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Took the little sleeper hatch to the dyno...

Discussion in 'Forced Induction' started by Slo86GT, May 24, 2004.

  1. Slo86GT

    Slo86GT Super Moderator

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    Car made the 150 mile trip fine, but drivability and gas milage were very bad. Got about 15 MPG on the interstate, and the car ran better when the CEL was on because of the missing o2 sensor from not having a bung in the incomplete (AND LOUUUUD) open downpipe.

    Got there at about noon, we went and got lunch, and got started on the car once it had cooled off some. I yanked the crossmember and dropped the downpipe. Don and Dustin worked on getting that completed, with o2 bungs for wideband and the stock o2, and it looks mahvelous. I'll have to pull it off and take pictures when it's time to get it ceramic coated. Once the exhaust was sealed back up and quiet, it was time to put her on the dyno to see what she'd do.

    We tuned drivability for about 2 hours, and it's 125% better than it was before. It drives almost like a normal civic street car with an agressive clutch. It's nice. It stumbles a few times in parking lot situations, but Don explained mostly how to get these fixed. It's just a super rich or lean field that I should be able to see in the fuel map.

    Next we moved on to the fun stuff. MAKING POWER.

    We started off at the wastegate's spring pressure (.4 bar/7ish psi) and worked up from there. The tuning was bad in these fields as well. Don put some not too agressive timing in the car, and it was running good. At 7 PSI, the car put down 206 HP/140 TQ at the wheels in a 90 degree dyno bay.

    Stepped it up to .7 bar, about 10 PSI, and we started to notice a problem. We weren't getting a very good intake air temp because the intercooler just wasn't cutting it with the increased airflow. I think the best numbers we got at 10 PSI were something around the mid 230's.

    We went back and set the car up to about .95 bar, 14 psi, and started playing with it, since this would be the highest tune we'd make on pump gas. After adding a bunch of fuel over the base tune I had, he was able to get the car to put down 264hp/193tq, but the IAT's were steadily climbing from the inadequite aftercooling.

    Thanks a million, Don, Dustin, and everyone at Polk Performance in Bryant, Arkansas. I'll be coming back for a midsize Precision Turbo & Engine FMIC install probably next spring. Neeeeeds mo powa! ;)

    :thumbup: :thumbup:

    [​IMG]
     
  2. pissedoffsol

    pissedoffsol RETIRED

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    damn, your i/c isn't cutting it? thats really strange.

    good numbers though. a lot more than the last setup :)
     
  3. Slo86GT

    Slo86GT Super Moderator

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    Only about 32, but at 1 pound less boost.

    Yeah, I'll be stepping up to a Precision FMIC here soon. Got my intercooler setup up for sale on a few forums sites. $600, obo for the ENTIRE setup. Not a bad deal, IMHO.
     
  4. pissedoffsol

    pissedoffsol RETIRED

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    wow. i never thought you'd make the move to a front mount.

    haha :) still, good numbers man
     
  5. driver1

    driver1 Senior Member

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    sweet dude, should be a serious setup with a front mount
     
  6. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    Very nice! That's a sweet torque curve. :thumbsup:
     
  7. turboB20hatch

    turboB20hatch Senior Member

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    what kind of car ? what motor ????
     
  8. pissedoffsol

    pissedoffsol RETIRED

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  9. JDMPlaya

    JDMPlaya Senior Member

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    Nice numbers man, How much did they charge for tuning?
     
  10. Bl6CRX

    Bl6CRX Senior Member

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    nice!, yeah how much was all that dyno time? was it a pak or a jet?
     
  11. Slo86GT

    Slo86GT Super Moderator

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    Dynojet inground. Very sweet setup. Had a brake loading ability to allow for part throttle tuning, as well.

    The owners and the other workers are friends of mine, but their usual charge is $75/hour, I think.

    I got the DP finished, 2 o2 bungs installed, and 4-5 hours of tuning for the bargain price of $xxx. :p
     
  12. pissedoffsol

    pissedoffsol RETIRED

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    it only cost you a porn?!?! awesome!

    :)

    the dyno in my town has that brake load feature as well. can't wait. part throttle/street tuning on the dyno = ownage :)
     
  13. [Freemantle]

    [Freemantle] Senior Member

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    POS - When are we finally going to get to see your setup?

    BTW: Props on your hatch. What's your IC setup? I may be interested in it.
     
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