iced98lx

Looking to get some heartbeat results together into a thread. Would like to see:

• Year
• Engine Size
• Modifications to Engine outside of Blower
• Pulley Size
• Fuel type targeted
• HP/TQ (Dyno Graph if you have it)
• Impressions / Are you happy with your choice

This thread isn't asking for you to chime in about how your centri is better, please keep the thread on track.

Unreal's Customer

• 2012
• 434ci
• Trickflow heads, big cam, headers, meth, upgraded custom HE, ice tank, upgraded custom pump for HE, upgraded custom raditor, meth, etc. No mod left undone.
• Pullied for a bit over max RPM.
• Pump+lots of meth (91? 93?)
• 750rwhp/720rwtq
• Customer is now dropping 30k+ on custom twin turbo compound setup because got tired of relying on nitrous to make power with the heartbeat. Just doesn't put out enough alone and is maxed out. A few stages of n2o helped but filling bottles non-stop got annoying.

THE_BLADE

• Year?
• LS3 Stock bore
• 17/8 AR stainless 3in X pipe, Ported heads, cam, upgraded fuel system
• One size smaller pulley than stock
• Pump gas (?)
• 649hp / 549ft/lbs https://www.corvetteforum.com/forums...vette-dyno.jpg
• Happy - not looking to be fastest car on the street/strip

Streetk14

• 2013
• LS3 (Dry Sump)
• ARH 1 7/8 headers (with cats)
• 90mm Pulley
• 91 Octane CA special
• 548.3 rwhp/ 541 rwtq (6-7psi)
• Nice change of pace from owning a C6 with an A&A kit. Haven't pushed it very hard yet, but for a stock motor on low boost it's plenty capable. IATs have been very good in my opinion. Blower and related parts have been as reliable as can be.

08C6

• 2008
• LS3 A6
• LG Headers
• 81mm Pulley
• Kenne Bell BaP 91 Octane tune
• 565 RWP / 535RWTP @ 10psi
• Car is a blast to drive ... can drive it tame or really let go when needed !!!

scottg

• 2008
• LS3
• Long tube headers & X /ATI Crank Pulley
• 84mm Pulley
• KB BaP 92 octane
• 559rwhp / 528rwtq @ 9lbs
• Would do it again in a Heartbeat. "pun intended"

old_motorhead

• 2013
• Stock cube LS3 with dry sump
• Stock long block, Pfadt 1.875 Headers sans cats, 224/234 116+2 custom cam with upgraded pushrods and dual springs. A&A fuel system
• 81mm = about 9.5psi
• Texas 93 octane with meth
• I have it, but not computer savvy enough to post it....647/605 with lots of belt slip
• Really pleased with it. IAT's are way better than the jackshaft Maggie TVS on my previous Vette. Doesn't go up near as high under boost and recovers much faster. I have the belt slip solved, but haven't had it on a dyno since fixing it. Currently looking into a bigger throttle body for it.

monsta01

• 2012 A6 GS
• LS3 Cam
• LG catless headers
• 81mm pulley / IW crank pulley
• Pump Gas (93 Octane) / BAP / FIC1000 injectors
• 661whp/594wtq Dyno
• I'm sure I lost boost with the headers so it negated any gains I would have seen over not having headers.

Ancient Warrior

• 2009 z51 m6
• 376 ls3
• kooks 1 7/8" / 220-240 Pat G cam / Patriot gold springs / Comp pushrods
• 9.5lbs of boost / 96mm pulley / ATI 7.96 balancer
• 93 octane pump
• 606whp / 512wtq Dyno
• installed and tuned by Backstreet Performance

Chiselchst

• 2012 GS M6
• 6.2L LS3 Stock internals
• ZR1 Full exhaust w/3" Corsa sport axle backs
• 90mm
• 91 "CNA special"
• 537/481 Dyno
• Very happy, drives like stock until in to boost. IAT temps are extremely good. Blower is QUITE.

Woodstoc

• 2012
• 6.2L / Stock LS3
• Headers, BAP
• "one size smaller than stock"
• Pump Gas
• 548/528 Dyno
• Very happy with the instant torque. The car is a monster, looks stock, and sounds stock until I open the cut outs much to the surprise of a few mustangs and the like.

realcanuk

THE BLADE

Here ya go, How's that for a torque curve!!!

Unreal

Looking to get some heartbeat results together into a thread. Would like to see:
Year
2012
Engine Size
434ci
Modifications to Engine outside of Blower
Everything. Trickflow heads, big cam, headers, meth, upgraded custom HE, ice tank, upgraded custom pump for HE, upgraded custom raditor, meth, etc. No mod left undone.
Pulley Size
I'll try to get exact numbers later, but pullied for a bit over max RPM.
Fuel type targeted
Pump+lots of meth
HP/TQ (Dyno Graph if you have it)
750rwhp/720rwtq
Impressions / Are you happy with your choice
Customer is now dropping 30k+ on custom twin turbo compound setup because got tired of relying on nitrous to make power with the heartbeat. Just doesn't put out enough alone and is maxed out. A few stages of n2o helped but filling bottles non-stop got annoying.

erick_e

Holy Crap...

I need more info on that set up....

realcanuk

Details on build ? Bit of a strange graph there. I would think torque would be more.

THE BLADE

LS3 Stock bore
Heartbeat one size smaller pulley than stock
17/8 AR stainless 3in x
Ported heads
cam
upgraded fuel system

I like the curve of this pkg just fine for me, not interested in KING of the hill status.

realcanuk

Sound like a great package. Wasn't knocking it. My comment wasn't about not having enough power, just that with these PD blowers the torque is usually closer to the HP number. Was just wondering.

Must be a blast to drive. Enjoy.

THE BLADE

No worries, ALL ABOUT HAVING FUN!!

iced98lx

Thanks you two for the results so far!

erick_e

What cam?

Streetk14

Damn, that's flat. A little odd, though, like Realcanuk mentioned. Did you request a super flat torque curve when the build was spec'd and tuned? It almost looks to me like it as tuned that way intentionally.

Streetk14

I'll add mine to the list. At least as it sits right now:


•Year: 2013
•Engine Size: stock dry-sump LS3
•Modifications to Engine outside of Blower: ARH 1 7/8" headers w/ cats
•Pulley Size: 90mm
•Fuel type targeted: 91 octane CA/ACN fuel
•HP/TQ (Dyno Graph if you have it): 548.3 rwhp/ 541.8 rwtq @ 6-7 psi
•Impressions / Are you happy with your choice: Nice change of pace from owning a C6 with an A&A kit. Haven't pushed it very hard yet, but for a stock motor on low boost it's plenty capable. IATs have been very good in my opinion. Blower and related parts have been as reliable as can be. needs more boost, but I'll fix that soon.

08C6

Here's mine to share !!!
2008 Coupe - LS3 - Automatic
Motor pretty much stock
Magnuson Heartbeat - 81 MM pulley
Kenne Bell Boost a Pump
91 Octane tuned ( Ultra 94 used )
LG Motorsports Header Package - Borla Type II S Exhaust
@ 10 PSI 565 RWHP - 535 RWTQ
Car is a blast to drive ... can drive it tame or really let go when needed !!!

scottg

2008 LS3

stock internals

ATI Super Damper

newer cooler spark plugs

084mm pulley one size from the smallest Magnuson sells ( I Think)

3" pipes to stock mufflers npp

ARH 1 7/8 headers

Kenny Bell boost a pump

160 thermostat

Temps hang at 195 to 205

92 octane exxon

9lbs boost

559whp 528rwtq

posted dyno sheet in july 2014. Don"t know how to move it here

Would do it again in a Heartbeat. "pun intended"

Manual 6

iced98lx

thanks guys, original post updated. I like having as many results as we can in one place for those doing research on a kit.

old motorhead

Not finished yet, but here it is....so far.

[*]Year: 2013
[*]Engine: Stock cube LS3 with dry sump
[*]Modifications to Engine outside of Blower: Stock long block, Pfadt 1.875 Headers sans cats, 224/234 116+2 custom cam with upgraded pushrods and dual springs. A&A fuel system
[*]Pulley Size: 81mm = about 9.5psi
[*]Fuel type targeted: Texas 93 octane with meth
[*]HP/TQ (Dyno Graph if you have it): I have it, but not computer savvy enough to post it....647/605 with lots of belt slip
[*]Impressions: Really pleased with it. IAT's are way better than the jackshaft Maggie TVS on my previous Vette. Doesn't go up near as high under boost and recovers much faster. I have the belt slip solved, but haven't had it on a dyno since fixing it. Currently looking into a bigger throttle body for it.

iced98lx

added you to the list, thanks!

monsta01

I just got a Grand Sport with a Heartbeat installed. I hope to dyno this week.

iced98lx