8AR engine internals look

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Sep 6, 2019 | 03:54 PM

#76

The G Man

Lexus Test Driver

Joined: Oct 2005

Posts: 8,804

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From: MA

Quote:

Originally Posted by skyshadow

You're drinking the Koolaid so nothing I say, even though it's fact, not opinion, will matter.

I agree, I have seen my share of German turbo chargers and intercoolers, they are much bigger. The NX was not build with performance in mind.

Jan 3, 2020 | 11:24 AM

#77

DarthLex

Pit Crew

Joined: Oct 2013

Posts: 164

Likes: 5

From: Texas

Quote:

Originally Posted by skyshadow

This is why water/meth injection was my very first mod and also a big reason I have not bought the OV tune. Why buy a tune that will turn up boost on a turbo that is maxed out at factory specs.

What has or what does the water/meth injection do and or add? Links please.

Jan 3, 2020 | 11:28 AM

#78

gompka

Racer

iTrader: (6)

Joined: Sep 2002

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From: Illinois

Quote:

Originally Posted by DarthLex

What has or what does the water/meth injection do and or add? Links please.

Lowers intake and cylinder temps, with the added bonus of keeping engine clean because of the methanol.

May 31, 2020 | 08:27 AM

#79

BMGS

Racer

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From: FL

Quote:

Originally Posted by skyshadow

IAT's get pretty high when you start pushing the motor. Last time was I at the track the radiator was heat soaking the intake air quite a bit. My water meth system would bring it back down about 50 degrees but it would still be hot

Where is best place to mount the nozzle on this engine?

Jun 1, 2020 | 09:33 AM

#80

skyshadow

Thread Starter

Lead Lap

Joined: Mar 2015

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From: America

http://www.alcohol-injection.com/en/...jection-nozzle

Jun 3, 2020 | 05:08 PM

#81

BMGS

Racer

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From: FL

Quote:

Originally Posted by skyshadow

http://www.alcohol-injection.com/en/...jection-nozzle

Thanks but that is pretty general. Where do most mount it on the 8AR-FTS engine? I usually like to mount right before the throttle body but I can't even see it on this engine since it seems the intercooler outlet is right in that area.

Jun 3, 2020 | 07:20 PM

#82

skyshadow

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Joined: Mar 2015

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From: America

I was originally injecting pre intercooler because it was easy. But the heat-soaked intercooler was just undoing all of the cooling effects. So I took things apart and injected post intercooler.

Jun 3, 2020 | 08:04 PM

#83

bob256k

Instructor

Joined: Mar 2018

Posts: 1,059

Likes: 275

From: California

Quote:

Originally Posted by skyshadow

I was originally injecting pre intercooler because it was easy. But the heat-soaked intercooler was just undoing all of the cooling effects. So I took things apart and injected post intercooler.

What kind of power gains do you see with your setup?

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Jun 4, 2020 | 05:52 AM

#84

BMGS

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From: FL

Quote:

Originally Posted by skyshadow

I was originally injecting pre intercooler because it was easy. But the heat-soaked intercooler was just undoing all of the cooling effects. So I took things apart and injected post intercooler.

Yeah makes sense, what did you have to take apart?

I still have a couple years left on my warranty but definitely want to be ready. There is a ton of room in my GS200 engine bay for this. We have an NX also but I don't think my wife needs any extra boost in power, although I do like WI for its cleaning effects alone.

Jun 4, 2020 | 12:46 PM

#85

skyshadow

Thread Starter

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Joined: Mar 2015

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From: America

I did not dyno it so I can't show a HP change. I can tell you that it changed my 1/4 mile time from 16.1 seconds to 15.2 seconds on the same night. Did a run without (16.1) then turned it on (15.2). I have a thread I posted about it showing slips and everything. I was injecting using a Devil's Own progressive system with a DO3 nozzle.

Jun 4, 2020 | 10:36 PM

#86

bob256k

Instructor

Joined: Mar 2018

Posts: 1,059

Likes: 275

From: California

Dang l, that sounds about right. A guy in the 4GS forum has a S/C'ed gs350 and IIRC he gained 60 hp from water meth injection alone after supercharging . Water meth injection and any sort of boost go together like cookies and milk. Plus it cleans the engine!

Just stopping by as my 350 is sidelined for a part and I have a NX300 rental...