[Z06] Lets talk heads "shall we"?
12-23-2018, 09:55 AM
#1
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Lets talk heads "shall we"?
So, current set up in my 08Z
AHP (4) heads, VR Kaotic cam (love it), ported MSD, super damper, headers, Akro,NW102,Hallteck,Vetteaire,.. making 592/550 to the tires. Taking my car in next weekend for some 85lb injectors to be added along w a re tune.. Should be able to squeeze a few more ponies out of that. My injectors are @ 85,90%..
Considering going with an aftermarket head BUT want to insure I get some bang for my buck. AI ,Mamo, All Pro, TSP, Brodix, all come to mind.... I'd like to hear from those who have went from the LS7 castings to the aftermarket heads... Not so much "opinions" based off of hearsay
Is there HP on the table? Can I reasonably expect 30-50hp gain from said heads? I don[t want to change anything else up.. Other than perhaps lifters, valve springs etc.. Please, enlighten me. PRICE is also a consideration. BANG 4 BUCK.
Thanks in advance....
AHP (4) heads, VR Kaotic cam (love it), ported MSD, super damper, headers, Akro,NW102,Hallteck,Vetteaire,.. making 592/550 to the tires. Taking my car in next weekend for some 85lb injectors to be added along w a re tune.. Should be able to squeeze a few more ponies out of that. My injectors are @ 85,90%..
Considering going with an aftermarket head BUT want to insure I get some bang for my buck. AI ,Mamo, All Pro, TSP, Brodix, all come to mind.... I'd like to hear from those who have went from the LS7 castings to the aftermarket heads... Not so much "opinions" based off of hearsay
Is there HP on the table? Can I reasonably expect 30-50hp gain from said heads? I don[t want to change anything else up.. Other than perhaps lifters, valve springs etc.. Please, enlighten me. PRICE is also a consideration. BANG 4 BUCK.
Thanks in advance....
12-23-2018, 10:48 AM
#2
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12-23-2018, 12:08 PM
#3
Le Mans Master
Is this a flex fuel set up?
12-23-2018, 04:14 PM
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Not right now NO.... Looking at MAST too... Nothing wrong with mine ( to be clear) Just spit balling...
12-23-2018, 04:46 PM
#6
Le Mans Master
I'm looking at the Brodix BR7 2.200" intake valve version from LME. Talked to TSP earlier this week. They have an E85 version of the PRC 285cc head with a slightly different chamber. I was intrigued, to say the least.
I definitely feel you have some power left on the table, even by changing to another stock casting worked by, either; AI, LME, or WCCH. My LPE worked heads were crap and I picked up 40whp going to the LME program and a smaller camshaft. Take that for whatever it's worth.
I definitely feel you have some power left on the table, even by changing to another stock casting worked by, either; AI, LME, or WCCH. My LPE worked heads were crap and I picked up 40whp going to the LME program and a smaller camshaft. Take that for whatever it's worth.
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dmartens (12-30-2018)
12-23-2018, 05:30 PM
#8
Sub’d
I too am curious. My current setup is stock castings sent in to TSP for the PRC 265cc package. Milled .030, and K501 cam. One day in the future curious which way to go as well. Currently at 575/506 whp/wtq
I too am curious. My current setup is stock castings sent in to TSP for the PRC 265cc package. Milled .030, and K501 cam. One day in the future curious which way to go as well. Currently at 575/506 whp/wtq
12-23-2018, 06:55 PM
#9
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Mine are in fact ported and milled .30,,,,,, Love the VR Kaotic cam... Had this joker today hit me up in Mexico.. New Charger Hellcat... Hit it at 70 to 140... Should rename it to Hell Kitten.. He didn't fare very well... His supercharger was screaming though Gotta love these cars... I know, I know... running a 4 door sedan... (roll eyes). He started it... What was I supposed to do?
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Pounder (12-27-2018)
12-23-2018, 08:00 PM
#10
Melting Slicks
I am looking at Brodix and also I see Dart has entered the arena. Frankenstein is coming out with some LS7 specific head next month not sure how big the chambers are so might not be a fit (they have info on there website).
12-23-2018, 11:55 PM
#11
Doesn’t need heads. Just E85 and then Nitrous. I know someone that might make say the same power on 93 and then adds 25whp on E. Then adds a dedicated wet 100 Nitrous shot for 730+. Flex fuel will cost you much less and net you more. Nitrous well, you know the deal there...
12-24-2018, 12:21 AM
#12
Indeed nitrous is tempting. Didn’t you spray your old C5Z Matt ? My vote would be for MMS heads
Dear lord JP.. it’s been quite some time since I’ve seen you post somwhere! Hope all is well.
-Brenton
Dear lord JP.. it’s been quite some time since I’ve seen you post somwhere! Hope all is well.
-Brenton
12-24-2018, 12:55 AM
#13
Lol, all is well, been awhile since I’ve had time to post!
My vote would be spend the $$ on setting up flex fuel first, as it kills 2 birds with 1 stone: being a 10yr old car it’s going to need a new fuel pump at some point, might as well replace it with a flex fuel capable setup, and while you’re adding injectors, it’ll make perfect sense.
My vote would be spend the $$ on setting up flex fuel first, as it kills 2 birds with 1 stone: being a 10yr old car it’s going to need a new fuel pump at some point, might as well replace it with a flex fuel capable setup, and while you’re adding injectors, it’ll make perfect sense.
Last edited by 427ZM; 12-24-2018 at 12:57 AM.
12-24-2018, 09:01 AM
#14
Team Owner
The advantage of aftermarket heads is thicker decks, 6 bolt clamping, and possibly change geometry/port design. Any of the ones that get into changed geometry are going to be pricey, and may require custom pistons, rockers, intakes, etc.
As for power, you probably have plenty left on the table from different port work/etc, but not from an aftermarket casting. Aftermarket heads also add up quickly, so don't get fooled by the base as cast price. My brodix came out to ~$7k once I got them done and loaded up with valves/springs/etc etc.
As for power, you probably have plenty left on the table from different port work/etc, but not from an aftermarket casting. Aftermarket heads also add up quickly, so don't get fooled by the base as cast price. My brodix came out to ~$7k once I got them done and loaded up with valves/springs/etc etc.
12-24-2018, 09:33 AM
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Doesn’t need heads. Just E85 and then Nitrous. I know someone that might make say the same power on 93 and then adds 25whp on E. Then adds a dedicated wet 100 Nitrous shot for 730+. Flex fuel will cost you much less and net you more. Nitrous well, you know the deal there...
Thanks for taking time to chime in... Haven't spoken with you for quite sometime. Hope you, the wife, kids are doing well. I have considered the flex fuel thing, I have also spoke with Luke, Carlos about Nitrous (125 shot). But I keep reading all of these threads about heads and even the fixed guides wearing after time. Mine were worked by AHP approx. 7k miles ago. Although I don't beat on my car on a regular basis, I do from time to time ( like yesterday) rev her up to 7K... She seems to love it and want more... lol.
Yes, Brenton, I ran a 250 shot on my built 414 in my C5Z and loved every second of it. The guy who bought it is still racing it and has converted it to a built A4 w a big stall...
I need to revisit the whole E85 thing. I have heard that w my current cam, heads (milled 30) that it is not conducive and would not really net me much power. Nitrous is always an option but I wanna stay NA...
Frankenstein doesn't have the greatest rep here in Dallas... They are kind of hit/miss... I have a couple of friend running the TSP 265's, 285's but they are not making much more if any more power than I am. I guess I should just be happy with what I have. Who knows. You know me JP.. I have a hard time leaving **** alone. I recently flipped one of my Fbods and have some $ burning a hole in my pocket.
Thanks for the feedback guys! Keep it coming.
12-24-2018, 09:53 AM
#16
Pro
I would avoid TSP, personal experience here. My vote if staying NA would be Ai porting. If you have 93 I wouldn’t bother with E85 unless you go high compression. RPM make 630+ rwhp on 93.
12-24-2018, 09:55 AM
#17
Le Mans Master
Drive them b*tches down to LME and enjoy some new power.
You may not pick up a whole ton of power on e85 but there are more benefits to running that fuel than just power output. It burns cleaner, cooler, less prone to detonation, it smells better, gains not only at peak but through the whole RPM range. Yes, you have to fill up more often but it ends up coming out cheaper (at least in my experience). I was getting about 240mi to a tank on 93 octane when I was bone stock. I get about 120-130mi to a tank on e85 depending on how I drive. E85 in my area is $1.45 and premium 93 is in the $2.40+ range.
You may not pick up a whole ton of power on e85 but there are more benefits to running that fuel than just power output. It burns cleaner, cooler, less prone to detonation, it smells better, gains not only at peak but through the whole RPM range. Yes, you have to fill up more often but it ends up coming out cheaper (at least in my experience). I was getting about 240mi to a tank on 93 octane when I was bone stock. I get about 120-130mi to a tank on e85 depending on how I drive. E85 in my area is $1.45 and premium 93 is in the $2.40+ range.
12-24-2018, 10:24 AM
#19
Pro
Drive them b*tches down to LME and enjoy some new power.
You may not pick up a whole ton of power on e85 but there are more benefits to running that fuel than just power output. It burns cleaner, cooler, less prone to detonation, it smells better, gains not only at peak but through the whole RPM range. Yes, you have to fill up more often but it ends up coming out cheaper (at least in my experience). I was getting about 240mi to a tank on 93 octane when I was bone stock. I get about 120-130mi to a tank on e85 depending on how I drive. E85 in my area is $1.45 and premium 93 is in the $2.40+ range.
You may not pick up a whole ton of power on e85 but there are more benefits to running that fuel than just power output. It burns cleaner, cooler, less prone to detonation, it smells better, gains not only at peak but through the whole RPM range. Yes, you have to fill up more often but it ends up coming out cheaper (at least in my experience). I was getting about 240mi to a tank on 93 octane when I was bone stock. I get about 120-130mi to a tank on e85 depending on how I drive. E85 in my area is $1.45 and premium 93 is in the $2.40+ range.
12-24-2018, 11:13 AM
#20
Currently I’m running stickers ported by TSP on their 265 program, I can tell you if you went that direction, you’d be spending money for no gains... not knocking my heads at all, they’re great! They run well, and have for over 18k miles... I’m just saying the Kaotic and my cam are very similar and our power is spot on. The small gains you’d see from a slightly better set of heads isn’t worth the price IMO, Brodix or Mast heads are both great pieces, but at best I don’t think you’d see more than 10rwhp out of them. Matt you know where I stand on Frankie’s heads...
As I know Carlos is a big proponent of running 13:1 on E cars, where you will gain 50, running the CR you have now, with a flex setup will still net you 25rwhp, and it’ll run you much less than an entire set of new heads.
As I know Carlos is a big proponent of running 13:1 on E cars, where you will gain 50, running the CR you have now, with a flex setup will still net you 25rwhp, and it’ll run you much less than an entire set of new heads.
Last edited by 427ZM; 12-24-2018 at 12:12 PM.