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Old 07-22-2020   #1
Top Toy
 
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Default 368 LPE/Haibeck Dyno Results

Time for another good dyno report... Marc just finished a round of upgrades on my new-to-me '95 (replaced my wrecked '93 last year). The car was originally modified to a 368 by Lingenfelter, then breathed on by DRM but never reached its potential. Everything was pretty much sub-optimal. Last recorded dyno before sending the car off to Marc was around 420 RWHP. Pretty mediocre for a 368. Pulled 486 SAE RWHP/405 ft. lbs. torque on the dyno yesterday. That equates to 572 crank HP. Not bad for a 30+ year old design. Kudos to Marc for another outstanding piece of work!
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File Type: jpg Derr 95 ZR-1 Dyno Run, 21 July 2020.jpg (107.3 KB, 152 views)
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'95 ZR-1, aqua/gray, #167
368 LPE/Haibeck, Web cams, Stainless Works headers, B&B Fusion exhaust, 18" Fikse wheels, Alcon brakes, lowered. 491 SAE RWHP.
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Old 07-22-2020   #2
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Default Re: 368 LPE/Haibeck Dyno Results

486 SAE at the tire?
Wow. Impressive. Can beat Haibeck's stuff, that's for sure.

At what RPM were peak power and torque?
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Old 07-22-2020   #3
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Default Re: 368 LPE/Haibeck Dyno Results

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Originally Posted by Hib Halverson View Post
486 SAE at the tire?
Wow. Impressive. Can beat Haibeck's stuff, that's for sure.

At what RPM were peak power and torque?
Peak torque around 5200 RPM and power basically flat from 6500 to 7100 RPM.
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'95 ZR-1, aqua/gray, #167
368 LPE/Haibeck, Web cams, Stainless Works headers, B&B Fusion exhaust, 18" Fikse wheels, Alcon brakes, lowered. 491 SAE RWHP.
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Old 07-22-2020   #4
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Default Re: 368 LPE/Haibeck Dyno Results

Wow that is something. Did Mark just computer tune it only? Did he re time the cams?
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Old 07-22-2020   #5
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Default Re: 368 LPE/Haibeck Dyno Results

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Originally Posted by Top Toy View Post
Peak torque around 5200 RPM and power basically flat from 6500 to 7100 RPM.

Just a guess, but I'll bet you'll be replacing the rear tires fairly often.......


Enjoy the madness!!!


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Old 07-22-2020   #6
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Default Re: 368 LPE/Haibeck Dyno Results

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Wow that is something. Did Mark just computer tune it only? Did he re time the cams?
Pure stock, just a tune... kidding, of course. Top end porting (including siamesed plenum and injector housings), medium weight (20 lb.) flywheel, cams, headers and 3" exhaust. Well, at least the air filter is stock.😏
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'95 ZR-1, aqua/gray, #167
368 LPE/Haibeck, Web cams, Stainless Works headers, B&B Fusion exhaust, 18" Fikse wheels, Alcon brakes, lowered. 491 SAE RWHP.
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Old 07-23-2020   #7
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Default Re: 368 LPE/Haibeck Dyno Results

When you say "cams"...do you mean stock cams which have had their timing changed or do you mean cams with more aggressive profiles.

If the latter tell us about the cam profiles.
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Old 07-23-2020   #8
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Default Re: 368 LPE/Haibeck Dyno Results

Wow Dennis! That?s awesome. Enjoy the new power in your new toy!! [emoji1303]🤙🏼


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Old 07-23-2020   #9
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Default Re: 368 LPE/Haibeck Dyno Results

Quote:
Originally Posted by Hib Halverson View Post
When you say "cams"...do you mean stock cams which have had their timing changed or do you mean cams with more aggressive profiles.

If the latter tell us about the cam profiles.
Custom cams Intake 243 deg. duration, 0.449" lift
Exhaust 222 deg. duration, 0.442" lift
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'95 ZR-1, aqua/gray, #167
368 LPE/Haibeck, Web cams, Stainless Works headers, B&B Fusion exhaust, 18" Fikse wheels, Alcon brakes, lowered. 491 SAE RWHP.
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Old 07-23-2020   #10
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Default Re: 368 LPE/Haibeck Dyno Results

Are you using the stock clutch with the 20lb flywheel?
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