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  1. spf_lexus

    vvti 2uz with 98 vvti gs400 ecu and sensors

    So I have been thinking about a 4.7l complete vvti longblock swap using original sensors and ecu from my 98 gs. These are getting cheap at the junkyards now. This would effectively let the 4.7l spin to 6200rpm. Also note that i have ppe headers, full exhaust and a 3.25" bumper scooper CA. I know...
  2. spf_lexus

    Centrifugal + wastegate = more torque!!

    I have been doing a lot of reading on this and found it pretty interesting. The biggest downside of the centrifugal design? Not enough mid range and low end torque! What I have found is that you can have your cake and eat it too (with very little repercussions).. here's how it works in 2 easy...
  3. spf_lexus

    Back In Action

    Hey fellas, its been quite a while since I last contributed to the forum. The last year+ I spent finishing up my last 2 semesters in college, started my job hunt and its been extremely stressful and busy. I ended up selling my supercharged SC400 and my project LS470 a while back so I could...
  4. spf_lexus

    Parts Modded SC400 Part Out (Lots of good parts!)

    Well I finally finished my degree and im about to upgrade to a vvti GS400 as my DD. I just got hired working at the Ford headquarters in Dearborn Michigan so I will be moving in a few weeks. I need to consolidate all my projects that never really materialized very soon so my modded sc400 and...
  5. spf_lexus

    New Lexus ad... possible 3uz featured?

    http://www.youtube.com/watch?v=Xrl7mx_39tA&NR=1 When the block is being rotated at 20 seconds I swear it is a 3uz. 6 bolt mains, arrows on the main caps and what looks like an a340 series auto bellhousing. Thought it was an interesting ad.
  6. spf_lexus

    Extreme MPG from 91' LS400 ??

    Ok so I have owned two 1991" LS4's over the years and im about to grab another with the intent to leave the engine alone. Gas is going to hit over $4/gallon and any increase in range is welcome. The best I can achieve driving at 60-65mph on the freeways is about 23-24mpg (depending on the...
  7. spf_lexus

    Tage Evanson's FF Civic owns all competitors

    http://www.importtuner.com/features/impp_0808_1995_honda_civic/index.html Naturally aspirated b18c beating race prepped Evo's, STI's, Porsches, vettes, vipers... you name it this little 1995 civic has disgraced it! Im not a huge Honda fan but the engineering behind this car is unbelieveable...
  8. spf_lexus

    Supra steering rack upgrade for SC400???

    I just replaced my inner tie rods when I discovered the boots had a lot of oil in them with a few drops coming from the rack ends. Im pretty sure my rack is leaking and on its last legs. Here's my Q: I noticed that sc300/400 steering racks cost 2x what a supra rack goes for. I dont mind...
  9. spf_lexus

    Tempermental Cam Sensors

    Im out of ideas. I have searched and searched for info on UZ cam sensors and a solid way to solder cut lines but no luck. I have had 2 incidents where my serpentine belt jumps an idler and cuts 1 or both sensors. I have since replaced 1 of the 2 sensors with a used one but I cannot simply swap...
  10. spf_lexus

    MR2 Electric P/S Pump Swap??

    I have a friend at school with a 94' silvia swapped with a nissan VH45 V8 and he has been showing me his MR2 electric pump swap. He had to relocate his stock pump due to clearance issues but it got me thinking. If i can relocate my P/S pump, I can delete the pump altogether and then i can play...
  11. spf_lexus

    My nemesis... SRT-8 Charger!!

    So there is a local guy with a stock srt-8 charger that wants to race me at my local strip. I have a 3200lb sc400 w/ 9psi centrifugal, 4.27 rear, 255/19'' nitto's, high stall TC. Im guesstimating 400-420BHP versus a hemi 6.0L 420BHP v8 in a heavier car. Opinions?
  12. spf_lexus

    Wanted OEM Supra TT Rear Calipers Needed!

    Looking for a set of new or used 1993-1998 Toyota Supra twin turbo OEM rear calipers. If interested in selling, please contact me on this forum or my e-mail: [email protected] Thanks.
  13. spf_lexus

    Low Profile O2 Sensors??

    Does anyone know of a shallow mount oxygen sensor that will work in place of the stock 1UZ primary o2 sensors? my passenger side header has a poorly placed sensor bung which aims the sensor down, into the crossmember. Mine has bent so much that its leaking air so I need to find a substitute...
  14. spf_lexus

    1uz stumbling, "hissing sound" from manifold

    My UZ has always had a very low idle of 300-400rpm but always smooth and composed. Over the past week, the car idles down to 400rpm after warmup, and then misses constantly and sometimes stalls. If I raise the idle with the gas pedal (at stoplight) it still misses, but less often. I am thinking...
  15. spf_lexus

    Procharged 1992 SC400 "Fish bracket setup"

    Hey everyone, I know i have not posted about anything new lately as school has taken over most of my time. Over the past semester I have been bringing parts over from california so I could swap my centrifugal setup from my project LS470 over to something i can use every day. I have been driving...
  16. spf_lexus

    SC400 Mssfire, possible AFM issue?

    So I left my sc400 parked in my driveway, with the hood cracked a couple inches during a 4 day rain storm. I fired the car up today and noticed the idle sucks and it misses like crazy. My entire ignition system is brand new OEM w/ iridium plugs. I swapped AFM's from my 91' LS400 (which I know...
  17. spf_lexus

    SC400 Lightweight Roll Cage material??

    I just spent a solid day brush wheeling my entire interior to bare metal. Before I spray everything black I want to install a rollover hoop just behind the front seats with 2 straight return bars running from the top of the hoop, straight thru the rear deck, onto the rear trunk frame rails...
  18. spf_lexus

    SC400 4.27 ratio swap for $125

    The SC400 has a decent final drive as is, 3.92 isnt exactly mild but not exactly aggressive either. I was almost perfectly content with my SC down in southern california elevation but after taking it out to colorado at 5000ft it felt like the 500 or so pounds I stripped out was somehow back on...
  19. spf_lexus

    Dual mandrel "X" OR single "Y" Better?

    I have been trying to knock off as much weight as feasibly possible while maximizing power. So far my sc400 is down to 3100lb with a couple gallons of gas. I realized my exhaust layout was not optimized for my goals. I have 2.5" rush extractors feeding dual 2.25" mandrel pipes and a magnaflow x...
  20. spf_lexus

    10.3 quarter turbo 1uz Hilux

    http://www.youtube.com/watch?v=JNPpJ0s9eHg&feature=related Pretty amazing time for a truck. Judging by the skinny fronts its not 4wd but this truck can move! Check out the massive hood scoop...


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