Building for the road course...again

Discussion in 'Cars' started by gotovato, Nov 18, 2021.

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  1. gotovato

    gotovato Silver Member

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    Here we go. On the computer I can copy and paste these images from the other forum lol....dumb

    I feel like this is one of the big things missed on my Mazda build. An actual front end. 17x9 is great and all but not on a 3200lbs car with 350wheel torque and the heaviest front end in the game. This would've been proper for that car with a 275 mounted up front. Ah well. Live and learn
    Im still running 255 just with a ton more sidewall support. Increased front track width was immediately noticeable on the street too. Feels like youre driving a knife. Only real way to describe it.
    Did as much testing as I could on the street. Tried to load up the front end heavy but its tough on the street. Didnt seem to matter what i did that front end was STUCK. No rubbing detected during the test drive either so thats a huge win
    [​IMG]

    [​IMG]
    [​IMG]
     
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  2. gotovato

    gotovato Silver Member

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    Mondays track day. Believe I had one of the fastest if not the fastest lap of the day.

    All sorts of shit on track from base model 130hp civics to 2 ZL1 1LE Camaros. Those things eat up that straight away

    Grand Bend Motorplex Mod - 2024 season shakedown



    That lap moves me up a few spots
    IMG_5026.jpeg

    Aiming for top 10 this season. It should be doable. Engines still a work in progress. More tuning, more trying out different shit on the intake side. So far I’ve gone faster so no complaints.

    Took me a second to see the company I’m keeping lol. My little 2.0 shitbox has found its way up the list hanging out with some heavy hitters. I’ll take it
     
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  3. jdab555

    jdab555 Greenie Member

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    Do you have seats / harness in the Civic?
     
  4. gotovato

    gotovato Silver Member

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    I have a Sparco sprint L seat for myself, passenger is stock.


    No harness yet as the car is full stock interior. I may do a 4 point in the future for track only if I can find one that can be safely mounted without needing a harness bar
     
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  5. L337TurboZ

    L337TurboZ World Class Truck Squatter Silver Member

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    Seeing that 9k RPM was nice! Any plans to go higher? You were definitely moving on that lap.
     
    L337TurboZ, via a mobile device, May 22, 2024 at 9:03 PM
  6. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

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    Sounds awesome
     
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  7. gotovato

    gotovato Silver Member

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    So we’re currently at 9200. We’ll see how the power looks on the dyno and see if it’s worth revving out to 9500. I am built for 9500rpm but the header is a bit of a set back rolling off around 9100(based on resonances).

    As much as I want 9500 there’s no point stressing things if it’s not making any power up there
     
  8. Enki

    Enki Motorhead Platinum Member

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    Even if power is falling off, extra RPM can save you from having to shift, depending on track and gearing.
     
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  9. gotovato

    gotovato Silver Member

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    That was part of the goal of this engine. Spread out the torque to avoid additional shifts. So far I have way more wheel speed given the rpm than ever before.

    If need be, we’ll extend it. That’s always an option.

    Having good torque from ~4500-9000 has been great. On the street it’s whatever but it was immediately noticeable at the track
     
  10. Enki

    Enki Motorhead Platinum Member

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    Basically the reason I did what I did on my build.
     
  11. gotovato

    gotovato Silver Member

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    There were a few goals with this build. Power being one of them but I was looking for more.

    extending the power band to avoid downshifts was one of the goals which it seems we got right
     
  12. Enki

    Enki Motorhead Platinum Member

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    That and mechanical advantage. Higher RPM = more time in lower gears = better thrust (generally speaking)
     
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  13. gotovato

    gotovato Silver Member

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    That’s another good one. Seems we have a few benefits here.

    Still working on tuning and intake manifold setup. Going to be trying something different this week to see what the engine tells us.


    I recently downgraded throttle bodies from 70mm to 65mm as a reliability mod. That change did some crazy stuff all over the map. Tuner says my setup appears to be extremely sensitive on the intake side so we’re going to play around with a few things here
     
  14. Enki

    Enki Motorhead Platinum Member

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    Yeah, SP63 learned the hard way that gearing matching the engine (and/or vice versa) is suuuper important for racing. Diesel gears lmao
     
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  15. gotovato

    gotovato Silver Member

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    Some clips from Monday. Exterior videos a buddy got.

    the car really does sound insane LOL

    also that rear inside tire just floating along. You can even see the cars rotation in that left hander just before the clip ends. Ooof. Thing is on rails




    Audio from the straight away. Little bit loud
     
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  16. Enki

    Enki Motorhead Platinum Member

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    Sounds good. Mine won't sound anywhere near that with a turbo on it though.
     
  17. gotovato

    gotovato Silver Member

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    Yea but you’ll have that turbo power at least. Something I dont have…yet the car still manages to be a track weapon. I’ll take what I can get lol
     
  18. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

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    They sell electric turbos on ebay......lol
     
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