big N/A cams good with a turbo?

aarongt2000 · January 31st, 2012, 01:00 PM

i have a plan to do some big cams for my car to get it running good all motor. probably something from MHS since they have lots of testing done with their grinds. and i was wondering if anyone knows what makes a good turbo cam. i figure with my buddy knowing how to weld, and knowing a stock motor responds well to small boost numbers, i could run a very cheap turbo or two and maybe try making some headers on our own. i know someone posted their own custom headers on here i liked them a lot. so what im asking is, is an all motor camshaft ideal for a turbo cam seing there is pressure in both the intake and exhaust? im not sure if im on the right track. let me know what you think

NickPohlAandP · January 31st, 2012, 01:25 PM

No, to optimize a forced induction setup you really need a cam designed for it. This is one reason why I recently decided to NOT go turbo right now since I just dumped a pile of money into my NA build.

With FI, your intake and exhaust centerlines will move to optimize your power adder. The most significant change would be to advance your ehaust lobe to get the spent charge out sooner. With a turbo or a supercharger you don't need the overlap to scavenge exhaust with your intake. I'm seeing this perfect in my head but right now it's not coming out that great. Kinda busy at work. I hope that gives you an idea though.

Mod Mustang Racing · January 31st, 2012, 01:30 PM

What makes a good turbo cam is minimal overlap, this helps prevent from bleeding off boost and helps build cylinder pressure. You should look at the MMR turbo cams, hands down the best and fastest in the business, here is a link to some more info, videos and dyno sheets. Something like our stage 3 is suggested for you.

New Product Release- 2V, 3V and 4V Custom Turbo Cams by MMR Stages 1-3 available

MMR

NickPohlAandP · January 31st, 2012, 01:30 PM

Scroll through here and look at the intake and ehaust centerlines on the different types of cams (NA, Blower, Turbo, Nitrous) and you will see what I'm talking about.

ModularHeadShop Bullet Cams NA specific cams

aarongt2000 · January 31st, 2012, 01:59 PM

thanks guys ill be looking into this quite a bit.

aarongt2000 · February 2nd, 2012, 11:53 PM

lookin around for ideas with piping routes. and i came across a few setups with no intercoolers. It is a much more attractive route for me as i want to try and make my own setup. so with 10 psi MAX. Is that okay? DEZ racing is very close by so if it is a tuning issue im confident with his ability. i dont want to push it over 400hp.

aarongt2000 · February 3rd, 2012, 12:33 AM

anyone? would this be comparable to a non intercooled vortech?

RFM 40th V6 · February 3rd, 2012, 01:08 AM

You need an intercooler to make any good power with a turbo. The air gets even hotter because of the exhaust gases that are used to drive the compressor.

Also I used NA cams in my setup and went to stage 2 turbo cams later. Turbo cams seem to hit boost earlier and also have a harder hit when boost kicks in.

NA cams took forever to spool and didn't have the umph the turbo cams do.

Eagle2000GT · February 3rd, 2012, 01:13 AM

Originally Posted by RFM 40th V6

NA cams took forever to spool and didn't have the umph the turbo cams do.

That is probably because they are letting the boost out the exhaust port before the valves close.

aarongt2000 · February 3rd, 2012, 01:37 AM

Originally Posted by RFM 40th V6

You need an intercooler to make any good power with a turbo. The air gets even hotter because of the exhaust gases that are used to drive the compressor.

Also I used NA cams in my setup and went to stage 2 turbo cams later. Turbo cams seem to hit boost earlier and also have a harder hit when boost kicks in.

NA cams took forever to spool and didn't have the umph the turbo cams do.

good to know about the cams being a lot better for spool time and power

dhicks7806 · February 3rd, 2012, 01:53 AM

It really would not be worth the cost savings to run a non intercooled setup...you can pick up a decent front mount relatively cheap and fab your own piping. If you are going to go through all the work to fab the headers and such, you might as well toss a front mount on it. My .02

Sent from my Autoguide iPhone app

BigEag205 · February 3rd, 2012, 02:19 AM

An intercooler is a must for a turbo set-up. The heat would kill your build without one.

aarongt2000 · February 3rd, 2012, 02:23 AM

Originally Posted by dhicks7806

It really would not be worth the cost savings to run a non intercooled setup...you can pick up a decent front mount relatively cheap and fab your own piping. If you are going to go through all the work to fab the headers and such, you might as well toss a front mount on it. My .02

Sent from my Autoguide iPhone app

do you guys know anyone with a highly rated intercooler for twin inputs and a single exit?

dhicks7806 · February 3rd, 2012, 02:59 AM

Originally Posted by aarongt2000

do you guys know anyone with a highly rated intercooler for twin inputs and a single exit?

cxracing.com: Universal Twin Turbo BigCore 3.5" Thickness Intercooler 27"x16.5"x3.5", Ford Mustang Camaro Chevy

CXracing has nice stuff

RFM 40th V6 · February 3rd, 2012, 05:26 AM

Originally Posted by Eagle2000GT

That is probably because they are letting the boost out the exhaust port before the valves close.

Yes. You are correct. Because NA cams are meant to scavenge both valves hang open and bleed off cylinder pressure instead of keeping all the boost it can in the combustion chamber. Which results in a weak hit of power and a slow spool time.

January 31st, 2012, 01:00 PM	#1
aarongt2000 Regular 2000 mustang gt 13.7 @102 Join Date: Nov 2011 Location: wareham ma Posts: 235 iTrader: 0 reviews	big N/A cams good with a turbo? i have a plan to do some big cams for my car to get it running good all motor. probably something from MHS since they have lots of testing done with their grinds. and i was wondering if anyone knows what makes a good turbo cam. i figure with my buddy knowing how to weld, and knowing a stock motor responds well to small boost numbers, i could run a very cheap turbo or two and maybe try making some headers on our own. i know someone posted their own custom headers on here i liked them a lot. so what im asking is, is an all motor camshaft ideal for a turbo cam seing there is pressure in both the intake and exhaust? im not sure if im on the right track. let me know what you think __________________

January 31st, 2012, 01:25 PM	#2
NickPohlAandP I like boobs!!! 2000 GT convertible dunno Join Date: May 2011 Location: Brooklet, GA Posts: 2,827 iTrader: 2 reviews	No, to optimize a forced induction setup you really need a cam designed for it. This is one reason why I recently decided to NOT go turbo right now since I just dumped a pile of money into my NA build. With FI, your intake and exhaust centerlines will move to optimize your power adder. The most significant change would be to advance your ehaust lobe to get the spent charge out sooner. With a turbo or a supercharger you don't need the overlap to scavenge exhaust with your intake. I'm seeing this perfect in my head but right now it's not coming out that great. Kinda busy at work. I hope that gives you an idea though. __________________ Last time you voted to prove you aren't racist. This time prove you're not an IDIOT!!! My Garage--->http://www.moddedmustangs.com/forums...-member-46919/

January 31st, 2012, 01:30 PM	#3
Mod Mustang Racing Regular Join Date: Aug 2011 Posts: 122 iTrader: 0 reviews	What makes a good turbo cam is minimal overlap, this helps prevent from bleeding off boost and helps build cylinder pressure. You should look at the MMR turbo cams, hands down the best and fastest in the business, here is a link to some more info, videos and dyno sheets. Something like our stage 3 is suggested for you. New Product Release- 2V, 3V and 4V Custom Turbo Cams by MMR Stages 1-3 available MMR __________________ Worlds Fastest Automatic Modular - 6.48@220 Worlds Fastest GT 500 - 6.99@205 , Worlds Fastest 5 Speed Mustang 8.99@154 www.modularmustangracing.com

January 31st, 2012, 01:30 PM	#4
NickPohlAandP I like boobs!!! 2000 GT convertible dunno Join Date: May 2011 Location: Brooklet, GA Posts: 2,827 iTrader: 2 reviews	Scroll through here and look at the intake and ehaust centerlines on the different types of cams (NA, Blower, Turbo, Nitrous) and you will see what I'm talking about. ModularHeadShop Bullet Cams NA specific cams __________________ Last time you voted to prove you aren't racist. This time prove you're not an IDIOT!!! My Garage--->http://www.moddedmustangs.com/forums...-member-46919/

January 31st, 2012, 01:59 PM	#5
aarongt2000 Regular 2000 mustang gt 13.7 @102 Join Date: Nov 2011 Location: wareham ma Posts: 235 iTrader: 0 reviews	thanks guys ill be looking into this quite a bit. __________________

February 2nd, 2012, 11:53 PM	#6
aarongt2000 Regular 2000 mustang gt 13.7 @102 Join Date: Nov 2011 Location: wareham ma Posts: 235 iTrader: 0 reviews	lookin around for ideas with piping routes. and i came across a few setups with no intercoolers. It is a much more attractive route for me as i want to try and make my own setup. so with 10 psi MAX. Is that okay? DEZ racing is very close by so if it is a tuning issue im confident with his ability. i dont want to push it over 400hp. __________________

February 3rd, 2012, 12:33 AM	#7
aarongt2000 Regular 2000 mustang gt 13.7 @102 Join Date: Nov 2011 Location: wareham ma Posts: 235 iTrader: 0 reviews	anyone? would this be comparable to a non intercooled vortech? __________________

February 3rd, 2012, 01:53 AM	#11
dhicks7806 Regular 2003 Mustang GT Join Date: Dec 2011 Location: Palmerton PA Posts: 252 iTrader: 0 reviews	It really would not be worth the cost savings to run a non intercooled setup...you can pick up a decent front mount relatively cheap and fab your own piping. If you are going to go through all the work to fab the headers and such, you might as well toss a front mount on it. My .02 Sent from my Autoguide iPhone app __________________ '03 GT w/BBK CAI, MAC Pro chamber, Borla Stingers, MGW Orange, SCT X3, and some make it sexy mods '89 GT 5.0 w/full bolt ons-SOLD '04 STi w/ A'pexi N1 catback and accessport-SOLD '00 Audi A6 2.7t stock - DD/Wifey's whip

February 3rd, 2012, 02:19 AM	#12
BigEag205 Underground 2001 SVT Cobra Join Date: Sep 2007 Location: West Virginia Posts: 86 iTrader: 0 reviews	An intercooler is a must for a turbo set-up. The heat would kill your build without one.

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