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People who think I hate PD blowers, Heartbeat fun inside
So I don't hate PD blowers, just prefer centris. Friends have a car at the shop with a heartbeat, and it is a nice setup. Well packaged and put together. Car made a solid ~750rwhp on a 416ci forged 6 bolt motor. Nice heads, nice cam. Came in for a few upgrades.
Swapping headers, building a new intake, redoing the intercooler setup and a few things to see if it will make 1100+rwhp. Fun project.
I bet we do it. Just got to get creative with the air inlet/intercooler before the heartbeat.
Step 1, add twin billet PTE turbos to feed the heart beat
I bet we do it. Just got to get creative with the air inlet/intercooler before the heartbeat.
Step 1, add twin billet PTE turbos to feed the heart beat
If that doesn't do it, nothing will. Are you seriously leaving the heartbeat on there with those ? Should be interesting. I have seen dual induction systems go both ways... amazing, or disaster.
I am impressed if you are trying it.
Trying it. Twin billet 66s. He wants the low end and top end to make 1000+ easy. They have some tips/tricks up their sleeves so it should work. Won't make as much as turbos alone because the blower will be a restriction but it should make a fun daily driver.
Worst case he could pull the blower and make 1300+rwhp with ease.
That's pretty awesome. I've seen that type of thing done on factory blown Mustangs, but never on an LSx motor.
What kind of pulley setup is on the Heartbeat right now? I'd think 750 PD RWHP would be a handful enough on the street. Probably makes killer torque, too.
No idea on pulley. Car was making ~1000rwhp with n2o but went through a few motors. Wants that power all the time with a nice power band. Not going for anything too crazy, just a fun overall car.
No idea on pulley. Car was making ~1000rwhp with n2o but went through a few motors. Wants that power all the time with a nice power band. Not going for anything too crazy, just a fun overall car.
"Nothing too crazy"....and shooting for 1100rwhp??? Sounds totally sane to me. Did you explain to him that no racing is done under 3500 rpm and having power there is useless? Then there's the "do you want to spin the tires at half throttle or 3/4 throttle"? Maybe you need to ratchet that down to 1/4 or half throttle. Sounds like a thoroughly stupid/insanely fun project! I want a ride when it's done
"Nothing too crazy"....and shooting for 1100rwhp??? Sounds totally sane to me. Did you explain to him that no racing is done under 3500 rpm and having power there is useless? Then there's the "do you want to spin the tires at half throttle or 3/4 throttle"? Maybe you need to ratchet that down to 1/4 or half throttle. Sounds like a thoroughly stupid/insanely fun project! I want a ride when it's done
Stop your wining that's what boost by throttle position is for! In fact you could use the supercharger bypass valve to control manifold pressure. The idea is at 1/4 throttle you only have 1/4 boost pressure (or any number you want), at 1/2 throttle you have 1/2 peak boost pressure and so on. Makes the car very driveable.
Would be better off getting the turbos to work correctly but I love these mad twin charged setups.
What are you plan king for charge cooling? Would be good if you could do air to water for the turbos as you only have one cooling circuit then.
Getting a big air to air in front and keeping the Maggie cooler as is. It already has a big upgrade HE and a ton of other mods. Car actually made ~1200rwhp on n2o. I was mistaken. Hopefully it can do that on boost alone.
I believe the idea is to open the Maggie bypass valve up at higher RPM to allow the turbos to feed a good amount of boost past the blower, but not completely sure. The shop would have to explain all the little details. They have it all planned out and have done this before.
I think by opening the SC bypass valve you can control the work the supercharger is doing. NOT allow air past the SC. The SC will just take the air at its inlet and move more of it than the engine can take. It doesn't care what the entry pressure is. So by opening the bypass you basically reduce the pressure increase across the SC and thus the amount of work the supercharger is doing (less increase in IATs post supercharger).
Interesting you going a2a. Take it this isn't on a vette (well you can guess that from the pics) lol. Should be a killer build. Do you think the turbos are large engine for a 700rwhp engine? I would have thought something more in the 70mm range would have been better suited. You are basically turning your LS engine into a big block with the supercharger. So the turbos should be sized accordingly.
What's the point? For the money and time invested he could have bought a fleet of ex can-am race cars or stock cars, all with lovely built Ls7s for the same money. I be the could have nearly bought a Riley track day car for the total investment!
I really don't get why people try to build cars for all eventualities. It's pointless and means they are just crap at everything. He's starting with a 4100lbs car and trying to turn it into a road race car. Go show this to the corvette road race guys on this board and see what they say!
08-04-2014, 05:55 PM
People who think I hate PD blowers, Heartbeat fun inside
. Did you explain to him that no racing is done under 3500 rpm and having power there is useless? Then there's the "do you want to spin the tires at half throttle or 3/4 throttle"? Maybe you need to ratchet that down to 1/4 or half throttle. Sounds like a thoroughly stupid/insanely fun project! I want a ride when it's done
