bigger cams!....

BakerFX4 · November 2nd, 2011, 01:17 PM

Since Im going to be redoing my motor, I think I want to go with larger cams. Ill go ahead and have the pistons notched so what "bigger" cams would work out with about 20 psi, mmr 900, ported heads, eddie intake?

wtfcrunch · November 2nd, 2011, 01:36 PM

COMP Cams: Xtreme Energy™, XE270AH <BR> Excellent Torque, Better Low & Mid-Range Torque w/ Power

TaintedStang · November 2nd, 2011, 01:38 PM

Make me a deal on your old cams. You keeping the old heads?

RZNCAIN · November 2nd, 2011, 01:39 PM

Baker confuses me, I thought you were getting rid of the car.

TaintedStang · November 2nd, 2011, 01:42 PM

Originally Posted by RZNCAIN

I'm a little teapot short and stout, here is my handle,here is my spout.

Don't say those words around here mister!

RZNCAIN · November 2nd, 2011, 01:43 PM

BakerFX4 · November 2nd, 2011, 01:43 PM

i was going to before i knew what my issue was. I cant sell the car "broke". I dont wanna take that big of a loss on it. But if im going to do it again, I want to do it nice.

Anyway, I know blowers dont usually run too big of cams but I feel like im over these street 292's and could use a lil more.

Shaun03GT · November 2nd, 2011, 02:13 PM

Do the r292s!!!! Id be interested in those s292s if you sell em. Also, looks into mhs stage 3 blower cams

Nitmare67 · November 2nd, 2011, 04:05 PM

Glad to see you doing it up right. I hope you fall back in love with that car. Crying shame to take a loss on such a nice machine. With what that car is and now will be it would have already earned its lifetime membership into my garage.

zinc-vert02 · November 2nd, 2011, 04:07 PM

this is intesting

jivepepper · November 2nd, 2011, 04:49 PM

Originally Posted by BakerFX4

Since Im going to be redoing my motor, I think I want to go with larger cams. Ill go ahead and have the pistons notched so what "bigger" cams would work out with about 20 psi, mmr 900, ported heads, eddie intake?

I run 20psi with my non degreed HP S292 cams. I thought about going to the HP R292 cams but the smaller lift S cams perform so well. I hit 20 psi by 6300 rpm but it flattens out clear to 7K. That's because of the crappy Patriot valve springs start bleeding boost around 20 psi. Especially with a turbo or PD blower where it hits max boost sooner. I should have been close to 24 psi by 6800 rpm. It made power to 6800 and slowly lost 15-20 hp by 7k. Once I up grade the springs and degree the cams I would like to be the first 4.6l 2V to break 700 with a T-trim as far as I know. I usually see 25-30+ HP increase just going to another Dynojet because the one where I tune at is an antique lol. Almost all the traction surface is wore off.

ytngt · November 2nd, 2011, 06:58 PM

Baker, something that you rarely hear people discuss when talking about cams is, dynamic compression ratio. Basically this is taking cam timing into account when calculating compression ratio. Why, well because cams determine when the intake valve closes. Why is this important? Well "big cams" like comp 278s, leave the intake valve open much later than normal. So what does that mean? Well it means that the piston is traveling up the bore before the intake valve closes. Well so what? Ok that means that at low rpms some of the air/fuel in the cylinder get pushed back into the intake by the piston. At higher rpms this does not happen because of "ram tuning" effect and very short cycle times.

http://www.wallaceracing.com/dynamic-cr.php

So to summarize, big cams "bleed" intake cylinder charge back into the intake at low rpms but not at higher rpms.

P.S the most important thing that you left out is what octane?

BakerFX4 · November 2nd, 2011, 07:05 PM

Thats another thing john.... Since I hardly drive the car and it will be damn near bulletproof after this, I figured I would run on e85. We have it at a couple locations in town. So why not? Its not drove that much so its not "so expensive". Ill have to up my injectors from 60's to 80's. But If Im going to go MMR 900, I might as well put my mods to work!

TaintedStang · November 2nd, 2011, 07:10 PM

Need a nitrous kit?

Shaun03GT · November 2nd, 2011, 07:21 PM

Paul i might be interested in almost all the shit your selling. When do u plan on ripping it apart and selling stuff? Is like the rods, pistons, cams, an objectors

ytngt · November 2nd, 2011, 07:27 PM

Originally Posted by BakerFX4

Thats another thing john.... Since I hardly drive the car and it will be damn near bulletproof after this, I figured I would run on e85. We have it at a couple locations in town. So why not? Its not drove that much so its not "so expensive". Ill have to up my injectors from 60's to 80's. But If Im going to go MMR 900, I might as well put my mods to work!

.

Damn man, you trying to copy my car? J/K

I am going E85 right now. Putting in a big return fuel system with dinky little 80# injectors. BTW you want bigger than 80# for e85.

I would go with some medium size cams for E85 and 20-25 psi. Honestly the cams you already have would be good or step up to comp 270s. Do not go 278s unless you are off your rocker, like me.

BakerFX4 · November 2nd, 2011, 07:35 PM

Yea if I would need to stay medium or so, then I really like the ones im running. I dont mind overspinning my blower since its rare that I do anything with it.. Im at 18-20 psi right now. What size injectors then? We need to get together more man.... need to make these stangs known!

Shaun.... work something out with me. 8 forged MMR H beams, 8 manley 18cc pistons, and the 60's. Even though the rod had a spun bearing, i WILL be getting it and the rest of them checked to make sure everything is up to spec before I sell em. text me bout it if you got some change.... Ill pull the bastard this weekend.

Shaun03GT · November 2nd, 2011, 08:14 PM

Oh take Ur time bro lol. Iwont have some money for a little bit. Just started school an shit.

ytngt · November 2nd, 2011, 08:20 PM

Baker, I wanted to go with Bosch 105s but got a good deal on 80's. I am planning on running higher than normal base fuel pressure with my new return system to compensate for the small 80# injectors. My plan is to utilize some spray to make a little extra power on top of 20-25 psi from the KB 2.8H. When I get it going again you need to take a ride, I mean flight, in it... You rode in it on super low timing break in tune with a measly 15 psi. It's not quite the same now.

limited · November 2nd, 2011, 09:14 PM

have you looked into Norm's garage? mhs? bigger is not always better(CAMS!!)

even cms stage 3's work well. i know they are smaller than what you have. but the motor i bought them from made 771rwhp with a d1 with 20 something psi. It was in ff&mm and jpc tuned it.

Point is, don't get stuck on the bigger is better thing

November 2nd, 2011, 01:17 PM	#1
BakerFX4 I Post Entirely Way Too Much Join Date: Dec 2007 Location: Louisiana Posts: 16,252 iTrader: 14 reviews	bigger cams!.... Since Im going to be redoing my motor, I think I want to go with larger cams. Ill go ahead and have the pistons notched so what "bigger" cams would work out with about 20 psi, mmr 900, ported heads, eddie intake? __________________ 4.75 MMR 900se Livernois ported heads HP 292s blower cams Procharger D1sc at 20+ psi IW 15% OD pulley (and more bolt ons) E85 Tune/numbers coming shortly!!

November 2nd, 2011, 01:36 PM	#2
wtfcrunch Hardcore Enthusiast 2003 Mustang GT Prem Conv Join Date: Mar 2011 Location: Gloucester, VA Posts: 1,212 iTrader: 0 reviews	COMP Cams: Xtreme Energy™, XE270AH <BR> Excellent Torque, Better Low & Mid-Range Torque w/ Power __________________ BURN RUBBER NOT YOUR SOUL TylerL idgafMustangClub

November 2nd, 2011, 01:38 PM	#3
TaintedStang MM's Taint Shaver! 2003 Mustang GT Join Date: Dec 2009 Location: Oregon Posts: 6,528 iTrader: 5 reviews	Make me a deal on your old cams. You keeping the old heads? __________________

November 2nd, 2011, 01:39 PM	#4
RZNCAIN Shelby's Minion 2007 Mustang Shelby GT (Mach1) Sept. '10 ROTM Join Date: Jul 2010 Location: WI Posts: 11,489 iTrader: 2 reviews	Baker confuses me, I thought you were getting rid of the car. __________________ Sponsored by Specialty Coatings Car Salesman Club- Founder -------------------------- 2007 Shelby GT- Hardparked 2003 Mach 1- Hardparked 1988 LX 5.0- Umm...Driver?

November 2nd, 2011, 01:43 PM	#6
RZNCAIN Shelby's Minion 2007 Mustang Shelby GT (Mach1) Sept. '10 ROTM Join Date: Jul 2010 Location: WI Posts: 11,489 iTrader: 2 reviews	__________________ Sponsored by Specialty Coatings Car Salesman Club- Founder -------------------------- 2007 Shelby GT- Hardparked 2003 Mach 1- Hardparked 1988 LX 5.0- Umm...Driver?

November 2nd, 2011, 02:13 PM	#8
Shaun03GT I Post Entirely Way Too Much 2003 Mustang GT 1/8 - 7.92 @ 91.13mph 1/4 - 12.21 @ 115.84mph Join Date: Sep 2009 Location: Weymouth, MA Posts: 13,446 iTrader: 12 reviews	Do the r292s!!!! Id be interested in those s292s if you sell em. Also, looks into mhs stage 3 blower cams __________________ Vortech V1 Intercooled @ 11psi 394rwhp/392rwtq @ 9.5psi 415rwhp/400rwtq @ 11psi on Methanol Tuned By: Pete @ Performance Dyno Affordable Supercharger Build Guide Supercharger Info for Noobs

November 2nd, 2011, 04:05 PM	#9
Nitmare67 Hardcore Enthusiast Join Date: Feb 2010 Posts: 1,391 iTrader: 0 reviews	Glad to see you doing it up right. I hope you fall back in love with that car. Crying shame to take a loss on such a nice machine. With what that car is and now will be it would have already earned its lifetime membership into my garage. __________________ 99 Mustang GT 446rwhp, Vortech Aftercooled, Killer Chiller @12lbs, HPX, 3.73s, MGW, Battery Relocation, Intercooler Tank Relocated, CF DF clutch, Steeda Quick Release Quadrant, 75mm TB, Ported C&L Plenum, Stock PI Cams Advance 4 degrees, Pro Chamber

November 2nd, 2011, 04:07 PM	#10
zinc-vert02 Bringing Yellow Back 2002 mustang gt 12.2 at 117 Join Date: Apr 2010 Location: WISCONSIN Posts: 9,967 iTrader: 1 reviews	this is intesting __________________ SOON TO BE 5.4 3V POWERD WITH A ROUSH CHARGER HELPING IT BAMA Performance Drag Team Member #4

November 2nd, 2011, 06:58 PM	#12
ytngt Enthusiast 2002 Mustang GT Join Date: Apr 2010 Location: LA Posts: 953 iTrader: 0 reviews	Baker, something that you rarely hear people discuss when talking about cams is, dynamic compression ratio. Basically this is taking cam timing into account when calculating compression ratio. Why, well because cams determine when the intake valve closes. Why is this important? Well "big cams" like comp 278s, leave the intake valve open much later than normal. So what does that mean? Well it means that the piston is traveling up the bore before the intake valve closes. Well so what? Ok that means that at low rpms some of the air/fuel in the cylinder get pushed back into the intake by the piston. At higher rpms this does not happen because of "ram tuning" effect and very short cycle times. http://www.wallaceracing.com/dynamic-cr.php So to summarize, big cams "bleed" intake cylinder charge back into the intake at low rpms but not at higher rpms. P.S the most important thing that you left out is what octane? __________________

November 2nd, 2011, 07:05 PM	#13
BakerFX4 I Post Entirely Way Too Much Join Date: Dec 2007 Location: Louisiana Posts: 16,252 iTrader: 14 reviews	Thats another thing john.... Since I hardly drive the car and it will be damn near bulletproof after this, I figured I would run on e85. We have it at a couple locations in town. So why not? Its not drove that much so its not "so expensive". Ill have to up my injectors from 60's to 80's. But If Im going to go MMR 900, I might as well put my mods to work! __________________ 4.75 MMR 900se Livernois ported heads HP 292s blower cams Procharger D1sc at 20+ psi IW 15% OD pulley (and more bolt ons) E85 Tune/numbers coming shortly!!

November 2nd, 2011, 07:10 PM	#14
TaintedStang MM's Taint Shaver! 2003 Mustang GT Join Date: Dec 2009 Location: Oregon Posts: 6,528 iTrader: 5 reviews	Need a nitrous kit? __________________

November 2nd, 2011, 07:21 PM	#15
Shaun03GT I Post Entirely Way Too Much 2003 Mustang GT 1/8 - 7.92 @ 91.13mph 1/4 - 12.21 @ 115.84mph Join Date: Sep 2009 Location: Weymouth, MA Posts: 13,446 iTrader: 12 reviews	Paul i might be interested in almost all the shit your selling. When do u plan on ripping it apart and selling stuff? Is like the rods, pistons, cams, an objectors __________________ Vortech V1 Intercooled @ 11psi 394rwhp/392rwtq @ 9.5psi 415rwhp/400rwtq @ 11psi on Methanol Tuned By: Pete @ Performance Dyno Affordable Supercharger Build Guide Supercharger Info for Noobs

November 2nd, 2011, 07:35 PM	#17
BakerFX4 I Post Entirely Way Too Much Join Date: Dec 2007 Location: Louisiana Posts: 16,252 iTrader: 14 reviews	Yea if I would need to stay medium or so, then I really like the ones im running. I dont mind overspinning my blower since its rare that I do anything with it.. Im at 18-20 psi right now. What size injectors then? We need to get together more man.... need to make these stangs known! Shaun.... work something out with me. 8 forged MMR H beams, 8 manley 18cc pistons, and the 60's. Even though the rod had a spun bearing, i WILL be getting it and the rest of them checked to make sure everything is up to spec before I sell em. text me bout it if you got some change.... Ill pull the bastard this weekend. __________________ 4.75 MMR 900se Livernois ported heads HP 292s blower cams Procharger D1sc at 20+ psi IW 15% OD pulley (and more bolt ons) E85 Tune/numbers coming shortly!!

November 2nd, 2011, 08:14 PM	#18
Shaun03GT I Post Entirely Way Too Much 2003 Mustang GT 1/8 - 7.92 @ 91.13mph 1/4 - 12.21 @ 115.84mph Join Date: Sep 2009 Location: Weymouth, MA Posts: 13,446 iTrader: 12 reviews	Oh take Ur time bro lol. Iwont have some money for a little bit. Just started school an shit. __________________ Vortech V1 Intercooled @ 11psi 394rwhp/392rwtq @ 9.5psi 415rwhp/400rwtq @ 11psi on Methanol Tuned By: Pete @ Performance Dyno Affordable Supercharger Build Guide Supercharger Info for Noobs

November 2nd, 2011, 08:20 PM	#19
ytngt Enthusiast 2002 Mustang GT Join Date: Apr 2010 Location: LA Posts: 953 iTrader: 0 reviews	Baker, I wanted to go with Bosch 105s but got a good deal on 80's. I am planning on running higher than normal base fuel pressure with my new return system to compensate for the small 80# injectors. My plan is to utilize some spray to make a little extra power on top of 20-25 psi from the KB 2.8H. When I get it going again you need to take a ride, I mean flight, in it... You rode in it on super low timing break in tune with a measly 15 psi. It's not quite the same now. __________________

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November 2nd, 2011, 09:14 PM	#20
limited Premium Member 99 limited edition vert Join Date: Mar 2007 Location: Tacoma,Washington Posts: 3,297 iTrader: 0 reviews	have you looked into Norm's garage? mhs? bigger is not always better(CAMS!!) even cms stage 3's work well. i know they are smaller than what you have. but the motor i bought them from made 771rwhp with a d1 with 20 something psi. It was in ff&mm and jpc tuned it. Point is, don't get stuck on the bigger is better thing __________________ KB'd 446rwhp/451rwtq, Mustang Dyno http://www.youtube.com/watch?v=3ZDpQ0EEm1M Tuned by Joe at http://www.tricktuners.com

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