99tramsamc/fia

iTrader: (2)

I know how did you do it without the turbo! Had someone interested in the long block. Deal feel through. Put a victor jr on it with a 6ls 6012 box and a set of dyno tech headers. I was very surprised at the power it made.
With 25 degrees of timing. 514 hp@6300 and 489ftlbs @5000.
This is a stock bottom end 5.3l flat tops, with a custom grind comp cam in it. BTR platinum spring kit w / titanium retainers. Truion upgrade. EBay head studs and felpro mls head gaskets. Standard JY stuff. Just thought I'd share it with you guys. Could have played with the timing curve a little more and could've put some more fuel in it. But i was out of time. Let know what you think.

JoeNova

500 HP doesn't seem unreasonable on an engine dyno.
A stock 320 HP L33 on an engine dyno with no accessories and an electric water pump puts out about 360 HP.

Nismo Kid

iTrader: (3)

Nice numbers.

DavidBoren

Man, these LS motors can move some air. That's almost 100hp/1liter... impressive, especially from a junkyard built V8.

Spectre86

iTrader: (42)

how much timing and what fuel?

99tramsamc/fia

iTrader: (2)

25 degrees on pump 93

gnx7

iTrader: (28)

With stock heads and only spinning it to 6300rpm I'd consider it pretty generous from a 5.3!

NateLS1Mustang

iTrader: (2)

Yeah that's pretty awesome numbers coming from a NA 5.3l. Would still make 400+ to the wheels

Spectre86

iTrader: (42)

pretty strong 5.3 looks like it was still gaining power at 6300.

LT1PWRD

iTrader: (2)

Nice job!
So is it safe to say if you double atmosphere at around 15 ish psi it would do close to 1000fwhp? Provided the fuel system supported it.

SUTTERERMAN85

iTrader: (42)

What are the specs on the cam?

Photochop

iTrader: (74)

Wow, seems really generous. You should check and see what it makes on the chassis dyno NA as well to compare. Should make around 410rw thru an auto

Forcefed86

iTrader: (4)

Pretty impressive, seems like it was still making power at 6300. Did you rev it out any higher? What heads were on it? Also interested in the cam specs.

99tramsamc/fia

iTrader: (2)

Motor is a aluminum 5.3l with flat tops. 799 heads. Block was decked and touch honed. New hastings rings. All stock lowwer end. Reused the rod and main bearings. Felpro MLS head gaskets ebay head studs. Btr platinum spring kit. With this cam.

SUTTERERMAN85

iTrader: (42)

Thanks for posting the cam specs. Why so much advance on the cam? Just curious.

LJMSJohn

I had a 4th Gen Fbody with a 9.2:1 LM7 equipped with 706 heads, LS1 intake, stage 2 cam and 1 3/4 long tubes made 395 to the tire through a T56 and a 10 bolt...

I would say those numbers aren't too far off...

Curious to the thought proccess on that camshaft...must've been planning a pretty small turbo.

99tramsamc/fia

iTrader: (2)

This motor was or will go into my 5000lb mud truck. Turbo is a s475 83mm turbine 1.10t6. The cam was what the guy at comp ground up for it.
I didn't turn it any harder because it started to lay over. And I had a guy looking to buy the long block so I didn't see the point of beating it up on the dyno.

Boostedbuick

Nice!