GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

GS-F Conversion...is it worthy to be called a F?

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Old 05-05-11, 01:00 AM
  #31  
SoCal Cyco
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thank you for your responce, it was very detailed much like your work.


on a side note i think you are one of the last insipations on this site as far as monster power and extreme knowledge is concerned. one day i hope my car ends up in your hands. thanks again for breaking us all off a little piece of your brain
Old 05-05-11, 01:58 AM
  #32  
JeffTsai
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Originally Posted by supratp23
So your letting the stock computer control the vvti? Does it control it well with having a turbo on there?

Also are you using the maf as a blow through type? stock maf?
Yes, stock ECU to control VVTi. It actually does a pretty good job. For the MAF, it's running as a blow through with the BOV located before the MAF. Never put your BOV after the MAF as this will will cause a engine stall condition whenever you "blow off".

As for how well the car runs. I will be posting some new videos when I have time. It runs very smooth and the power is very strong. Like I said before, all of the magic is in the tune. I've nearly mastered tuning the Lexus ecu for these cars and I can get the tune down damn near like OEM. No check engine lights, and zero codes...just like a stock turbo car should be.

Originally Posted by sam430
love fast revving engine. I always wanted this on my gs430. Light weight forged internal and tops to keep up. Even with slight increase in hp/tq... the fast revving engine will up others with more power.

Is the ISF seats any lighter than ours? rip the seats apart and put unobtanium skeletons and reupholster them.

I seriously wonder how the lfa would do with turbo....
I got the seats mainly due to the fact that they have nice fat side bolsters to keep you in the seats during hard cornering. Don't know how much lighter they are, but I'll weigh them both side by side when I get them in. I don't mind if they're not much lighter, I'm getting these for the bolstering increase while still being able to maintain some sense of Lexus comfort lol.

The LF-A stock probably wouldn't hold up too well to boost. It's a pretty high compression motor to begin with. Now, we'll be talking power if you throw some lower compression forged pistons in. But who here can afford to tear into a $100K+ engine?

Last edited by JeffTsai; 05-05-11 at 02:05 AM.
Old 05-05-11, 06:10 AM
  #33  
puff
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Originally Posted by JeffTsai
with me only pushing it to 600, the motor will be reliable for a loooong time.
Originally Posted by JeffTsai
Believe it or not, an AEM FIC piggyback. The magic sauce is all in the tuning
I still would like to see a dyno sheet and this is supposed to be on pump gas right?
Old 05-05-11, 06:25 AM
  #34  
luda42688
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Originally Posted by JeffTsai
The LF-A stock probably wouldn't hold up too well to boost. It's a pretty high compression motor to begin with. Now, we'll be talking power if you throw some lower compression forged pistons in. But who here can afford to tear into a $100K+ engine?
Some crazy ***** out there will turbo it, its bound to happen.

as for you sir, you well deserved teh F badge, sick clean car!
Old 05-05-11, 07:14 AM
  #35  
SlvrGS300
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Originally Posted by puff
I still would like to see a dyno sheet and this is supposed to be on pump gas right?
I second this motion. Wait, I guess it would be third since the first was ignored.

How bout one for the white car too? Last time I checked it was about half of what your sig claims. . .
Old 05-05-11, 07:23 AM
  #36  
OT0814
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this is awesome. I have the exact same car(minus all the upgrades) but i am seriously thinking about taking a trip to texas and letting you work on my car jeff. i dont think i would trust anyone else with it lol
Old 05-05-11, 07:55 AM
  #37  
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F's wanna be hahhah... you prolly the only who has the GS-F in the entire world man. Good job
Old 05-05-11, 08:01 AM
  #38  
twyst
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dayummm! Hella legit parts
Old 05-05-11, 08:28 AM
  #39  
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Originally Posted by SlvrGS300
I second this motion. Wait, I guess it would be third since the first was ignored.

How bout one for the white car too? Last time I checked it was about half of what your sig claims. . .
Why are you hating?
Old 05-05-11, 08:30 AM
  #40  
NYGS3ANDY
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Lost of words. U deserve the F badge
Old 05-05-11, 08:33 AM
  #41  
LexFather
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Gotdamn Jeff, freaking incredible.
Old 05-05-11, 08:34 AM
  #42  
LudeNsoL
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Awesome work man.. I wish I had funds to do this!!
Old 05-05-11, 08:36 AM
  #43  
speedaddic
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I don't think he's hating , he's just trying to get some dyno #'s... If I made a claim of 450whp, I would have to have my dyno sheet to prove nay sayers wrong.
Old 05-05-11, 09:25 AM
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denut-L
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F***
Old 05-05-11, 09:50 AM
  #45  
SptDsgnGS
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awesome build!! any pics of the seats in the car?


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