450HP LEXUS GS400 rips! STOCK INTERNALS & ECU @ 10psi! (Mod list in description)

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  • Опубликовано: 19 дек 2024

Комментарии • 109

  • @iamgerry86
    @iamgerry86 2 года назад +18

    Awesome! Thanks for the GS content! I sold my NA 2JZ Aristo a few years ago but I just picked up a GS430 and the V8 is something else.

    • @explorehunter
      @explorehunter Год назад +1

      So how would you describe their most notable differences? Between 2JZ and the 3UZ

    • @tysonsmith9216
      @tysonsmith9216 Год назад

      Until you’ve felt that uz scream.

  • @RyansNSX
    @RyansNSX Год назад +6

    Hoping to do something similar with my 99 SC400.

  • @paladain55
    @paladain55 3 месяца назад

    This channel is a fantastic resource! Can't wait to mess with mine again and look into the supercharger kit.

    • @ForwardMomentum
      @ForwardMomentum  3 месяца назад +1

      Thanks for the encouragement! There are so many moments where I just want to quit this side hobby of filming and editing and enjoy life. Notes like this help keep me going. 👊

    • @paladain55
      @paladain55 3 месяца назад

      @@ForwardMomentum keep it going! Outside of you there's about 0 information left on the internet now that most forums are defunct. The 00s Lexus v8s are the new 90s Hondas now that they are all gone lol. Affordable fun is the way!

  • @kamenriderozai8403
    @kamenriderozai8403 Год назад

    Holy shit, was just here an hour ago learning about your basic suspension stuff. You're the best truly subscribed already but I'd do it again if I could

  • @LoveStarDistrict
    @LoveStarDistrict 2 года назад +4

    Damn
    Yoooo! Thanks for the mod list I greatly appreciate it 🙏🏾

  • @teampsi
    @teampsi 2 года назад +2

    Glad that David is cool enough to help us do these mods. His car is on point and I can only hope that mine runs like that in the end.
    Same goes for you Christian!

  • @19901UZ
    @19901UZ 4 месяца назад

    Thanks for this info. I want to supercharge my 90 ls400

  • @thomastran1728
    @thomastran1728 2 года назад

    Happy to see you back
    Merry Christmas and happy new year
    Thank for everything you did to show us
    ❤👍🎄🎁🙏

  • @tahaakhtar776
    @tahaakhtar776 Год назад +1

    I wanna know how can I make more power with NA motor I don’t wanna supercharger in it for now

    • @ForwardMomentum
      @ForwardMomentum  Год назад +1

      If GS400: Headers, AFC, and 3.7 diff. If 430: headers, ECU flash, 3.7 diff.

    • @jovaniandaya3510
      @jovaniandaya3510 8 месяцев назад

      @@ForwardMomentumI did a 3.9 diff from gs300 would you say you recommend it more or is that preference based also btw since i did the 3.9 diff i max out at 125 mph but off the line it goes

    • @ForwardMomentum
      @ForwardMomentum  8 месяцев назад +1

      I recommend the 3.7. It’s a better balance on a DD IMO.

  • @utagzmotoring
    @utagzmotoring Год назад

    That’s first property owner is going to be pissed lol.

  • @1SlowGThang
    @1SlowGThang 20 дней назад

    So the cobra SC fits the gs400 motor with no major modifications?

    • @ForwardMomentum
      @ForwardMomentum  20 дней назад

      Not sure how you define “major” but it’s a fair amount of work to get the M112 installed. Here’s EP1 of the series: Supercharge Your TOYOTA / LEXUS V8 | Episode 1 | PARTS
      ruclips.net/video/y4bKn3V8OEw/видео.html

  • @mfsusanoo7238
    @mfsusanoo7238 5 месяцев назад

    Do you know of theres a way to switch to hydraulic lifters for the engine?

    • @ForwardMomentum
      @ForwardMomentum  5 месяцев назад

      Why do you want to? It’s a shim over bucket design. If you’re looking for high rpm, I hear you need to go to shim under bucket. That’s just Internet info, not personal experience.

    • @mfsusanoo7238
      @mfsusanoo7238 5 месяцев назад

      @@ForwardMomentum just maintenance reasons, that way I don't have to worry about valve adjustments

    • @ForwardMomentum
      @ForwardMomentum  5 месяцев назад

      I have 180K mi and mine is supercharged. I’m not worried about valve adjustments. Changing a quad cam system over to hydraulic would be an engineering marvel. If you do it, let me know!

    • @mfsusanoo7238
      @mfsusanoo7238 5 месяцев назад

      @@ForwardMomentum see thats why I'm asking cause I don't know shit about cars xD still learning though

    • @ForwardMomentum
      @ForwardMomentum  5 месяцев назад +1

      All good! Nothing wrong with asking questions and learning. I do the same all the time. 👍

  • @T0tenkampf
    @T0tenkampf Год назад

    Have you come across any good videos or articles about getting 10 psi with this kit on a LS430 3UZ-FE? I read the post below about the 750whp but I think 400 would be plenty fun in a daily driver still on the AT 6 Speed. I have read the connrods can be upgrade to the pre vvti 1UZ fat boys and then maybe the next limit is the thin cylinder walls. Is 5psi really the limit on those because of the cylinder bore?

    • @ForwardMomentum
      @ForwardMomentum  Год назад

      Limitations are generally: transmission, ring lands and rods. There isn’t a magic psi per se, but anecdotal consensus has generally been 5-6psi is a “safe” limit. I personally witnessed the A650 tranny being the weakest link as mine went bye bye without any boost. That said, with proper AT mods and tuning, I’d be comfortable with 6psi on a 3UZ for a DD. My car is now at 8psi and aside from putting on headers, that’s about my comfort limit.

  • @Bellgrande
    @Bellgrande 2 года назад

    I wish getting a LSD for these cars were easier, my IS300 I swapped in a Y38 LSD differential from a scion FRS for only $170 bucks.

  • @Jumping1975
    @Jumping1975 3 месяца назад

    Hi there. I haven't been on your channel in a while. I apologize. I have a 1998 GS400 with 130K miles. Black on Black with Lexus RC300 19" rims. I am detailing the crap out of it right now. My son was driving it and now has a more economical car. I love this car and now have it back 😍It currently has Megan racing sway bars (upper and lower) and an intake. And Borla exhaust (the ones you recommended years ago). I want to get a supercharger. What is your super charger? And what is your approximate cost for install? I found a Bullet supercharger for $5356 (parts only).

    • @ForwardMomentum
      @ForwardMomentum  3 месяца назад

      Hello - there are a couple things you can do to get supercharger info. 1) start with EP1, here:
      ruclips.net/video/y4bKn3V8OEw/видео.html or 2) go to my channel playlists and check “supercharger” and watch the episodes that look interesting. There are a lot of variables when it comes to pricing, but generally speaking you’re looking at $4K - $6K USD.

    • @Jumping1975
      @Jumping1975 3 месяца назад

      @@ForwardMomentum I will check it out. Thank you very much. I need to go thru your videos but can you quickly tell me your current 0-60.

    • @ForwardMomentum
      @ForwardMomentum  3 месяца назад

      I haven’t measured it since my LSD install and going back to a 3.2 rear end, plus I am breaking in my new Stage 3+ clutch. That said, if I can launch it well, it should be in the low 4’s.

    • @Jumping1975
      @Jumping1975 3 месяца назад

      @@ForwardMomentum That’s quick. Thank you.

  • @JoshTaylor
    @JoshTaylor Год назад

    What's the approximate cost of parts alone for this, not including the manual swap?

    • @ForwardMomentum
      @ForwardMomentum  Год назад +1

      Probably $5K-$6K. I cover what I did in this video:
      ruclips.net/video/y4bKn3V8OEw/видео.html

  • @ItaliaJP400
    @ItaliaJP400 Год назад

    What size spacers are u running in rear? H&R 25mm ?

  • @jay-uh3pk
    @jay-uh3pk 2 года назад

    will this LSD he has bolt right into the stock 2000 GS400?

  • @xXilisminusXx
    @xXilisminusXx 2 года назад

    Wow does that LSD bolt right onto a A650? Nothing has to be re-geared?

    • @ForwardMomentum
      @ForwardMomentum  2 года назад

      A650 really has nothing to do with it.

    • @xXilisminusXx
      @xXilisminusXx 2 года назад

      @@ForwardMomentum oh gs400s and gs430s have the same rear end? I thought since one is a 4 speed and one is a 5 speed the final drive would be different

    • @ForwardMomentum
      @ForwardMomentum  2 года назад

      The diff is completely separate from the trans. I have an episode on diff swap info. The GS430 also has the A650. Are you thinking of the A340 in the Aristo TT?

    • @xXilisminusXx
      @xXilisminusXx 2 года назад

      @@ForwardMomentum yea I was confused, I thought the 400 used the A340 which is why I thought the ring gear would be different. So the 400 and 430 have the same final drive ratio? So the LSD he used for his 400 will also work for my 430?

    • @ForwardMomentum
      @ForwardMomentum  2 года назад +1

      Yes. Watch my diff swap episode for more info. 400/430 = 3.2, Aristo TT = 3.7 GS300 = 3.9. Those are the basics. I run the 3.7 in mine.

  • @falblushi6701
    @falblushi6701 2 года назад

    Is the deferential stock one or upgraded? Also is that affect on car HP ?

  • @dougstevens9517
    @dougstevens9517 Год назад

    Do u have to manual swap if I wanna supercharge it?

    • @ForwardMomentum
      @ForwardMomentum  Год назад

      No, but strengthening and cooling the AT is recommended.

    • @dougstevens9517
      @dougstevens9517 Год назад +1

      @@ForwardMomentum where can I find supercharger??..

    • @ForwardMomentum
      @ForwardMomentum  Год назад

      Please watch my multi-part series. Be sure to look at vid descriptions as well. Here’s EP1: ruclips.net/video/y4bKn3V8OEw/видео.htmlsi=PlSxM7iIKoTAxYnA

  • @daniel9111
    @daniel9111 Год назад

    What engine management is he running?

  • @mr.cangieter8758
    @mr.cangieter8758 2 года назад

    Is that whp or crank?

  • @musikmaker21
    @musikmaker21 Год назад

    I WANNA DO SOMETHING LIKE THIS TO MY LS460

  • @797Jake
    @797Jake Год назад

    I just got a 01 GS430 and I’m trying to get a Limited slip but can’t find any could u help me?

    • @ForwardMomentum
      @ForwardMomentum  Год назад +1

      I should have an episode coming up in the future on a potential option. There isn’t really a turnkey option (where you just swap out the entire diff as a whole unit); rather, it’s usually the guts and you’ll need to swap them into your pumpkin. Anyway, I’m in talks with a place but I hesitate because they’re still trying to get parts and stuff.

    • @797Jake
      @797Jake Год назад

      @@ForwardMomentum yea I just wanna swap out the middle part bcuz ion wanna weld it bcuz im going to daily the car also could u slide on an open diff?

    • @ForwardMomentum
      @ForwardMomentum  Год назад +1

      You can slide, but not as well as welded or LSD of course. Plus you’ll probably burn it out in short order in peg leg form.

    • @797Jake
      @797Jake Год назад

      @@ForwardMomentum would a SC430s limited slip diff fit?

    • @ForwardMomentum
      @ForwardMomentum  Год назад +1

      I’m not sure. There’s a fitment matrix on a thread on ClubLexus that you can probably pull up.

  • @jujuhernandez8180
    @jujuhernandez8180 2 года назад

    Hey man just wanted to say much respect I have for your channel bro so organized and on point. I have a 2002 GS 430, I’m looking to build up the engine and add some serious power but I know that the 3uz fe can only take so much with stock eternals, I’m looking to be in ball park of 750rwhp-800 do you know any mods that can take me there or is that even a possibility ?

    • @byloyuripka9624
      @byloyuripka9624 2 года назад

      literally anything is possible, if humanity came together we could reconstitute the burned up space shuttle, we could build a house on mars (essentially) tomorrow. you mean what is the cheapest and easiest way

    • @ForwardMomentum
      @ForwardMomentum  2 года назад

      What’s your budget? 😉

    • @jujuhernandez8180
      @jujuhernandez8180 2 года назад

      @@ForwardMomentum well tbh how ever much to get it where it needs to be 🤷🏾‍♂️

    • @ForwardMomentum
      @ForwardMomentum  2 года назад +1

      How about your skillset? For instance, can you build a motor or would you rather leave it to a pro shop? Off the top of my head, you’re looking at: rods, rings, pistons, cams, head work, FI, and standalone. At that point you may want to consider an LS swap. Not even kidding. A 3UZ safely at those levels is probably going to run you $8-$12K. Then you have the transmission…

    • @jujuhernandez8180
      @jujuhernandez8180 2 года назад

      @@ForwardMomentum My skill set are amateur I could most likely rebuild it myself with some helps of my mechanic buddy’s, I have thought about Swapping it with a LS or 2jz/1jz but that’s if I have too I’m really looking to see if it’s just possible for my engine to even hold that much power constantly where can I find such parts? ,what tranny fits on my vehicle I was looking for a 6spd or maybe even a 10spd.

  • @ILLUMINATION313EVO
    @ILLUMINATION313EVO 6 месяцев назад

    Why did you say the stock hp is 240? Its 300 stock. I have a fully customized gs 400. And worked at lexus..

    • @ILLUMINATION313EVO
      @ILLUMINATION313EVO 6 месяцев назад

      Ah you were talking about to the wheel. Lol I suppose 🙄 drivetrain sigh

    • @ForwardMomentum
      @ForwardMomentum  6 месяцев назад +1

      Correct. WHP. It’s astounding how much power the stock drivetrain eats up on these, but I guess that’s old tech and a comfy slushbox for you.

    • @ILLUMINATION313EVO
      @ILLUMINATION313EVO 6 месяцев назад

      @@ForwardMomentum yep. I plan on boosting it one day but I'm enjoying every second of it now. I didnt think I would ever own one when I worked at Lexus, I took a video of one I think I uploaded it on here and I'm like hmm. I had it for I think 5 years now. Maybe 4. Sometime during the beginning of covid lol. Gonna subscribe and see how you boosted it. I only have about 40k on this new engine so I'm trying to not ruin it even though I know these can get a million miles out of the engine. I drive it to the cruise and car shows and around town but I dont like to soo much since if someone hits it.. it will be their last day lol. But yeah man love the videos. I got a turbo civic with 15 pounds and always loved aspirated cars but this has been such a difference. It has a ls400 differential. Imported 1uz, . Everything is different on it. The guy I got it from worked at lexus with me and he has soo many different cars from supras to lexus so he went through everything on this car. Been a interesting ride forsure

  • @MistaaFrosty
    @MistaaFrosty 2 года назад

    you getting black smoke from running rich!

    • @ForwardMomentum
      @ForwardMomentum  2 года назад

      He’s safely in the 11.0-11.5 range. We think it’s from being catless.

  • @malu6351
    @malu6351 2 года назад

    give us david's canal on yt if he had plz

    • @ForwardMomentum
      @ForwardMomentum  2 года назад

      Sorry, he’s not really active online. No channel.

  • @robertotitocollazo3831
    @robertotitocollazo3831 9 месяцев назад

    You spend more that 20,000 dollars to get 450 hp you crazy

    • @ForwardMomentum
      @ForwardMomentum  9 месяцев назад

      First of all, it’s not my car. Secondly, where did you come up with that figure? 🤔

  • @Tim240T
    @Tim240T 2 года назад

    I see this shit, it's sick, but get it on a real ECU setup instead of that antique Gameboy of a AFC. Brands Hatch performance makes a nice harness already pinned for LinkECU

    • @ForwardMomentum
      @ForwardMomentum  2 года назад

      He’s good for now. Thanks.

    • @Tim240T
      @Tim240T 2 года назад

      @@ForwardMomentum Seems like a waste of potential. You could really fine tune it and squeeze out a lot more power. More aggressive timing, and get the fueling right would likely help.

    • @Tim240T
      @Tim240T 2 года назад

      Always hated messing with the old SAFC on jz cars.

    • @ForwardMomentum
      @ForwardMomentum  2 года назад +1

      Trust me, he’s considered it. He’s a very smart guy. We’ve talked it over at length. In the end, for now, the total cost of about $2K to add a SA to his car just doesn’t make sense. We’re both totally with you on the benefits of a SA and the flexibility a SA adds and, as you’ve said, potential power adds. In some ways we wanted to prove that decent power levels can happen with just fuel tuning I guess and to stay within a decent budget. 👍

    • @Tim240T
      @Tim240T 2 года назад +1

      @@ForwardMomentum makes sense didn't know it was a low budget kinda thing, nothing wrong with that full send to ya brother. Sometimes people are just ignorant to how much better tech has come on the ECU sides of things.

  • @GunnyRaps
    @GunnyRaps Год назад

    Why are GS owners like this?
    My GF mentioned me getting a new car, so i showed her an 04'. 👍

    • @ForwardMomentum
      @ForwardMomentum  Год назад

      Why are GS owners like what?

    • @GunnyRaps
      @GunnyRaps Год назад

      @@ForwardMomentum It was a compliment... I'll always have a second gen GS. With the price of new cars and trucks, I can literally put $400 a month into my car and it'll last forever. Love your channel 👍

    • @ForwardMomentum
      @ForwardMomentum  Год назад +1

      Glad I asked. Wasn’t sure exactly what you were referring to. Thanks for clarifying 👍. Thanks for watching, commenting and the compliment. I completely agree with you. When I rent a car for work I am rarely left thinking “I’d rather have this _____ to drive around. I always look forward to getting in my GS. 😎

  • @BobWileyAKA52Blue
    @BobWileyAKA52Blue 2 года назад

    This is decent, but you still have lots to learn. The GS is a good family road trip car, but you would have been better off modding a BMW 335 or 135. Either can do 500hp with bolt on kit.

    • @ForwardMomentum
      @ForwardMomentum  2 года назад +6

      First of all, this isn’t my car so you’re barking up the wrong tree. Secondly, there’s no need to tell someone they “have a lot to learn” and “you would have been better off…” Just make your point and move along. Lastly, there’s a reason I don’t own German vehicles. Repair bills. So thanks, but no thanks.

    • @BobWileyAKA52Blue
      @BobWileyAKA52Blue 2 года назад

      @@ForwardMomentum you still have lots to learn since you don't know how to work on German cars.

    • @ForwardMomentum
      @ForwardMomentum  2 года назад +3

      You assume a lot in what you say. Maybe you should take a break from that keyboard warrior job. 😆

    • @BobWileyAKA52Blue
      @BobWileyAKA52Blue 2 года назад

      @@ForwardMomentum don't be offended. u said you'd have to pay someone to work on your cars if they were BMWs. Give it time, Euro cars are not that hard to work on.

    • @ForwardMomentum
      @ForwardMomentum  2 года назад +3

      I’m not offended. “Repair bill” was a general term; it doesn’t mean that I would have someone do the work. It means I would and can do the work, but choose not to. Believe it or not I’m a huge German car fan, but I despise the reliability track record, especially with vehicles from the same era as my GS: late 90’s.