Fitment
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Joined: Oct 2019
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From: Detroit
Fitment
Last edited by Jason Davenport; Dec 9, 2020 at 04:30 PM.
Retired & lovin' it!
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From: Jackson NJ
Burning Brakes
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From: Auburn Al
How dare you suggest he call the MFG. what a horrible thing too tell the guy. you should be banned for life, I know people who have been banned for less! Don't you know your supposed to do the research for him and then suggest alternatives and do some pricing and find reputable shops in his area that would do the work reasonably, How inconsiderate could you be?
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Joined: Oct 2019
Posts: 94
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From: Detroit
Fittment
Didn't ask for your condescending bs *** hat. But I did figure it out. Trying not to spend my money on wrong parts I am a little confused as I am trying to switch to ls3 top end so I can run a HB blower on my ls2. I have done loads of research from ecs, a&a, na and so on and for my goals I think this would suit me best. Now I'm trying to get the right top end kit to make it work. Sorry I am not as knowledgeable as you. Im sure you are a dream to live with.
Le Mans Master
Joined: Dec 2005
Posts: 6,999
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From: Southeast TX
All you need are square port heads and the injectors and fuel rails to make it all work. You can use your stock cam or upgrade to a cam more appropriate for use with a TVS2300. Nothing in that "package" other than the heads should be of interest to you. Really, ported heads are overkill unless you're trying to max out your LS2. Even then, stock LS3 heads won't leave much on the table.
Burning Brakes
Joined: Aug 2018
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From: ARKANSAS
How dare you suggest he call the MFG. what a horrible thing too tell the guy. you should be banned for life, I know people who have been banned for less! Don't you know your supposed to do the research for him and then suggest alternatives and do some pricing and find reputable shops in his area that would do the work reasonably, How inconsiderate could you be?
Race Director
Joined: Mar 2011
Posts: 13,262
Likes: 3,151
From: SW Florida
2021 C6 of the Year Finalist - Modified
'old motorhead' is right ....
That package you posted a link to also contains an LS3 rectangular port intake manifold ... You don't need any intake manifold since the Heartbeat SC replaces the intake manifold.
The package also contains a camshaft, but if you really want to change out your stock cam for something bigger, you need to look for a grind that works best with a positive displacement SC (the Heartbeat is a positive displacement SC). That cam in the package is designed to work best for engines that are not supercharged.
Bottom line ... All you need is a set of rectangular port LS3 heads to mate-up correctly with the Heartbeat SC ... And if you want to change cams, pick a cam from someone like Cam Motion that is designed for folks using a positive displacement SC.
And to save you even more money, get a set of stock LS3 heads instead of expensive aftermarket LS3 style heads ... At the power level you will be running, aftermarket heads is not a great 'bang for the buck'.
Fuel rails and injectors will be supplied with the Heartbeat kit,
________________________________________ __
So .. To recap .. All you need is a set of stock LS3 heads and the Heartbeat SC kit designed for the LS3
Good luck ...
That package you posted a link to also contains an LS3 rectangular port intake manifold ... You don't need any intake manifold since the Heartbeat SC replaces the intake manifold.
The package also contains a camshaft, but if you really want to change out your stock cam for something bigger, you need to look for a grind that works best with a positive displacement SC (the Heartbeat is a positive displacement SC). That cam in the package is designed to work best for engines that are not supercharged.
Bottom line ... All you need is a set of rectangular port LS3 heads to mate-up correctly with the Heartbeat SC ... And if you want to change cams, pick a cam from someone like Cam Motion that is designed for folks using a positive displacement SC.
And to save you even more money, get a set of stock LS3 heads instead of expensive aftermarket LS3 style heads ... At the power level you will be running, aftermarket heads is not a great 'bang for the buck'.
Fuel rails and injectors will be supplied with the Heartbeat kit,
________________________________________ __
So .. To recap .. All you need is a set of stock LS3 heads and the Heartbeat SC kit designed for the LS3
Good luck ...
Last edited by Turbo6TA; Dec 13, 2020 at 06:28 AM.
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Race Director
Joined: Mar 2011
Posts: 13,262
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From: SW Florida
2021 C6 of the Year Finalist - Modified
One more think you will need besides the Heartbeat kit and the LS3 heads ...
Don't forget to get a good harmonic balancer such as the PowerBond 'Race Performance' Harmonic Balancer (P/N: PB1117SS) to replace the failure prone OEM balancer.
This balancer will need to be pinned because of the SC you will be installing ... The pinning kit is supplied with the Heartbeat kit, so you don't need to buy the pinning kit separately.
Don't forget to get a good harmonic balancer such as the PowerBond 'Race Performance' Harmonic Balancer (P/N: PB1117SS) to replace the failure prone OEM balancer.
This balancer will need to be pinned because of the SC you will be installing ... The pinning kit is supplied with the Heartbeat kit, so you don't need to buy the pinning kit separately.
Race Director
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From: SW Florida
2021 C6 of the Year Finalist - Modified
And before I forget ... The heartbeat kit can be purchased without the hand-held tuner and it's generic tune for a $200 discount off the SC price.
A dyno tune is much better than using the tune that comes with the SC.
So, if you plan on having the car dyno tuned, save an extra $200 by purchasing the SC kit without the supplied tune.
A dyno tune is much better than using the tune that comes with the SC.
So, if you plan on having the car dyno tuned, save an extra $200 by purchasing the SC kit without the supplied tune.
Thread Starter
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Joined: Oct 2019
Posts: 94
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From: Detroit
Fitment
Thank you for the info it is much appreciated as I definitely do not want to waste money. I have been researching all different routes for awhile now. Since I will be mostly street driving and do not plan to need more than 600 to rwhp I think HB or a NA set up is my best bet. This is set up I was quoted for a ls3 heads cam set up to compliment the HB.
https://gwatneyperformance.com/cart-share/knNLJ/ref/3/
Please let me know what you think. I hope to have approximately 600 rwhp. The other route I am considering is either a cartek NA set up or a Mamo ls3 NA set up. They are all kind of in the same ball park. cartek least expensive as they would work my existing heads but I know their set ups work. HB set up probably cost the most but i dont mind if the end result is worth it.Feel free as to which route would be best for a weekend cruiser, I dont mind it being aggressive but don't want a strictly drag car either. I will definitely buy a balancer too. Old motor head would I need a boost a pump or fuel system upgrade for hb and what pulley should I run if I go that route.
https://gwatneyperformance.com/cart-share/knNLJ/ref/3/
Please let me know what you think. I hope to have approximately 600 rwhp. The other route I am considering is either a cartek NA set up or a Mamo ls3 NA set up. They are all kind of in the same ball park. cartek least expensive as they would work my existing heads but I know their set ups work. HB set up probably cost the most but i dont mind if the end result is worth it.Feel free as to which route would be best for a weekend cruiser, I dont mind it being aggressive but don't want a strictly drag car either. I will definitely buy a balancer too. Old motor head would I need a boost a pump or fuel system upgrade for hb and what pulley should I run if I go that route.
Race Director
Joined: Mar 2011
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From: SW Florida
2021 C6 of the Year Finalist - Modified
If you run the 96mm pulley that comes with the Heartbeat kit, or the next size smaller (93mm pulley) you won't need a Boost a Pump. As far as injectors, the LS9 injectors that come with the kit will be fine as long as you don't go smaller than the 93mm drive pulley.
Le Mans Master
Joined: Dec 2005
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From: Southeast TX
You won't hit 600 rwhp on a naturally aspirated rig without more cubic inches and some really expensive cylinder heads. If you do go this route, you'll have an ill mannered beast on your hands that will impress the car show crowd. Won't be much fun to drive once the new wears off. 500 is doable while still having decent manners and fuel eco. 600 not so much.
To hit 600 with a Heartbeat blower on top, you'll need an 87mm blower pulley and a mild blower cam along with long tube headers and a free flowing exhaust. That's assuming you have an M6 transmission. You'll need to go down another pulley size to hit 600 through an A6 transmission. You'll need a boost-a-pump and a bigger set of injectors too. If you did a flex fuel conversion, you could probably hit your goals with the stock cam. I've done 4 TVS2300 builds. If I happen to lose my mind again and put another one together, it would employ flex fuel.
To hit 600 with a Heartbeat blower on top, you'll need an 87mm blower pulley and a mild blower cam along with long tube headers and a free flowing exhaust. That's assuming you have an M6 transmission. You'll need to go down another pulley size to hit 600 through an A6 transmission. You'll need a boost-a-pump and a bigger set of injectors too. If you did a flex fuel conversion, you could probably hit your goals with the stock cam. I've done 4 TVS2300 builds. If I happen to lose my mind again and put another one together, it would employ flex fuel.
Race Director
Joined: Mar 2011
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From: SW Florida
2021 C6 of the Year Finalist - Modified
Another example ... With a Heartbeat SC on my LS3 (2011 GS) with the automatic transmission:
It made 535 RWHP @ 6,300 revs using a 93MM drive pulley and a set of 1 3/4" headers with cats (everything else stock to include stock heads and cam)
535 RWHP = 623 Net crank HP figuring a parasitic HP loss of 14% through the A6 transmission drivetrain
At that HP level, it did not need a BAP or bigger injectors than the LS9 injectors that are supplied with the Magnuson 'Heartbeat' kit.
.
It made 535 RWHP @ 6,300 revs using a 93MM drive pulley and a set of 1 3/4" headers with cats (everything else stock to include stock heads and cam)
535 RWHP = 623 Net crank HP figuring a parasitic HP loss of 14% through the A6 transmission drivetrain
At that HP level, it did not need a BAP or bigger injectors than the LS9 injectors that are supplied with the Magnuson 'Heartbeat' kit.
.