514HP/506TQ NA LTx. What will it do with boost?
Thread Starter
Joined: Mar 2005
Posts: 2,161
Likes: 4
From: Millstone Twp, NJ
514HP/506TQ NA LTx. What will it do with boost? It's been a while since I provided an update on my build. I will save the really nitty gritty details for another thread. The engine is back together and we hit the engine dyno for break-in. The build thread can be found here: http://www.ellweinengines.com/ERE48/ERE48ReDo.htm
To make sure everything was in proper order, I decided to have the engine broken in on an engine dyno before it goes back in the car. Karl swapped on a GM performance carb intake, 750cfm carb and basic distributor for the dyno session to keep things simple. I wasn't going for a number but obviously wanted to make sure the engine was healthy. Keep in mind the timing was around 34 deg and fueling was not ideal due to lack of jets and time we wanted to spend. Our goal was not for a perfect NA number but simply to break in the engine. Based on the results below, I'm very pleased but not quite sure what to expect when I throw 18-21 lbs of boost at it from a F1A Procharger. Any ideas?
General specs:
383 LTx - 9.5:1 Static Compression
Callies Dragonslayer crank, Callies rods
Diamond custom pistons (double diamond coated, gas ports, H13 pin)
LE Lunati custom blower cam (226/239 112 under 600 lift)
LE TFS 21 degree ported heads
Comp Ultra 1.6 RR, Crower link bar lifters
Results and video: 514HP/506TQ
To make sure everything was in proper order, I decided to have the engine broken in on an engine dyno before it goes back in the car. Karl swapped on a GM performance carb intake, 750cfm carb and basic distributor for the dyno session to keep things simple. I wasn't going for a number but obviously wanted to make sure the engine was healthy. Keep in mind the timing was around 34 deg and fueling was not ideal due to lack of jets and time we wanted to spend. Our goal was not for a perfect NA number but simply to break in the engine. Based on the results below, I'm very pleased but not quite sure what to expect when I throw 18-21 lbs of boost at it from a F1A Procharger. Any ideas?
General specs:
383 LTx - 9.5:1 Static Compression
Callies Dragonslayer crank, Callies rods
Diamond custom pistons (double diamond coated, gas ports, H13 pin)
LE Lunati custom blower cam (226/239 112 under 600 lift)
LE TFS 21 degree ported heads
Comp Ultra 1.6 RR, Crower link bar lifters
Results and video: 514HP/506TQ
Last edited by Blackbirdws6; Dec 15, 2014 at 10:34 AM.
This is just offered for perspective since we so rarely see engine dyno numbers.
Thread Starter
Joined: Mar 2005
Posts: 2,161
Likes: 4
From: Millstone Twp, NJ
Correct. It may have made more with more appropriate fueling but keep in mind this is just an engine dyno. No accessories and an electric water pump as well. I'm just curious what this may do with boost.
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On The Tree
Joined: Apr 2007
Posts: 118
Likes: 0
From: Southern Maryland
I think if you can feed it enough fuel it should do 1000 crank HP...(a few times at least). The crank/rods/pistons can handle it. But the block???? You know we were talking about how that much power makes the cylinders out-of-round. 
IT will be fun to see your car on the on-ramps again.
Karl
IT will be fun to see your car on the on-ramps again.
Karl
Thread Starter
Joined: Mar 2005
Posts: 2,161
Likes: 4
From: Millstone Twp, NJ
I think if you can feed it enough fuel it should do 1000 crank HP...(a few times at least). The crank/rods/pistons can handle it. But the block???? You know we were talking about how that much power makes the cylinders out-of-round.
IT will be fun to see your car on the on-ramps again.
Karl
IT will be fun to see your car on the on-ramps again.
Karl
Stacks!
Nice numbers...my 389 w/LE TF, big cam and 11.25:1 compression was broken in on the engine dyno and it made 500hp and 500 tq pulling to 6000 rpm...zero tuning or adjustments - just break in. In the end it made 435 rwhp and 445 rwtq starving for air (ram air box and 52mm tb)...lost 20rwhp just from closing the hood.
You car will be a beast...hope you enjoy it!
You car will be a beast...hope you enjoy it!
Thread Starter
Joined: Mar 2005
Posts: 2,161
Likes: 4
From: Millstone Twp, NJ
Nice numbers...my 389 w/LE TF, big cam and 11.25:1 compression was broken in on the engine dyno and it made 500hp and 500 tq pulling to 6000 rpm...zero tuning or adjustments - just break in. In the end it made 435 rwhp and 445 rwtq starving for air (ram air box and 52mm tb)...lost 20rwhp just from closing the hood.
You car will be a beast...hope you enjoy it!
You car will be a beast...hope you enjoy it!
If he can run 21# then maybe after the pressure drop, after every choke point, he could see 14-15# in the cylinder.
I would say 830 if pushing it hard, and keeping the air charge cool.
