expected gains?
08-03-2010, 03:23 PM
#1
On The Tree
Thread Starter
iTrader: (1)
Join Date: May 2009
Location: tucson
Posts: 154
Likes: 0
Received 0 Likes
on
0 Posts
expected gains? So i finally got all my mods shipped and in the garage waiting for install and tune. My tuner won't be in till november so I'm stuck waiting and in the meantime thinking of what else I should purchase for the install/tune. What else do you guys think I might need and what gains should i expect? Oh it's all on a 04 ls6 platinum siver with 32k miles!!!
List of mods in the garage
1. intake
2. pacesetter headers
3. kooks hf cats
4. magnaflox exhaust
5. swap resonator w/ straight pipes
6. cam 242/248
7. PAC dual valve springs, retainers, pushrods, etc
8. fast92 intake manifold/fast 92 throttle body
9. hp tuners
10. gforce axles ($5xx option)
11. ???? (you input here)
List of mods in the garage
1. intake
2. pacesetter headers
3. kooks hf cats
4. magnaflox exhaust
5. swap resonator w/ straight pipes
6. cam 242/248
7. PAC dual valve springs, retainers, pushrods, etc
8. fast92 intake manifold/fast 92 throttle body
9. hp tuners
10. gforce axles ($5xx option)
11. ???? (you input here)
Last edited by z28dogg; 08-03-2010 at 03:25 PM. Reason: more detail
08-03-2010, 04:09 PM
#2
Id say in the 430 range with those mods. If you dont have motor mounts id do those now while the headers are out. Also id have the FAST ported before you put it on the car, thatll pick you up some extra hp for the little bit of money. I did a melling high volume oil pump when i did my cam and its just cheap insurance that doesnt take anything extra to install. Mybe if your looking to squeeze out as much as possible an U/D pulley since the stocker is off anyways.
I dont know how you are on money but if its apart and the manifold is off id look into how much itd cost to port the stock heads/valve job. If you do all this you shouldnt have a problem hitting over 450rwhp on stock heads(ported of course.)
I dont know how you are on money but if its apart and the manifold is off id look into how much itd cost to port the stock heads/valve job. If you do all this you shouldnt have a problem hitting over 450rwhp on stock heads(ported of course.)
08-03-2010, 04:14 PM
#4
On The Tree
Thread Starter
iTrader: (1)
Join Date: May 2009
Location: tucson
Posts: 154
Likes: 0
Received 0 Likes
on
0 Posts
Humm I wonder how much it would cost to port the heads/valves? I really don't know much about that, what all else is involved in porting? will it require more parts to purchase or just the labor of porting? wouldnt I have to pull the heads off or the engine out?
08-03-2010, 04:22 PM
#5
TECH Regular
iTrader: (14)
Join Date: Jan 2009
Location: Cypress TX
Posts: 422
Likes: 0
Received 0 Likes
on
0 Posts
You can get assembled PRC heads with dual valve springs for $1600.
http://www.texas-speed.com/shop/item...d=134&catid=40
I have em on my V and for the price you can't complain.
Then I sold my stock heads in a week for $450.
http://www.texas-speed.com/shop/item...d=134&catid=40
I have em on my V and for the price you can't complain.
Then I sold my stock heads in a week for $450.
08-03-2010, 04:25 PM
#6
On The Tree
Thread Starter
iTrader: (1)
Join Date: May 2009
Location: tucson
Posts: 154
Likes: 0
Received 0 Likes
on
0 Posts
no way 1600 for heads can't complain at for that!!! hmm I know I can swing that by November! is that a direct bolt on app? if i do this then what will i be looking at and what would be the gain over porting stock heads considering price?
08-03-2010, 05:15 PM
#7
On The Tree
Thread Starter
iTrader: (1)
Join Date: May 2009
Location: tucson
Posts: 154
Likes: 0
Received 0 Likes
on
0 Posts
Me thinks i might just spring for the PRC heads!! The intake mani was ported already. I was adding how much I'm gonna end up paying for all this and started thinking I probably should have just gone the SC route. Oh well nothing a little juice down the road can't fix!!lol So what will I reach with these heads added to the list?
Trending Topics
08-03-2010, 06:10 PM
#8
damm thats a huge cam!
g/luck and keep us updated
10.) Id go with the full race axle set
11.) A updated gen 4 diff (seriously)
g/luck and keep us updated
10.) Id go with the full race axle set
11.) A updated gen 4 diff (seriously)
Last edited by maxspeed05V; 08-03-2010 at 06:40 PM.
08-03-2010, 09:31 PM
#10
Im not positive but arent PRCs LS6 heads just 243 castings workied over by TSP? MEaning you can just get the stock heads ported and worked out for less? Plus you can mill the stock heads down a tad to bump the compression but youd have to make sure PTV clearance is enough.
08-03-2010, 10:07 PM
#11
Don't skimp on the headers with an aggressive cam. I understand budget, but it's far better to spend a little more now, rather than a lot more later when you're not happy with the results 
Pacesetters to me remind me of the old cheaper sbc headers, like blackjack and such...they work, but when compared to a pair of hooker super comps, sort of thing...
Will you need any fuel modifications (pump, injectors, adj. regulator, etc. Better budget in new upgraded mounts all over, too...
Pacesetters to me remind me of the old cheaper sbc headers, like blackjack and such...they work, but when compared to a pair of hooker super comps, sort of thing...Will you need any fuel modifications (pump, injectors, adj. regulator, etc. Better budget in new upgraded mounts all over, too...
08-03-2010, 10:14 PM
#12
TECH Regular
iTrader: (14)
Join Date: Jan 2009
Location: Cypress TX
Posts: 422
Likes: 0
Received 0 Likes
on
0 Posts
Im not positive but arent PRCs LS6 heads just 243 castings workied over by TSP? MEaning you can just get the stock heads ported and worked out for less? Plus you can mill the stock heads down a tad to bump the compression but youd have to make sure PTV clearance is enough.
Also, I would not mill the heads with a cam that high in duration, unless you're ok with fly cutting the pistons. Actually, I would check your PTV clearance with stock heads.
08-04-2010, 12:38 AM
#14
Hey, I see you are in Tucson, if you need a hand wrenching on anything let me know, I'd love to help (and get some practice for the day my V gets the same parts...)
I've already done the axle shafts in mine too, it would be much easier to do the second time. (and much much quicker...) I also have a 34mm socket, and a long pry bar to save on the tool expense for now.
I've already done the axle shafts in mine too, it would be much easier to do the second time. (and much much quicker...) I also have a 34mm socket, and a long pry bar to save on the tool expense for now.
08-04-2010, 02:04 AM
#15
On The Tree
Thread Starter
iTrader: (1)
Join Date: May 2009
Location: tucson
Posts: 154
Likes: 0
Received 0 Likes
on
0 Posts
Decided against the heads as my tuner spec'd out my cam and is made for the stock heads plus I'd rather save and get some AFR further down the road. I have also decided that I might as well make #11 the go juice! Now I just gotta look for a proven setup.
08-04-2010, 02:47 AM
#17
what size shot are you looking to run? id contact HSW or nitrous outlet(nitrous outlet if you want a plate kit) because the HSW plate is too thick and youd have to modify the intake.
id suggest one of the budget direct port kits from NX or nitrous outlet if you wanna do 150 shot just because of the clean install and tuneability. PLus its not much more then a plate kit.
Just remember you have to put this power to the ground. What clutch are you running? Might just wanna put the money towards that.
id suggest one of the budget direct port kits from NX or nitrous outlet if you wanna do 150 shot just because of the clean install and tuneability. PLus its not much more then a plate kit.
Just remember you have to put this power to the ground. What clutch are you running? Might just wanna put the money towards that.
08-04-2010, 08:18 AM
#18
Are you attempting to install a cam without pulling the heads? If so, you are a brave man. What are the complete specs on your cam, lift and LSA? Also, your stock clutch will handle that combo for quite some time, and an LS7 clutch and flywheel will easily hold up. I ran a similar setup with the stock clutch for about 6 months without issue and the stock clutch looked fine when removed. I have run an LS7 now for a year and a half with many track days and constant flogging.
With a guess of .58X/.59X, I would say you will be right at 400-410 Hp and 400 Tq to the wheels. Maybe less without ported heads. A set of Patriot heads (stock castings also) are only $1250 fully assembled or $850 bare.
Are you waiting for your tuner for any specific reason, or just that you trust him and only him?
I would also plan to be doing the bottom end after you do these mods and adding NO2. Mine lasted about 50,000 miles with heads/cam before a bearing or two took a crap (2 dozen road course track days and always driven hard). I haven't pulled it apart yet, so I'm not exactly sure what it is yet. I just know it sounds like a spun bearing and I ended up with a few pistons kissing intake valves.
You might want to think about #11 being larger injectors. I was at 92% duty cycle, then retuned it a little fatter (and faster) and was about tweaked out at 98%.
With a guess of .58X/.59X, I would say you will be right at 400-410 Hp and 400 Tq to the wheels. Maybe less without ported heads. A set of Patriot heads (stock castings also) are only $1250 fully assembled or $850 bare.
Are you waiting for your tuner for any specific reason, or just that you trust him and only him?
I would also plan to be doing the bottom end after you do these mods and adding NO2. Mine lasted about 50,000 miles with heads/cam before a bearing or two took a crap (2 dozen road course track days and always driven hard). I haven't pulled it apart yet, so I'm not exactly sure what it is yet. I just know it sounds like a spun bearing and I ended up with a few pistons kissing intake valves.
You might want to think about #11 being larger injectors. I was at 92% duty cycle, then retuned it a little fatter (and faster) and was about tweaked out at 98%.
Last edited by 07CTS-V; 08-04-2010 at 09:40 AM.
08-04-2010, 12:55 PM
#19
On The Tree
Thread Starter
iTrader: (1)
Join Date: May 2009
Location: tucson
Posts: 154
Likes: 0
Received 0 Likes
on
0 Posts
I wanna go with a 100 -150 shot max. I am waiting on my tuner because he is the designer of the cam and is the best qualified to tune it. Also he has a great reputation here in Tucson/phoenix area. Just research AZPS03 cams and you will find plenty of GTO's in the 430's and up with similar setups.