UPDATE! This doesn't sound right does it?

Reply Subscribe

Thread Tools

Search this Thread

Jul 9, 2015 | 04:32 PM

#21

LS_86Cut442

Thread Starter

On The Tree

Joined: Jun 2015

Posts: 124

Likes: 1

From: chicago, illinois

Quote:

Originally Posted by thunderstruck507

I haven't made a good pass yet. Old setup was an ls1 with same size cam but heads were a little less ported. It made 30hp/30tq less than now and ran 11.67@115mph on a 1.7 60 ft in a car weighing right at 6700lbs. DA was around 800ft.

Best 1/8th was 7.45@95mph which was better.

I'm hoping to run 11.40@118 or and maybe faster if I ever get to run in good air.

If your car isn't super heavy you should make your goal of 10s. My car isn't a super performer at the drag strip.

6700#???? Wow is it in a truck? The car should only weigh about 3400-3500 with me In it.

Jul 9, 2015 | 04:34 PM

#22

Burken01

TECH Addict

iTrader: (88)

Joined: Mar 2005

Posts: 2,925

Likes: 14

From: Anaheim, Ca

Quote:

Originally Posted by HCI2000SS

So let me ask you this OP...say your car makes EXACTLY 415 rwhp on this guy's dyno, but runs high 10's at say close to 130 at the track...how will you feel then?

Good point

Jul 9, 2015 | 08:11 PM

#23

1989GTA

TECH Junkie

Joined: Dec 2005

Posts: 3,092

Likes: 11

What brand of dyno does he have?

Jul 9, 2015 | 08:27 PM

#24

LS_86Cut442

Thread Starter

On The Tree

Joined: Jun 2015

Posts: 124

Likes: 1

From: chicago, illinois

Quote:

Originally Posted by 1989GTA

What brand of dyno does he have?

I have no idea. Since he projected it to be so low I'm guessing it's a mustang dyno

Jul 10, 2015 | 08:23 AM

#25

thunderstruck507

11 Second Club

iTrader: (18)

Joined: Mar 2008

Posts: 8,358

Likes: 27

From: Northwest AR

Quote:

Originally Posted by LS_86Cut442

6700#???? Wow is it in a truck? The car should only weigh about 3400-3500 with me In it.

oops not sure what happened there...car weighs ~3500 plus me at 160

Jul 10, 2015 | 09:09 AM

#26

LS_86Cut442

Thread Starter

On The Tree

Joined: Jun 2015

Posts: 124

Likes: 1

From: chicago, illinois

Yeah my car will be around 3400-3500 with me in it. I just want to run 10s and be able to **** on the new 5.0s.

Jul 13, 2015 | 06:55 PM

#27

LS_86Cut442

Thread Starter

On The Tree

Joined: Jun 2015

Posts: 124

Likes: 1

From: chicago, illinois

Update

Just talked to the engine builder today to clarify why he projected such low rwhp. He calculated drive train loss at 28%. On top of that he took off another 40-60 hp because at this point I only have 2.5" true duals. He's putting the motor on the engine dyno by the end of the week and hopes to be around 600 at the flywheel. That makes me feel a little better.

Jul 17, 2015 | 04:03 AM

#28

Exidous

TECH Fanatic

iTrader: (11)

Joined: Feb 2006

Posts: 1,747

Likes: 4

From: Under a rock

Sounds like one of those promise you a pinto and provide a corvette kinda guys. Ignore that 415. You WILL make a lot more than that. You could leave the parking brake on so you can meet your builders recommendation.