What compression ratio is everyone running on built boosted motors? - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Camper · 08-27-2013, 07:22 PM

o man, am i gonna be the winner here?

10.7:1

E85+meth

TinyToasta · 08-28-2013, 01:11 PM

10.3 - 15psi - pump gas (93+)

realcanuk · 08-28-2013, 02:49 PM

9.9 to 1 here. 12 lbs on pump gas

10aSSee D · 08-28-2013, 05:16 PM

Quote:

Originally Posted by realcanuk

9.9 to 1 here. 12 lbs on pump gas

Man that's a lot of torque!!

pyr0b0y · 08-28-2013, 10:03 PM

9.7:1 on 91, 11lbs through twins.

ddck24 · 08-28-2013, 10:08 PM

10.6:1 on 16 lbs peak on meth and pump gas

Unavowed · 08-29-2013, 12:19 AM

10.1:1

K32 Camaro · 08-29-2013, 12:36 AM

It was recommended that I go with a 10:1 minimum with meth for a street/track car. Motors not built yet but it's next on the list.

Kiwi_Camaro_2010 · 08-29-2013, 01:51 AM

10.0:1 running 91 octane with 9.5 psi, 95 octane 10.5psi & 98 octane 12.5psi, 3 pulleys for all occasions.

Trob85 · 08-29-2013, 07:57 AM

I'm going to run a 9:3 compression but I'm going to be in the higher hp numbers so I will be relying on boost for most of the power.

H-E · 08-29-2013, 11:11 AM

11-1 for me and I run a Maggie....With our record holding GTO street car were at 10.4-1 runs 8.70s at 4000lbs... It uses a F1R at 24lbs and runs 93 0n the street...The old school guys like low cr,back when we used carbs it was a must but with todays pcm and fuel injection and a good tuner CR is your friend...That's my opion and its worked great for us,im actually nugeing at Farrad to up the CR on there record holding 5th gen ...

ayousef · 08-29-2013, 06:11 PM

Quote:

Originally Posted by SSE 4 2SS

9.7:1 for pump gas at 12 lbs on the street with 97 octane... With 429 CI, this is good for right at 900 RWHP

Racing we bump the boost to 25 lbs and run C16 race fuel... in the tank and to mix with the nitrous...With the 429 CI, this makes for a hell of a lot more power....

Unless you have HUGEEE turbos I think your 12psi 900rwhp estimate might be a little too optimistic?

2SS45th · 08-29-2013, 06:30 PM

He does have huge turbos, everything about his car is insane.

xjer22x · 08-29-2013, 06:48 PM

Quote:

Originally Posted by ayousef

Unless you have HUGEEE turbos I think your 12psi 900rwhp estimate might be a little too optimistic?

And its not an estimate. Its proven. Check out his build thread.

sent from my galaxy s3. that would explain the errors.

08-28-2013, 01:11 PM	#16
TinyToasta Drives: way too fast.... Join Date: May 2010 Location: Germany Posts: 297 View My Garage	10.3 - 15psi - pump gas (93+) __________________ custom build forged LSA, 379ci, TVS2300@15psi, 696rwhp/688ft-lbs, built by DH Individual, Customkingz, tuned by Jannetty Racing JRE rough idle cam, JRE ported lower intake manifold, OD cog drive, 6% OD crank pulley, ported ls3 heads, NW102mm TB, 1/2'' RDS spacer, IW 8-rib drive Pfadt Cradle Bushings, Arms & Rods, Pedders Supercar w/FE4 conversion, ZL1 sways, HE Twin Carbon Street Slayer, ZL1 Rear End (3.73) CTS-V Brake upgrade, Street: 22'' Vossen CV1, Strip: 18'' Forgestar F14 on MT Street Radials

08-28-2013, 02:49 PM	#17
realcanuk Drives: 2007 Corvette C6 983 RWHP Join Date: Dec 2011 Location: Montreal, Canada Posts: 690	9.9 to 1 here. 12 lbs on pump gas __________________ 2007 C6 vert, auto, F55, LT3 LME LS402 , WCCH 245 Heads, Pat G. Custom cam YSI / 3.0 pulley, ARH 1 7/8 headers, NPP Dewitts / dual spals, A&A dual pump fuel system. 3.42 polished gears, hardened shafts, Alky control meth, Cartech line lock, ECS axle loops, Trans brace, 6L80 built by me. ID 1000 injectors, comp rockers, Morel lifters, BT springs, Trend 3/8 pushrods, ATI 10% OD Damper Circle D Triple Disc stall 1009 RWHP @ 7000, 817 RWTQ @ 6000,

08-28-2013, 10:03 PM	#19
pyr0b0y need....more....hp Drives: The Neighbor Hater Join Date: Dec 2010 Location: San Mateo, CA Posts: 4,091	9.7:1 on 91, 11lbs through twins. __________________ BUILD THREAD BUILT AND MAINTAINED BY BLU808 Mast Motorsports Built LS3 Stroker 418, IPS GT35R Twin Turbos, Exedy GTO4XD Twin Disc Clutch, Aeromotive A1000 Eliminator Stealth Fuel Pump, AEM Meth Injection, DSS 1400hp Axels, BC Coilovers, Pfadt & BMR Suspension, Hawk HPS Pads, Drilled/Slotted Rotors, Hurst Shifter, Custom Roll Cage by Blu808, T3 Ports, 22" Custom Concave Mesh Rims

08-29-2013, 12:19 AM	#21
Unavowed Drives: Twin turbo G8 GXP Join Date: Dec 2012 Location: MD Posts: 454	10.1:1 __________________ 9.88 @ 144 https://youtu.be/nN0rz1RAcJw

08-29-2013, 01:51 AM	#23
Kiwi_Camaro_2010 Drives: Camaro 2SS/RS 2010 L99 Join Date: Jul 2012 Location: New Zealand Posts: 173 View My Garage	10.0:1 running 91 octane with 9.5 psi, 95 octane 10.5psi & 98 octane 12.5psi, 3 pulleys for all occasions. __________________ Camaro 2SS/RS 2010 / L99 / Whipple SC /Dynatech Headers & Catts (gutted), ID 850 injectors, ZL1 fuel pump +BAP & ADM pump controller, ZR1 3Bar MAP, Dual Elite Catch Cans, 91 octane ,Eibach sway bar kit , Driveshaft loop, oil cooler delete, ADM dual gauges (AFR/Boost) LC1 wideband controller, D/D, ARP stud kit ,Callies forged slayer crank 3.622", callies ultra rods, wiseco forged pistons, L99-LS3, rollmaster double row steel timing set & comps cam timing cover,blower cam 630/660 lift,3/8 pushrods, pac gear 8deg, yella terra ultra lites. LS9 head gaskets. Texas speed custom oil pump. Asm by me.

08-27-2013, 07:22 PM	#15
Camper Banned Drives: 10' 2SS LS3 M6 Join Date: May 2012 Location: Phoenix,AZ Posts: 1,370	o man, am i gonna be the winner here? 10.7:1 E85+meth

08-28-2013, 10:08 PM	#20
ddck24 Drives: 2012 Camaro 2ss 45th M6 Join Date: Jun 2012 Location: Fayetteville, Ar Posts: 410	10.6:1 on 16 lbs peak on meth and pump gas

08-29-2013, 12:36 AM	#22
K32 Camaro V8 lounge member #5 Drives: 12 2SS Synergy Camaro, 05 PontiacG6 Join Date: Dec 2011 Location: Ohio Posts: 1,301	It was recommended that I go with a 10:1 minimum with meth for a street/track car. Motors not built yet but it's next on the list.

08-29-2013, 07:57 AM	#24
Trob85 Svt lol Drives: 2011 ss inferno orange blown Join Date: Jan 2012 Location: Topeka Posts: 2,312	I'm going to run a 9:3 compression but I'm going to be in the higher hp numbers so I will be relying on boost for most of the power.

08-29-2013, 11:11 AM	#25
H-E Account Suspended Drives: 2010 zr1 Camaro 2011 vert Join Date: Apr 2013 Location: everywhere Posts: 1,121	11-1 for me and I run a Maggie....With our record holding GTO street car were at 10.4-1 runs 8.70s at 4000lbs... It uses a F1R at 24lbs and runs 93 0n the street...The old school guys like low cr,back when we used carbs it was a must but with todays pcm and fuel injection and a good tuner CR is your friend...That's my opion and its worked great for us,im actually nugeing at Farrad to up the CR on there record holding 5th gen ...

08-29-2013, 06:30 PM	#27
2SS45th Drives: 11 Seconds or Faster Join Date: May 2012 Location: Arvada, Colorado Posts: 2,797 View My Garage	He does have huge turbos, everything about his car is insane. __________________ I Ain't About That Stock Life.