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OT: Hatchback Dyno... Not too bad.

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Old May 12, 2002 | 01:55 PM
  #1  
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From: Jetsetter
Default Hatchback Dyno... Not too bad.

The set-up:
-JDM ITR Pistons .25” over bore
-Mugen Head Gasket
-3 angle valve job
-ITR valve springs
-CTR cams
-Skunk2 intake manifold
-JDM DC header
-AEM 3” (ITR) intake
-Fluidyne radiator
-Thermal R&D exhaust
-2.5” test pipe
-Chipped ECU
-VAFC

Timing seemed best at 16degrees. Tried 18 with some detonation - I believe that I need some colder plugs. I was using a stock heat range. Fuel pressure was 45psi at atmosphere. The fuel curve was pretty fat all the way through with a very fat spot around 5000 - 5500. No cam gears yet so my tuning was a little limited. We did about 12 runs and got very consistent data. The curves look much like any other GSR/TYPE R with that first hump in the torque curve coming in a little later at 4500rpm.

The torque peaked at 127 wheel at 6000rpm , and peak power was 175wheel at 7600pm. This was a net gain of 35 whp! My basline runs last summer, on the same dyno, was 140whp.


The rig - Dynapak 3000


One of the bay



[Modified by Ausmith, 10:25 PM 5/15/2002]
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Old May 12, 2002 | 06:49 PM
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Default Re: Hatchback Dyno... Not too bad. (Ausmith)

hey
good work !

it this the same car you were building a couple of weeks ago ?
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Old May 13, 2002 | 07:13 AM
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Default Re: Hatchback Dyno... Not too bad. (eg6madness)

Yep that's the one.
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Old May 13, 2002 | 07:31 AM
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Default Re: Hatchback Dyno... Not too bad. (Ausmith)

looks really good
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Old May 13, 2002 | 08:40 AM
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From: Jetsetter
Default Re: Hatchback Dyno... Not too bad. (eg6ajk)

Thanks - still a lot of little things to get sorted out.
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Old May 13, 2002 | 05:00 PM
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Default Re: Hatchback Dyno... Not too bad. (Ausmith)

WoW Can't wait to see it im person!!
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Old May 13, 2002 | 05:16 PM
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Default Re: Hatchback Dyno... Not too bad. (Ausmith)

Looks good man. Where did you get the dynoing done? What did you pay?

I would kinda like to get a baserun dyno before I install the turbo.

What engine is that? b18c?
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Old May 13, 2002 | 05:21 PM
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Default This needs moved.

Nice car & good numbers, but there are other forums for threads of this nature.
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Old May 13, 2002 | 05:52 PM
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Default Re: This needs moved. (94gsr)

nice numbers
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Old May 14, 2002 | 10:40 AM
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Default Re: Hatchback Dyno... Not too bad. (Sr. Ausmith)

You mean "drive" it in person....

I'll see you guys on Friday when you come to town. You can stop by autocross on that Sunday too.

94GSR - I believe this is a legit topic for tech. I put OT in the subject on accident. Can you suggest a better forum?
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Old May 14, 2002 | 10:47 AM
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Default Re: Hatchback Dyno... Not too bad. (Ausmith)

The set-up:
-JDM ITR Pistons .25” over bore
-Mugen Head Gasket
-3 angle valve job
-ITR valve springs
-CTR cams
-Skunk2 intake manifold
-JDM DC header
-AEM 3” (ITR) intake
-Fluidyne radiator
-Thermal R&D exhaust
-2.5” test pipe
-Chipped ECU
-VAFC

Timing seemed best at 16degrees. Tried 18 with some detonation - I believe that I need some colder plugs. I was using a stock heat range. Fuel pressure was 45psi at atmosphere. The fuel curve was pretty fat all the way through with a very fat spot around 5000 - 5500. No cam gears yet so my tuning was a little limited. We did about 12 runs and got very consistent data. The curves look much like any other GSR/TYPE R with that first hump in the torque curve coming in a little later at 4500rpm.

The torque peaked at 127 wheel at 6000rpm , and peak power was 175wheel at 7600pm. This was a net gain of 35 whp! My basline runs last summer, on the same dyno, was 140whp.
...so, I'm assuming, this a GSR/B18C longblock, correct?
Which program are you running on your ECU? Mugen? if so, did you try playing with different fuel pressures on your regulator?

Some people who've dynoed with this program (whom I've heard back from) say running 35-40psi showed the best results on the dyno, and close to stock ignition timing too (using an ITR/CTR cam setup).

[Modified by Katman, 11:48 AM 5/14/2002]


[Modified by Katman, 11:48 AM 5/14/2002]
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Old May 14, 2002 | 04:16 PM
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Default Re: Hatchback Dyno... Not too bad. (Ausmith)

"Member's Corner" is more suited for this type of thread.
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Old May 15, 2002 | 06:10 AM
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Default Re: Hatchback Dyno... Not too bad. (94gsr)

"Member's Corner" is more suited for this type of thread.
WTF - Here is the description from the Member's Corner forum:

"Discuss Non-Honda topics, Current Affairs, Life Problems and Board Improvement Suggestions. Thought provoking topics encouraged."

Now here is the description from the Tech forum:
"Discussion of engine and suspension theory, modification, and tuning."

Am I missing something here....

94GSR - go away.

Katman - I know we spoke via email, but I'll reply here as well (good for the peanut gallery)... This dyno session wasn't the greatest. There were too many people around asking too many stupid questions. I felt rushed and didn't take my time to save each graph and study it. I was making too many changes too quickly and the changes were fairly big.... since that session I sat down and wrote up a detailed procedure for next time based on some questions I have.

I will keep you all posted here in the TECH forum.

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Old May 15, 2002 | 09:09 AM
  #14  
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Default Re: Hatchback Dyno... Not too bad. (Ausmith)

"Member's Corner" is more suited for this type of thread.


Katman - I know we spoke via email, but I'll reply here as well (good for the peanut gallery)... This dyno session wasn't the greatest. There were too many people around asking too many stupid questions. I felt rushed and didn't take my time to save each graph and study it. I was making too many changes too quickly and the changes were fairly big.... since that session I sat down and wrote up a detailed procedure for next time based on some questions I have.

I will keep you all posted here in the TECH forum.
cool deal..i hit you up on IM.
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Old May 15, 2002 | 11:37 AM
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Default Re: This needs moved. (cr00klyn718)

Hey cr00klyn718, is that Iverson crossing over Jordan in your avatar. That **** was tite, sorry for the o-t post.
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Old May 15, 2002 | 01:24 PM
  #16  
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From: Jetsetter
Default Re: Hatchback Dyno... Not too bad. (Katman)

Better plots that you can actually see...



Notice how the torque curve closely follows the A/F graph.... hmm do you think there is room for improvment around 5k rpm?



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Old May 15, 2002 | 02:23 PM
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Default Re: Hatchback Dyno... Not too bad. (Ausmith)

Where did you dyno at?
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Old May 15, 2002 | 02:59 PM
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Default Re: Hatchback Dyno... Not too bad. (Ausmith)

You asked me where I would "suggest" would be a better forum for this thread, so I gave you my suggestion. There's no need to prompt a response from me just so that you can degrade/poke fun @ me based on said response, unless of course, you need that to feel better about yourself. If that's the case, then I hope it put a big smile on your face when you clicked the "Post" box on your computer, after typing your little reply - good for you Joey. If that's NOT the case, then know this; "Members Corner" USED to be the spot for OT threads. I suppose that I may have missed the change, so I will say that I was wrong & should not have posted in your thread to begin with. "I castrate myself before you, and beg for your forgiveness."
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Old May 16, 2002 | 05:25 AM
  #19  
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Default Re: Hatchback Dyno... Not too bad. (94gsr)

No I was wrong to put OT in the subject line. My question to you was rhetorical... but if your response had been EG+ or Type R, I would have posted there.

I wasn't trying to be hard or anything... I just totally disagreed with your response. When I said go away I mean go away from this thread.

CG
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Old May 16, 2002 | 05:10 PM
  #20  
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Default Re: Hatchback Dyno... Not too bad. (Ausmith)

Well, I shouldn't have tried to be a moderator so, my bad.

Back on the subject, do you have any idea when you'll get that beast to the strip? I'd love to see what a setup like that'll do down the 1320!
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Old May 16, 2002 | 07:31 PM
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Default Re: Hatchback Dyno... Not too bad. (94gsr)

with that horsepower in that chassis i am assuming low 14s to high 13s..
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Old May 17, 2002 | 05:38 AM
  #22  
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Default Re: Hatchback Dyno... Not too bad. (GSRTypeR)

with that horsepower in that chassis i am assuming low 14s to high 13s..
Nah.... I ran a 14.4 when it was making 140whp. I've now got 35whp more and the car weighs less. Lets talk weight reduction....
No rear interior
No AC
No PS
No Wipers
No Rear bumper beam
No HVAC
No Heater Core

Soon to have lexan rear windows and a carbon hood

You know, actually I hate drag racing and I doubt this car will ever see the 1320 again. The car is built for autocross and track events.

Seat of the pants says it's a low 13 on street tires with the autocross alignment.
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Old May 17, 2002 | 06:04 AM
  #23  
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Default Re: Hatchback Dyno... Not too bad. (Ausmith)

****, 14.4 before, now 35 more HP & probably over 100lbs of weight reduction... I doubt that low-13's would be a problem.

Where are you going to buy your Lex windows? I'm looking into this now but I don't want to drop a G for some pieces of Lex. I'd like to just buy some sheets & see if I can make that work, but don't know the best place to get the ****.
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Old May 17, 2002 | 06:13 AM
  #24  
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Default Re: Hatchback Dyno... Not too bad. (94gsr)

I think I'm just going to get the FAL kit. Its around $500 and it comes preformed.

If I was going to go custom I would just take it to King Motorsports and have them do it up...

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Old May 17, 2002 | 08:28 AM
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Default Re: Hatchback Dyno... Not too bad. (HXMan)

Where did you dyno at?
Guess nobody likes my questions.
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