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Old 11-01-2012, 03:07 PM   #1
HPF Kris
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Thumbs Up The HPF Drag Car Screams Power On The Dyno!

Decided to run the drag car on the dyno to shoot some footage. While we were doing so, we decided to play around w/ some cam timing to see how much more "ooomf" we can get. The results pleased us very well.

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Old 11-01-2012, 04:54 PM   #2
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Why's the shop empty?
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Old 11-01-2012, 05:21 PM   #3
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Why's the shop empty?
21,000 sq foot shop (5,000 you can see in the vid, 16,000 you can't) and a car on every lift (5 lifts). We used to pack cars in tight in the main area but we've done some cleaning and reorganization so we can do a better job at servicing local walk-ins. The local community and those that drive longer distances to see us often need their cars on a lift in the middle of other projects.

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Last edited by HPF Chris; 11-01-2012 at 05:21 PM.
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Old 11-01-2012, 05:21 PM   #4
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Makes sense now! Lot's of room to play with, damn!
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Old 11-01-2012, 05:26 PM   #5
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First of all, I really enjoy your videos. I think I have seen almost all of them. (off topic, I know..) I just watched all of the four part vids of M and B cylinder Heads and how CAREFUL they are assembling HPF's built motors. I urge everyone on this sub forum to watch them. Yes, it is long, but chock full of incredible work that represents what HPF cares about....being bullet proof for tons of miles.

This most recent video is fantastic production wise. Are you doing these in house? Very professional looking.

As far as the content, I found that to be spot on. Frag Nasty and I have been talking a lot recently about Vanos tuning for FI motors. He(and now I) is convinced it is critical to the over all performance of the motor and how the turbo spools up.
Is VANOS tuning a recent trend or something all tuners have been doing for a while? it seems special and tricky to do. Something that some tuners do not know HOW to do. Is that the case?
Is the work that you do and the results that you get going to help in tuning regular Stages of HPF cars?

When I saw the HP only in the mid 800's i forgot about the huge drive train loss. So, anything you can do to bump rwhp up is going to translate to faster ET's...I assume that is the goal.

All you need is a proper strip with some traction so you can finally hook this beast up. Soon, I hope. The track is going to be too cold soon for good times.
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Old 11-01-2012, 05:37 PM   #6
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Originally Posted by Bdave View Post
First of all, I really enjoy your videos. I think I have seen almost all of them. (off topic, I know..) I just watched all of the four part vids of M and B cylinder Heads and how CAREFUL they are assembling HPF's built motors. I urge everyone on this sub forum to watch them. Yes, it is long, but chock full of incredible work that represents what HPF cares about....being bullet proof for tons of miles.

This most recent video is fantastic production wise. Are you doing these in house? Very professional looking.

As far as the content, I found that to be spot on. Frag Nasty and I have been talking a lot recently about Vanos tuning for FI motors. He(and now I) is convinced it is critical to the over all performance of the motor and how the turbo spools up.
Is VANOS tuning a recent trend or something all tuners have been doing for a while? it seems special and tricky to do. Something that some tuners do not know HOW to do. Is that the case?
Is the work that you do and the results that you get going to help in tuning regular Stages of HPF cars?

When I saw the HP only in the mid 800's i forgot about the huge drive train loss. So, anything you can do to bump rwhp up is going to translate to faster ET's...I assume that is the goal.

All you need is a proper strip with some traction so you can finally hook this beast up. Soon, I hope. The track is going to be too cold soon for good times.
I had JP spend 3 weeks dialing in the Vanos back in 2007. He was able to create 50 more horsepower at nearly every RPM at the same level of boost. Since then every HPF turbo M3 has received the benefit of this mapping. JP told me that we could make a lot more power on the big 8285 turbo because the vanos hasn't been optimized for it. I found this to be the case with some minor tweaks as you can see in the video.

There's a huge drivetrain loss with a TH400. 840rwhp SAE through an auto is equivalent to nearly 1,000rwhp through a manual. In a 2640 lb car that's pretty beastly. There was an 8100rpm rev limiter on the drag car the last time it was at the track. On the dyno I noticed the rev limiter was stopping the motor from accelerating at 145mph. That's what my trap speed was at the track which is well below what I expected. I raised the rev limiter to 8500rpm and at hitting nearly 160mph now. I'm going to remove the head and add springs and retainers and raise it to 9,000rpm so I can trap quite a bit higher.

The drag calculator shows 840rwhp SAE and 2640 lbs to equate to a 8.4 @ 159mph. http://www.hotrodpitstop.com/tool.php. I would be happy with that time.

Chris.

Last edited by HPF Chris; 11-01-2012 at 05:40 PM.
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Old 11-01-2012, 05:51 PM   #7
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I think Gheybe was referring to how quiet and empty it was. Most of your videos have a cameo of Chris K, Champ or Kirk trying to run and get out of the shot and include John. This one (with the exception of the individual filming) seemed to be just you.. like as if the tech's went to lunch and you decided to hop in the drag car and start turning knobs when noone was looking.. Lol (i'm kidding obviously).
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Old 11-01-2012, 05:51 PM   #8
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Glad that you carried on what JP found out. Excellent!

9K RPM! It already sounds like the Hounds of Hell on the dyno. I cant even imagine the sound when it spools to 9k. Do it!
I think that auto tranny may well help rocket the car to better EI's than you see on the drag calculator. Time will tell.
Yes, I do think 9k is where that drag car needs to be!
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Old 11-01-2012, 06:00 PM   #9
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I think Gheybe was referring to how quiet and empty it was. Most of your videos have a cameo of Chris K, Champ or Kirk trying to run and get out of the shot and include John. This one (with the exception of the individual filming) seemed to be just you.. like as if the tech's went to lunch and you decided to hop in the drag car and start turning knobs when noone was looking.. Lol (i'm kidding obviously).
True... It was quiet which is much easier when making vids. ha ha. We have had some turnover but have taken advantage of this situation by recruiting Pham from DOC Race to modify and create the remainder of 335i single turbo kit to match the new turbo manifold. We've also recruited John Reed to do our tuning on not only the HPF M3's, but the Z4M, 135i/335i and any other cars we decide to do. I am looking for another tech to support ChrisK and have quite a few applicants as you can probably imagine. I started tuning the AEM in 1998 and stopped doing cars when I hired JP (except for making changes at the track). It felt really good to dial the drag car in. I'm going to get 1,000rwhp through the auto before next race season. It's going to require a few other changes but just like everything else, when you set your mind to something you can achieve anything.

Chris.

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Last edited by HPF Chris; 11-01-2012 at 06:07 PM.
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Old 11-01-2012, 06:32 PM   #10
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Cool!, 30 psi is nothing on that turbo
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Old 11-01-2012, 09:25 PM   #11
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Nice
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Old 11-02-2012, 07:14 AM   #12
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Looks good.
oh and nice shoes
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Old 11-02-2012, 12:57 PM   #13
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Hah! This is the same VANOS that FAELOR kept saying was so great if it would be eliminated completely! I don't THINK so... Tuning the VANOS is cool. It's there. Take advantage of it!

Are you back to running OKADAS again? I noticed the lack of a Torque curve and the slightly (its really all that bad though) jagged line at high RPM. You were not getting that with the racing Denso's and the OEM coils were you? I remember you saying you could not get any new Densos right now. But there are plenty still available in this country. You were getting a good signal for Torque with the Denso/OEM coil combo?
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Old 11-03-2012, 12:34 PM   #14
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Could help but think, when you mentioned turning the 5 into a 10, how I like to do something similar at the bar with the help of Irish trash cans.
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Old 11-04-2012, 06:48 PM   #15
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Could help but think, when you mentioned turning the 5 into a 10, how I like to do something similar at the bar with the help of Irish trash cans.
Rofl

coming along' can't wait to c what hpf does next
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