Re-Installing My Supercharger

[Torspd]

Yup. I am with Gadget. When is the last time you checked, or cleaned your air filter?

I had a really clogged one once, when mine was rear mounted. Was a pig off of the line and through acceleration. Wouldn't even hit boost, and I had a 8 psi spring in there. Pulled the air filter snorkel off of the turbo and bam! Truck ran like a champ!

The filter was horribly clogged.

 

[iniazy]

I really have not heard of a problem like that with the supercharger. If they start to slip internally they self destruct pretty fast.

I would suspect you have a problem in your belt drive after you rule out a clogged air filter.

G

I guess I need to check my air filter, it's been a while since I last cleaned it.

Yup. I am with Gadget. When is the last time you checked, or cleaned your air filter?

I had a really clogged one once, when mine was rear mounted. Was a pig off of the line and through acceleration. Wouldn't even hit boost, and I had a 8 psi spring in there. Pulled the air filter snorkel off of the turbo and bam! Truck ran like a champ!

The filter was horribly clogged.

There's bad news. I cracked a piston finally. Last night when I took the car for a wot run it knocked bad because the low boost took the fuel map to places not previously tuned properly making it a little lean, and since I drove back the engine never came back to normal. It's blowing out oil vapor like crazy, and lost lots of power. A round trip to work blew out almost a half a quart. I work 60 miles away.

Time to rebuild my old engine.

 

[Gadget]

Maybe your problem was with your MAP sensor.

 

[iniazy]

Maybe your problem was with your MAP sensor.

I have a boost gauge along with the map sensor, and the two are consistent in their reading, and my but dyno concurs. So I think map sensor is fine.

 

[Torspd]

Have you checked the air filter yet?

 

[iniazy]

Not yet. Filter needs a few hours to clean up so I'm waiting for my Miata to come out of service so I can have another car.

 

[iniazy]

I checked the air filter, it was dirty. Really dirty. I cleaned it up properly and oiled it, and checked with my mouth to see the difference in flow, and it made a big difference.

After cleaning it I also removed that ugly 3" joint box that came from Alpine, which was probably adding a lot of air flow restriction, and just connected everything through normal 3" silicone couplers, and now I feel the engine really powerful, even while running with only five good pistons! I wish I did that before I cracked the piston. The car feels so strong I can hardly believe there's a cracked piston, if it weren't for the jerkiness when I stop while on Drive in a traffic light, or if it weren't for all the oil that's being consumed/blown out of the crank case breather.

 

[Torspd]

Crazy what a little "restriction" will do huh?

 

[Torspd]

@iniazy , which 1GR vehicles over there have the 5 speed transmission?

 

[iniazy]

@iniazy , which 1GR vehicles over there have the 5 speed transmission?

1. Fortuner 2006-2015 Single VVT
2. Land cruiser LC200 2008-2011 single VVT and 2012-present dual VVT
3. Land cruiser 70 series 2010-present single VVT

 

[Torspd]

Awesome! Thanks!

 

[NHXRUNNER]

a

Awesome! Thanks!

Are you thinking what I'm thinking? 5spd swap from overseas?

 

[Torspd]

Not for me, but thought about it for years. Brought it up many a time. Got another thread going where the topic is being discussed.

Subsequently though, yes. The R154 is a beast of a trans. The R155, I am not so sure of. I am curious what the bolt patter of each of those transmissions looks like sided by side. Without the bellhousings attached.

 

[Torspd]

@NHXRUNNER , there is also this >>>

http://www.suprastore.com/xatsu1gr2gr3.html

 

[iniazy]

Not for me, but thought about it for years. Brought it up many a time. Got another thread going where the topic is being discussed.

Subsequently though, yes. The R154 is a beast of a trans. The R155, I am not so sure of. I am curious what the bolt patter of each of those transmissions looks like sided by side. Without the bellhousings attached.

I think they should have identical bolt patterns. I think the differences are in gear ratios only.

 

[Torspd]

You wouldn't happen to have any pictures of the 5 speed transmission without the bellhousing attached, would you?

 

[iniazy]

You wouldn't happen to have any pictures of the 5 speed transmission without the bellhousing attached, would you?

I'll try to find something.

One thing I know, the 70 series Land cruiser five speed is probably very different than the one in a fortuner and LC200. The 70 series have completely different ratio gears, geared for heavy towing rather than smooth driving. Also, I saw the bell housing and it seems very long, seems much longer than the one in the fortuner. The transfer case also is different, it is old school gear driven, rather than chain driven as in the fortuner and LC200, with a different shifting pattern and really hard to engage compared to the chain driven one.

 

[Torspd]

Hmm. Let's stick the the Fortruner one then. Seems closest.

 

[iniazy]

I'm so frustrated with my supercharger. I'm continuing to lose boost by the day, now I'm NA-close 3 PSI only! I thought it was the belt, so I just replaced that with a one that fits very tight, but it's still really down in boost. What's going on?

Only possible thing is my rotrex supercharger is losing efficiency. But no one ever had that happen to them, according to my research. The rotrex always just breaks, never seen any one reporting loss of efficiency.

I want to buy a replacement, but I'm worried it would turn out from something else, and $2500 is not pocket change.

Any suggestions?

 

[NHXRUNNER]

Send it to Stiegemeier for a rebuild. Should be way cheaper than an entirely new unit.