twice (steep, slow grade), once using boost to maintain speed and the second time using gears. Using boost my temp rose quickly, using the tranny the temp never moved. Same conditions, same truck.

consume more gas than it would normally take

Most report no change in gas mileage pre and post supercharger. A few have seen a slight increase as a result of maintenance they performed when installing the supercharger. It also depends entirely on how you drive it and how much right foot you use. Your fuel EXPENSE will definitely go up as you have to purchase higher octane.

Is the trd supercharger on a stock 1fz-fe harder on the head because it is aluminum on an iron block as opposed to an iron head on iron block or is it not really an issue once you've replaced the original headgasket?

Again, you're stating an absolute here. Who says the supercharger is hard on the head? It may compromise a weak head gasket with higher compression. But we've also seen headgaskets blow for a large variety of other reasons. The iron block/aluminum head issue is not necessarily supercharger dependant or related in regards to the head gasket. Dan came up with the interesting thought that it may be more related to climate. He pointed out that we don't hear a lot about the HG issue from our friends in OZ or Africa.

 

[Beowulf]

Dan came up with the interesting thought that it may be more related to climate. He pointed out that we don't hear a lot about the HG issue from our friends in OZ or Africa.

It has been postulated more than once (and I tend to agree) that the EGR system may be the culprit. There is no way it can be climate because of where we've had problems in the US. Basically all over. Chicago, Idaho (cold), Phoenix, Albuquerque, (dry and hot), and everywhere in between.

I do not believe they get 1FZ-FEs with EGR systems in OZ or Africa.

-B-

 

[Ting]

time...

 

[CJF]

Is the trd supercharger on a stock 1fz-fe harder on the head because it is aluminum on an iron block as opposed to an iron head on iron block or is it not really an issue once you've replaced the original headgasket?

Again, you're stating an absolute here. Who says the supercharger is hard on the head?

I, for one, am reading his quote as asking whether it is, rather than stating that it is.

Curtis

 

[Trunk Monkey]

I guess I would see that simply phrased as "is the supercharger hard on the head?" without the because clause. But this is tech, not semantics, sorry.

B, I agree with what you're saying but I've got to think that the differences in heat expansion/contraction of aluminum and iron in cold temperatures can't help the situation.

 

[Romer]

BTW - I was just on the phone with cruiserdan ordering parts for my gear change. I tried to order an Iron head and he couldn't find one in the Toyota database

 

[cruiserdan]

That is not accurate. I didn't bother to look.........

 

[macgyverFJ62]

Okay so what kind of boost are you guys running with this trd supercharger?
How much extra horsepower does the trd sc produce?

 

[cruiserdan]

My boost gauge shows 5.5-6 lbs at full load. When I drop to my 3.0 inch pulley the boost comes up ~1.5 lbs.

The most often stated peak HP is ~285 and torque at ~385 lb-ft

Maximum HP gain ~110 and torque ~160 lb-ft


(assumes original pulley)

 

[Scamper]

It has been postulated more than once (and I tend to agree) that the EGR system may be the culprit. There is no way it can be climate because of where we've had problems in the US. Basically all over. Chicago, Idaho (cold), Phoenix, Albuquerque, (dry and hot), and everywhere in between.

I do not believe they get 1FZ-FEs with EGR systems in OZ or Africa.

-B-

Okay, -B- and Dan: This rings true to me. But how can I remove my EGR to be OZ spec? It's not throwing any CELs, but heck, why not remove it if it doesn't help anything, but may hurt things. On other cars I've owned, when I had an old EGR valve replaced, the car ran much smoother/better. Here in NJ, they don't even know what an EGR looks like, they just check the emissions. If the emissions are okay, they'll let it thru.

\sorry for the hijack

 

[cruiserdan]

I do not have access to the OZ books. My JDM book shows EGR on the 1FZ. I would imagine that if the EGR is really not there, the ECM would also have to be different. I have tried in vain several times to get my sandwich clamps on an OZ-spec fiche but I have failed miserably....

 

[macgyverFJ62]

How much horsepower is it producing? I'm just curious. I'm thinking of crossing over tothe dark side.

 

[cruiserdan]

How much horsepower is it producing? I'm just curious. I'm thinking of crossing over tothe dark side.

I edited post #13 to include that information, probably at the same time you re-asked the question. I forgot to put it in in the first place.

 

[macgyverFJ62]

How much horsepower does it take to turn the blower? Is the trd the most efficient supercharger on the market for the 1fz-fe?

 

[cruiserdan]

I have a number in the back of my head that says ~30hp, I have nothing to back that up with. AFIK the Eaton M90 is very well matched to a 1FZ. The HP numbers noted are "net" so they reflect the output after the blower has been fed it's share.

 

[IdahoDoug]

Macgyver,

I'd like to commend you on having the courage and character to basically restart this discussion with little fanfare and demonstrate your ability to move on even when things got mean spirited. In all the years of forums and their inevitable rumbles now and again I have never seen that happen versus the traditional "I'm outta here" endings. It's something I value in the friends I choose in real life, so nice to see here in forum-land. Cheers.

DougM