Head work done, 216 to 318 CFM!!
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Re: Head work done, 216 to 318 CFM!!
Here are the flow numbers:
Stock:
.100" I:88.7 E:65.7
.200" I:167.5 E:118.6
.300" I:218.2 E:159.4
.400" I:217.8 E:177.6
.500" I:224.8 E:184.3
Modified:
.100" I:101.1 E:71.6
.200" I:195.3 E:117.8
.300" I:256.9 E:164.0
.400" I:296.0 E:192.3
.500" I:318.9 E:199.1
Gains:
.100" I:12.4 E:5.9
.200" I:27.8 E:-.8
.300" I:38.7 E:4.6
.400" I:78.2 E:14.7
.500" I:94.1 E:14.8
We'll have some dyno numbers on a N/A car and in a few months we'll have some flow and dyno numbers on our 3.7L with these heads but larger valves. No SRT guys have stepped up yet....
Stock:
.100" I:88.7 E:65.7
.200" I:167.5 E:118.6
.300" I:218.2 E:159.4
.400" I:217.8 E:177.6
.500" I:224.8 E:184.3
Modified:
.100" I:101.1 E:71.6
.200" I:195.3 E:117.8
.300" I:256.9 E:164.0
.400" I:296.0 E:192.3
.500" I:318.9 E:199.1
Gains:
.100" I:12.4 E:5.9
.200" I:27.8 E:-.8
.300" I:38.7 E:4.6
.400" I:78.2 E:14.7
.500" I:94.1 E:14.8
We'll have some dyno numbers on a N/A car and in a few months we'll have some flow and dyno numbers on our 3.7L with these heads but larger valves. No SRT guys have stepped up yet....
Re: Head work done, 216 to 318 CFM!!
Good stuff, someone needs to step up and send out some SRT heads. I wouldn't mind doing it..........but I'm afraid of the tuning needed and I have a InMotion tune(and don't want to buy another).
Did you guys just gasket match the intake runners? If not(and you went bigger) what did you do about the gaskets?
Did you guys just gasket match the intake runners? If not(and you went bigger) what did you do about the gaskets?
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Re: Head work done, 216 to 318 CFM!!
Originally Posted by Moparrbust
Good stuff, someone needs to step up and send out some SRT heads. I wouldn't mind doing it..........but I'm afraid of the tuning needed and I have a InMotion tune(and don't want to buy another).
Did you guys just gasket match the intake runners? If not(and you went bigger) what did you do about the gaskets?
Did you guys just gasket match the intake runners? If not(and you went bigger) what did you do about the gaskets?
For the NA the intake port has not been fully enlarged for gasket matching, but it is port matched to our ported intake. Going larger has resulted in reduced velocity and loss of power on the 3.2L NA.
Re: Head work done, 216 to 318 CFM!!
Originally Posted by TVT_DESIGN
The heads are identical so the SRT will flow as much as the NA head. Nothing different except for valve springs. The heads we did were for a NA application and thus we bumped the CR a tad and only increased flow to what was needed. On the SRT we would further improve intake flow and drastically enlarge the exhaust side to balance out the pumping.
For the NA the intake port has not been fully enlarged for gasket matching, but it is port matched to our ported intake. Going larger has resulted in reduced velocity and loss of power on the 3.2L NA.
For the NA the intake port has not been fully enlarged for gasket matching, but it is port matched to our ported intake. Going larger has resulted in reduced velocity and loss of power on the 3.2L NA.
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Re: Head work done, 216 to 318 CFM!!
Originally Posted by ProjectMayhem
I know its a 3valve motor so i gues its 2 intake one exhaust? Any sort of price estimate on Blown 32 heads with larger exhaust valves? Are you sending these out or done in shop?
A larger exhaust valve may not be necessary at this point. Actually I know it isn't as we have a lot of meat left on the exhaust side to play around with.
Re: Head work done, 216 to 318 CFM!!
Humm? Your not the first to port heads. If you only had 216 cfm to start you must have had a bad set of heads. Is it possible that some one just made a mistake with a few numbers. Any way 318 cfm is impressive if you realy started with only 216 and went to 318. However if you started with 270 ish cfm and went to 318 cfm for $1500.00 it's not impressive at all about $32/cfm.
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Re: Head work done, 216 to 318 CFM!!
Originally Posted by ammoman
Humm? Your not the first to port heads. If you only had 216 cfm to start you must have had a bad set of heads. Is it possible that some one just made a mistake with a few numbers. Any way 318 cfm is impressive if you realy started with only 216 and went to 318. However if you started with 270 ish cfm and went to 318 cfm for $1500.00 it's not impressive at all about $32/cfm.
Re: Head work done, 216 to 318 CFM!!
Originally Posted by TVT_DESIGN
What's the going rate machine shops charge for cfm gains these days? So if we maxed out the flow and ignored the velocity and say had a flow of 400cfm (hypothetical) then we can charge more? Even though we know it will provide diminished performance because of inefficeincy? You are one sly business man...
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Re: Head work done, 216 to 318 CFM!!
Originally Posted by ///SilverSaphRT6
Nothing on this damn car is under $1000......jeezus...I could get a brand new set of aluminum heads ported and polished for under $1500. Aftermarket parts for this car= slap in the face!!
Re: Head work done, 216 to 318 CFM!!
Originally Posted by ///SilverSaphRT6
Nothing on this damn car is under $1000......jeezus...I could get a brand new set of aluminum heads ported and polished for under $1500. Aftermarket parts for this car= slap in the face!!
That's why they make Camaros and Mustangs my friend.
Re: Head work done, 216 to 318 CFM!!
Originally Posted by Moparrbust
That's why they make Camaros and Mustangs my friend.
I love my SRT6 and wouldnt give it up...but jeez why does everything cost over a grand and still nothing out here has bumped us over 400+hp yet?? $1000 for 5-10hp.....just farts is all I smell....sorry for my Rant!?!?! Everyone has them...just my turn this morn I guess.
Re: Head work done, 216 to 318 CFM!!
Originally Posted by ///SilverSaphRT6
Yeah I know I have one of those too.
I love my SRT6 and wouldnt give it up...but jeez why does everything cost over a grand and still nothing out here has bumped us over 400+hp yet?? $1000 for 5-10hp.....just farts is all I smell....sorry for my Rant!?!?! Everyone has them...just my turn this morn I guess.
I love my SRT6 and wouldnt give it up...but jeez why does everything cost over a grand and still nothing out here has bumped us over 400+hp yet?? $1000 for 5-10hp.....just farts is all I smell....sorry for my Rant!?!?! Everyone has them...just my turn this morn I guess.