EME's "Dragon Heart" 378 Ultra light ZR1 build!!!! - ZR-1 Net Registry Forums

batchman · 11-23-2016

Good luck on the major diet! I'm going to hope you can weigh stuff and post as it comes out (even though I haven't managed to do that) - great references for the rest of us!

I'll chime in with a data point for you, since I just corner weighted our car.

Added weight:
R&D Camber Brace
bigger front bar
reservoir shocks
hockey puck style steering rag joint

~Should be the same weight:
Front and rear springs
quick steering rack
FIC injectors
K&N filter
believe it had 1/2 tank of fuel but my sender is funky
driver at ~175lbs

Not sure what the difference may be:
huge CCWs/Hoosiers (light but maybe not a big difference vs stock)
Watson headers & Borla exhaust, were on the car already
Blingy aftermarket head unit but I suspect same Bose amps
open air filter lid

Lower weight:
no spare, tray, bag or jack
lightweight battery, I think it was 9lbs
removed A/C compressor & lines (next up, condenser)
removed air pump etc (still have to chase the valves out of the headers)
plastic headlights (might have been original but ours came with glass ones)
smaller rear bar

The bad news is, I wound up at 3500 with me in the seat. The good news is I was able to get within 15lbs cross weight with one turn of the screw.

Since S2000s and a couple of Porsches have moved into my class I think I'm going to be a bit overweight. Maybe I can get 125lbs out of it, but...

Best,
- Jeff

oricale · 11-26-2016

Hey Jeff,

Great points!, ..Most if not all that stuff is GONE, The MOST difficult thing will be to make it as light as we want and still make it street legal.....Touh to do, But we're working on it with carbon fiber hood, Lexan windows, removed dead weight(interior, spare, stereo, HVAC, AC, ect. So we are on the right track but we are still deep in the planning phase still yet. Also with many of the Big builds of the winter coming up we are taking it slowly.

We will weight the care and all removed equipment as soon as we can.

As shown earlier, I ported and polished the top end and now moving forward with the heads, liners, ALL FORGED bottom end(minus crank) and doing a lot of mock up for racing equipment(carbon seats, diffuser, cannards ect.

Its moving in a lighter direction!

Pete · 11-27-2016

Light Aluminum Water Pump and Power Steering pulley.

Half the weight of stockers.

https://sites.google.com/site/peteszr1garage/

.

11-23-2016	#1
batchman Join Date: Jun 2009 Location: I live at Devens, one run at a time Posts: 455	Re: EME's "Dragon Heart" 378 Ultra light ZR1 build!!!! Good luck on the major diet! I'm going to hope you can weigh stuff and post as it comes out (even though I haven't managed to do that) - great references for the rest of us! I'll chime in with a data point for you, since I just corner weighted our car. Added weight: R&D Camber Brace bigger front bar reservoir shocks hockey puck style steering rag joint ~Should be the same weight: Front and rear springs quick steering rack FIC injectors K&N filter believe it had 1/2 tank of fuel but my sender is funky driver at ~175lbs Not sure what the difference may be: huge CCWs/Hoosiers (light but maybe not a big difference vs stock) Watson headers & Borla exhaust, were on the car already Blingy aftermarket head unit but I suspect same Bose amps open air filter lid Lower weight: no spare, tray, bag or jack lightweight battery, I think it was 9lbs removed A/C compressor & lines (next up, condenser) removed air pump etc (still have to chase the valves out of the headers) plastic headlights (might have been original but ours came with glass ones) smaller rear bar The bad news is, I wound up at 3500 with me in the seat. The good news is I was able to get within 15lbs cross weight with one turn of the screw. Since S2000s and a couple of Porsches have moved into my class I think I'm going to be a bit overweight. Maybe I can get 125lbs out of it, but... Best, - Jeff __________________ [I]91 ZR-1 #1840, autocrossing in SCCA BSP. FIC S/S's DRM chip/Watson/Borla/lid/LW batt&headlights, springs, shocks, pads & lines, quick rack & Turn One, camber brace, 32/22mm sways, A/C halfway deleted 17x11 & 12 CCW's, 315 & 335 Hoosier A6s [/I]

11-26-2016	#2
oricale Join Date: Oct 2011 Location: STAFFORD VA, Posts: 576	Re: EME's "Dragon Heart" 378 Ultra light ZR1 build!!!! Hey Jeff, Great points!, ..Most if not all that stuff is GONE, The MOST difficult thing will be to make it as light as we want and still make it street legal.....Touh to do, But we're working on it with carbon fiber hood, Lexan windows, removed dead weight(interior, spare, stereo, HVAC, AC, ect. So we are on the right track but we are still deep in the planning phase still yet. Also with many of the Big builds of the winter coming up we are taking it slowly. We will weight the care and all removed equipment as soon as we can. As shown earlier, I ported and polished the top end and now moving forward with the heads, liners, ALL FORGED bottom end(minus crank) and doing a lot of mock up for racing equipment(carbon seats, diffuser, cannards ect. Its moving in a lighter direction! __________________ [B][I][COLOR=red]1990 ZR1[/COLOR][COLOR=black] [U]#00077 [COLOR=red]RED[/COLOR]/[COLOR=red]RED[/COLOR] (10Y022 PEP CAR) [/U][/COLOR][/I][/B][B][I][COLOR=red]1991 ZR1[/COLOR][COLOR=black] [U]#00517 ("Irene")[COLOR=red]WHITE[/COLOR]/[COLOR=red]RED-SOLD:cry:[/COLOR] [B][/B] [/U][/COLOR][/I][/B][B][I][COLOR=red]1992 ZR1[/COLOR][COLOR=black] [U]#00445("The Revenant")[COLOR=red][COLOR="Black"]BLACK [/COLOR][/COLOR]/[COLOR=red]RED(2016 T.O.D!) [/COLOR] [/U][/COLOR][/I][/B] [B][I][COLOR=red]2009 [COLOR=red]Z06!![COLOR=black]BLK/BLK rare Linen interior[/COLOR] 707HP!![/COLOR] [/COLOR][/I][/B] [B][I][COLOR=red]2006[/COLOR] BLK/BLK Z51 (Just SICK FAST!)SOLD)[/I][/B] [B][I]1996 BLK/BLK LT4 Grnsprt(sold...Twice!)[/I][/B] [B][I]1991 RED/REDL98(Fell off the shipping truck:([/I][/B] [B][I]1980 BLK/RED L82(Sold)[/I][/B] [B][I][B][I]1990[/I][/B] RED/BLK(sold.....In Japan)[/I][/B] [I][COLOR=black][B][I]2006[/I][/B][/COLOR][/I] [COLOR=red]Mustang GT[/COLOR] ([B][I]mach 1[/I][/B])[B](sold)[/B] [COLOR=black][B][I]1969[/I][/B][/COLOR] [COLOR=red]Mach[/COLOR] [B][I]1(sold in Japan)[/I][/B] [COLOR=black][B][I]1969[/I][/B][/COLOR] [COLOR=red]Mach[/COLOR] [B][I]1#2(sold)[/I][/B] [B][I]WAZOO Member...[/I][/B] [url]www.evolution-motorsport.com[/url] facebook/evolutionmotorsportengineering Your Local [url]www.Amsoil.com[/url] dealer/user.. Victory Loves Preparation

11-27-2016	#3
Pete Join Date: Dec 2003 Location: Chicagoland,IL Posts: 2,680	Re: EME's "Dragon Heart" 378 Ultra light ZR1 build!!!! Light Aluminum Water Pump and Power Steering pulley. Half the weight of stockers. https://sites.google.com/site/peteszr1garage/ . __________________ '91 #1635 PoloGreen 350 LT5 11.09 @ 129.27 11.04 @ 128.86 474RWHP 400RWTQ http://www.youtube.com/watch?v=SFNFOhGGlR4 http://www.youtube.com/watch?v=ZlRIOMwaDYY https://sites.google.com/site/peteszr1garage Last edited by Pete; 11-27-2016 at 09:53 AM.