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Another completed DeMan 4.5L 718 - Impression/review!

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Old 01-26-2022 | 01:22 PM
  #16  
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Originally Posted by SLATETT
All - my '20 GT4 6MT (bought used last Nov w/450 miles and ~ w/1,025 miles now) has been at DeMan since mid-Dec and assembly will begin mid next week - 4.5L, 2-5 gears, LSD, LW clutch, OAP and catted headers .. will be reusing the OEM PSE ... more to come ..
You are up next on the assembly line! Everything is in place and ready to go
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Old 01-26-2022 | 03:17 PM
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Since you're in the chicagoland area, @JAhmed, I'd love to meet up sometime to hear how it sounds once it warms up!!
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Old 01-26-2022 | 03:38 PM
  #18  
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Todays dyno results for @JAhmed

This one sounded amazing with the relatively open exhaust system.

This sheet is the corrected (11%) representing Crank HP & TQ.





This is the delivered to the "wheels" chart with no compensation.
6 back to back runs that got stronger and stronger as it warmed up the trans and finished adapting itself.

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Old 01-26-2022 | 04:08 PM
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Originally Posted by Rick DeMan
Todays dyno results for @JAhmed

This one sounded amazing with the relatively open exhaust system.

... snip ...
@Rick DeMan, you're killing me!
Where is the video?
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Old 01-26-2022 | 04:14 PM
  #20  
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@JAhmed the instant this thing is back in town - we need to meet at MW.
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Old 01-26-2022 | 04:17 PM
  #21  
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Originally Posted by Rick DeMan
Todays dyno results for @JAhmed
Over 100 ft-lbs per liter is something I've never seen for an NA motor on pump gas. Was this race fuel or just high octane pump gas? Very impressive
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Old 01-26-2022 | 04:18 PM
  #22  
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That is quite impressive dyno results! Jeez! That thing is a frickin rocket
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Old 01-26-2022 | 04:23 PM
  #23  
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Originally Posted by JAhmed
Thanks Faraz, and a big thank you to @DeMan Motorsport for getting this done in an impressive time frame and accommodating my younger brother along the way.

@SpeedySpidey and some others were asking for my complete build so here is the rundown...I will try and add more details as I can/if people have questions.

2020 718 Spyder - factory buckets, CCB, PECLA delivery
DeMan 4.5L
DeMan catted headers
Soul Resonated RACE exhaust
DeMan 2-5 gearset
Numeric Racing shifter/cables
Drexler 50/60 diff
E-Motion Engineering suspension package (every component available, including KW Clubsport 3 way dampers)
E-Motion Engineering/SONOFCOBRA underbody aero
Forgeline GA3R wheels
Shaved 3rd brake light/XM antenna
Full paint correction/PPF/Ceramic/the works by Glistening Perfection

While I'd love to say the project is now complete, we all know that something like this is never "done". Custom made carbon composite body panels, center-lock hub conversion and integration of a Clubsport airbox are some ideas swirling around in my head...
I love that you went all out on your build. Did everything I would do.

Can you go over the Drexler diff? Is this what DeMan offers or did you do this on your own?
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Old 01-26-2022 | 04:39 PM
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Originally Posted by GrantG
Over 100 ft-lbs per liter is something I've never seen for an NA motor on pump gas. Was this race fuel or just high octane pump gas? Very impressive
Agree....gotta say that 100lb-ft per liter is unheard of from an NA motor. Very impressive if this is true, and more than any other car I know of. Does anyone know of any other car that is capable of this?
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Old 01-26-2022 | 04:48 PM
  #25  
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now I know what to do instead of getting a GT4RS
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Old 01-26-2022 | 05:02 PM
  #26  
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I think you win the most modified GT4/Spyder award.

Look forward to hearing more about impressions when you get the car back. Hopefully a video or two follows. Congrats!

As far as prices go, still cheaper than getting into a GT4RS right now. And you can still drop the top.
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Old 01-26-2022 | 05:02 PM
  #27  
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Originally Posted by rooster17
I think you win the most modified GT4/Spyder award. Look forward to hearing more about impressions when you get the car back. Hopefully a video or two follows. Congrats! As far as prices go, still cheaper than getting into a GT4RS right now. And you can still drop the top.
​​​​​​​and a manual transmisson
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Old 01-26-2022 | 05:18 PM
  #28  
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Those whp/wtq figures are the stuff of dreams. And all with shorter gears and roofless... what an experience it must be!
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Old 01-26-2022 | 05:48 PM
  #29  
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I love the numbers this deman 4.5 produces but the price is crazy expensive, you never know one day
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Old 01-26-2022 | 06:08 PM
  #30  
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Originally Posted by Tay101
I love that you went all out on your build. Did everything I would do.

Can you go over the Drexler diff? Is this what DeMan offers or did you do this on your own?
We offer our own LSD for the GT4/Spyder, this was previously installed and is a high quality unit so it remained
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