Fox Marketing ISF
10-03-12, 02:37 PM
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Fox Marketing ISF
Is anyone aware how they tuned their recent twin turbo beast?
https://www.facebook.com/foxmarketingcars?ref=stream
https://www.facebook.com/foxmarketingcars?ref=stream
10-03-12, 03:58 PM
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interesting...just browsed through their page. looks like a rear-mount kit? what're the references to their "previous is-f tt car" that some people are talking about? another failed attempt? who knows...hope not though!
10-03-12, 06:50 PM
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(not lecturing here, just thinking out loud SeanGTS!)
I don't get it
Last edited by erick3; 10-03-12 at 06:58 PM.
10-03-12, 07:14 PM
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Got a message back from them as well. Apparently no tune because the IS-F runs "VERY RICH" from the factory. Price for 5 lbs of boost and an addition of a measly 100 whp...$17,000
He said ~500 whp is what they essentially have going on (Mustang Dyno). Doesn't sound like they any supporting mods. I wonder why they're not worried about the transmission? It's new...and I doubt anyone has pushed its limits. Silly.
He said ~500 whp is what they essentially have going on (Mustang Dyno). Doesn't sound like they any supporting mods. I wonder why they're not worried about the transmission? It's new...and I doubt anyone has pushed its limits. Silly.
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10-03-12, 08:02 PM
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This is just a thought, maybe a brainfart thought, but figure I would ask. Since the ECU's on our Lexus' can't be modified, has anyone considered trying an addtional fuel controller to control an additional injector in the intake? Sort of similar to how a NOS fogger setup works. A certain amount of metered fuel added per amount of boost added. So in essence, program the controller to meter additional fuel to the intake based on a pressure reading from the turbo? Probably a stupid idea, but figured I would ask.
10-03-12, 08:09 PM
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This is just a thought, maybe a brainfart thought, but figure I would ask. Since the ECU's on our Lexus' can't be modified, has anyone considered trying an addtional fuel controller to control an additional injector in the intake? Sort of similar to how a NOS fogger setup works. A certain amount of metered fuel added per amount of boost added. So in essence, program the controller to meter additional fuel to the intake based on a pressure reading from the turbo? Probably a stupid idea, but figured I would ask.
10-04-12, 02:11 AM
#14
Got a message back from them as well. Apparently no tune because the IS-F runs "VERY RICH" from the factory. Price for 5 lbs of boost and an addition of a measly 100 whp...$17,000
He said ~500 whp is what they essentially have going on (Mustang Dyno). Doesn't sound like they any supporting mods. I wonder why they're not worried about the transmission? It's new...and I doubt anyone has pushed its limits. Silly.
He said ~500 whp is what they essentially have going on (Mustang Dyno). Doesn't sound like they any supporting mods. I wonder why they're not worried about the transmission? It's new...and I doubt anyone has pushed its limits. Silly.
even though most of what you say is true about needing more fuel, a setup like this isn't as impossible as you think if the car is in deed running very rich. LMS created a bolt on supercharger kit for the is300 that didn't require any tuning back in the day. That kit brought the is300 to about 300hp but didn't do well because the price per hp wasn't worth it just like this one.
So a kit like this is certainly possible but it requires a lot of research and since the isf is an entirely different animal, who knows how well it works. All that said, I wouldn't put my F on the line with an unproven kit like this, specialy without tuning.
Last edited by jat0223; 10-04-12 at 02:31 AM.
10-04-12, 04:27 AM
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No idea if this product works with the F but there's a video on
From the web site:
On active Control Function *CAN System Vehicles 2006+ Toyota/Lexus (except Hybrid)
The Fuel Pressure, Fuel Injection and Electric Fan can be controlled actively. There are some vehicles that this function cannot be used.
The fuel pressure can be controlled every 100 RPM and can be increased of decreased from –9.9 to 25%.
The fuel injection can be controlled every 500 RPM within the 3000 RPM range and can be increased of decreased up to ± 25%.
The electric fan can be controlled to go ON or OFF within 20 to 100 degrees of the water temp.
Last edited by JasonH42; 10-04-12 at 04:37 AM.