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Thread: Looking for feedback from everyone who has a completed car

  1. #1
    Senior Member rodrieguz's Avatar
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    Looking for feedback from everyone who has a completed car

    I'm Looking to get some feedback form everyone that has a completed car to comment on their suspention setup and how their cars handle and ride.
    I start by saying I have a Lamborghini diablo roadster replica with the HM front widetrack with 400lbs springs with carrera coilover shocks. On the rear I have an 88 cradle with 300 lbs springs and kyb struts.


    On the rear of the car I have no problem except when I hit a bump in the road it's like the car wants to play hop scotch or something. I'm thinking of adding a rear sway-bar and a strut tower brace if I can get one in there. As of right now I'm satified with the rear.

    On the front however, I'm running the 400lbs springs because the car wants to bottom out and my tires rub against the wheel well or edge of the inside edge of the fender. that was why I upgraded the springs. However I now think that the springs were not the problem (old springs were 300 lbs) I don't think the carrera shocks that HMT sells with their kits are suficient to increase the dampening force on the front of the car. I'm going to upgrade the shocks but before I do I'd like others who has a COMPLETED car to chim in on this one.

    I know a few other Lambo guys thats had the same problem, one guy has 500 lbs springs and has the same issues.

  2. #2
    Senior Member rodrieguz's Avatar
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    Re: Looking for feedback from everyone who has a completed car

    59 views and no one over here has a completed car with drivability results they care to share????????????

  3. #3

    Re: Looking for feedback from everyone who has a completed car

    I think every car is different, and needs to be evaluated based on how its put together and what's there to work with.

    I had an '89 Countach replica with a 350SBC. I did 400lb coilovers in the back, stock suspension in the front. I also had heavy duty sway bars front and rear. I did have interference issues in the front when I hit the brakes hard or when I cornered hard. The front wheels rubbed on the wells. Increasing the spring weights won't solve the issue, they'll result in a poor stance and poor performance. I think with kit cars, 90% of making them look good is getting the correct stance. Almost all of them that I've seen completed have the car sitting 1" to 2" too high.

    What I did was flare my front fenderwells out about 1". That allowed the wheels to recess into them without hitting anything. Fortunately for me, my kit had thin fenderwells to begin with, so spreading mine out actually helped the look of the car. The ride was not compromised either, and it was great to drive.

    Installing your bumpstops in the correct place will help lots too.

    Hope that helps a bit.

    This was during the course of final completion. Note the white areas on the front fenders where I pulled them outwards:


    And after:
    Meddle not with the affairs of the Dragon, for you are crunchy... and taste good with ketchup.<br />http://www.rc-sub.com/resources/grap...ni/avatar2.jpg

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    Re: Looking for feedback from everyone who has a completed car

    Hi Rod ...in terms of ride quality ...some of the best money I have spent on cars I have built (more than a few) was when I was finished tinkering about and satisfied the wheels could stay on for awhile ,there is a guy close to me who does on car wheel balancing $30 a wheel ...he jacks up each corner at a time and turns the wheel with a home made kind of machine , he also evaluates if the wheel is actually spinning true most aftermarket wheels are not hub-centric (the bolts centre wheel)(not good)you can see it even just by looking ,plus the vibration each wheel is adding to the quality of your ride ...he then experiments with the wheel weights to get the optimum feel ... on another note every fiero I have ever been in had that bump steer problem in the rear .. although I have not tried any of the bump steer kits ...john

  5. #5
    Senior Member dratts1's Avatar
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    Re: Looking for feedback from everyone who has a completed car

    I'm not finished with my AD355 yet but, I've talked to 355 Ferrari owners who have trouble entering driveways without scraping the front bumper. I have the option of air suspension on my Held setup and I see that Lambo owners lift the front in that way also. That's not going to help on braking (You wouldn't want to be driving around with the front end jacked up) but, it will help clear obstacles.

  6. #6
    Senior Member pavo_rodddy's Avatar
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    Re: Looking for feedback from everyone who has a completed car

    HI all :wave:

    Have you tried going to kitcentral.com? That's the spot, where most the Lambo guys hang out, not that someone couldn't chime in here yet.........
    Me, I sell engines, the cars are free.&nbsp; I need something to crate the engines in.... Enzo Ferrari......<br />Today they are called garage&#039;s, yesterday, they were stable&#039;s.&nbsp; Eric Jacobsen...

  7. #7
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    Re: Looking for feedback from everyone who has a completed car

    i dont much about the carrera shocks or if your kyb shocks are stock or the gr2 adjustables but i do know that not a single car on this forum should leave the garage without adjustable shocks. fromm 300 you really want them any higher and you need them. but the hopscotch problem sounds like a stiff ride. my old caar was so stiff id hit a bump on the freeway and it would er er er a couple times.

  8. #8
    Senior Member rodrieguz's Avatar
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    Re: Looking for feedback from everyone who has a completed car

    Quote Originally Posted by johns
    Hi Rod ...in terms of ride quality ...some of the best money I have spent on cars I have built (more than a few) was when I was finished tinkering about and satisfied the wheels could stay on for awhile ,there is a guy close to me who does on car wheel balancing $30 a wheel ...he jacks up each corner at a time and turns the wheel with a home made kind of machine , he also evaluates if the wheel is actually spinning true most aftermarket wheels are not hub-centric (the bolts centre wheel)(not good)you can see it even just by looking ,plus the vibration each wheel is adding to the quality of your ride ...he then experiments with the wheel weights to get the optimum feel ... on another note every fiero I have ever been in had that bump steer problem in the rear .. although I have not tried any of the bump steer kits ...john
    I got the wheels balanced and the were all off a bit. I also have an 88 cradle which I thought was to eliminate the bump steer on the 87 fiero chassis. i drove the car for a while lastnight and I went on a long drive today. Car tracks straight. when I hit a bump I still feel the hopscotch effect. So I Plan if I could add New bushings to the rear control links, that's even if they have them on there being that the 88 cradle is hard mounted.
    However I still have vibrations in my steering wheel.
    Quote Originally Posted by pavo_rodddy
    HI all :wave:

    Have you tried going to kitcentral.com? That's the spot, where most the Lambo guys hang out, not that someone couldn't chime in here yet.........
    I did ask this ? on kitcentral which I've been a member for years so that was my first stop. If everyone is building on a FIERO chassis the drivabilty should be prety much the same. So I was looking for feedback as to what others hav done to increase the comfortbility of driving their cars daily.

  9. #9
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    Re: Looking for feedback from everyone who has a completed car

    for vibrations in the steering wheel ,assuming all suspension links etc are in good order ,I would first check the wheels mounted on the car with a dial indictator looking for runout ...stock wheels centre themselves on the hub or protrusion of the rotors ,aftermarket usually don't ,sometimes I have corrected vibrations you talk about by just loosening all the wheel bolts until the wheel is free of the rotor and then hand tightning them while spinning the wheel helps to centre the wheel ,then slowly using a criss-cross pattern tighten the wheel down a little at a time ...don't just snap one bolt down with an impact gun and check again with the dial indictor and see if you have made an improvement ...the same guy who balances my wheels also taught me to observe the dust line on the tread of the tires ...clean the tread of your tires then take the car for a ride you can then clearly see the contact patch the tire is making on the road ..most times you will see your tires are over inflated escpecially on the front of these cars and the contact patch or line is a couple of inches too far in ..I deflate my tires a little bit at a time and experiment until most of the tire is making contact with the road ,for me it makes for a softer more enjoyable cruise.

  10. #10
    Senior Member rodrieguz's Avatar
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    Re: Looking for feedback from everyone who has a completed car

    John thanks for the tip, I lost your number, Eamil it to me again if you don't mind rodrieguz@hotmail.com

    Check out my reponse and videos of how the car is doing after I took some adivce.

    http://www.kitcentral.com/index.php?...99f9b4ed#46634

    Rod

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