Dyno today. Pretty good news.

6

65racecoupe

Founding Member

Mar 24, 2002

1,066

0

0

Tempe, AZ

Apr 13, 2005

#1

• Apr 13, 2005

• #1

Good and bad news, bad meaning I just need to spend a little more.

We are pretty sure what is up with the car not making power like it is supposed to.

I did gain a bunch of HP and Torque compared to last time.

Now, I am at 340 HP and 325 tq at about 5300 to the wheels. I was at 289 / 289, so th at was a good improvement.

I found my valve covers were leaking a little oil, no biggie, just smokey.

331 stroker built by Beau at Mental Addiction Motorsports, Mesa, AZ.


Here is what I need to do...

1. Adjust valves
2. Fix my cooling system ASAP.
3. Install serpentine pulleys and a high output alternator.

I believe, now, that this will make 400 at the wheels at 6500+ rpm.

 

1

10secgoal

Active Member

Dec 1, 2003

2,801

3

49

San Diego

Apr 13, 2005

#2

• Apr 13, 2005

• #2

Gaining 60 hp to the rear by adjusting valves and adding underdrive pulleys is asking a bit much. That's about 70 extra horses at the crank.

 

C

C0V3R

Member

Feb 14, 2003

524

0

16

Australia

Apr 13, 2005

#3

• Apr 13, 2005

• #3

Whats your engine setup?

 

6

65racecoupe

Founding Member

Mar 24, 2002

1,066

0

0

Tempe, AZ

Apr 13, 2005

#4

• Apr 13, 2005

• #4

I don't think it is asking alot only because power is stopping at 5300. It is built to make it to 6800.

The power is still climbing at 5300.

Engine set up....

331 stroker 10.5 - 1 compression
TFS fully ported heads
Comp Roller Cam 530 / 540 or so (specs are in the car)
Hooker Super Comp Headers
Speed Demon 750
Vic Jr intake

 

F

fastdave

New Member

Apr 19, 2003

144

0

0

Chandler,AZ

Apr 14, 2005

#5

• Apr 14, 2005

• #5

How was the cooling prior to the dyno? Sometimes they will advance the timing too much and that will sometimes cause it to get hot. Is the engine broke in yet?

 

6

65racecoupe

Founding Member

Mar 24, 2002

1,066

0

0

Tempe, AZ

Apr 14, 2005

#6

• Apr 14, 2005

• #6

The cooling system was FINE, but in Utah.

The timing isn't far advanced, just correct now.

I am pretty sure that the fan isn't pushing the air that it needs to.

 

Bullitt

Packin' Heat

Founding Member

Jan 13, 2000

2,743

0

47

Houston, TX

Apr 14, 2005

#7

• Apr 14, 2005

• #7

nice numbers. want to see them at 6500 though!!

 

Edbert

Founding Member

Jul 13, 2002

3,548

32

109

Austin TX

Apr 14, 2005

#8

• Apr 14, 2005

• #8

I want to know how you got from 289/289 to 340/325!

 

F

ForceFed70

That's why they call it "dope"

Founding Member

Dec 6, 1999

4,818

1

69

BC Canada

Apr 14, 2005

#9

• Apr 14, 2005

• #9

Edbert said:

I want to know how you got from 289/289 to 340/325!

Click to expand...

Ditto.. what was the problem?

 

allcarfan

The Answer Man

Founding Member

Apr 8, 2001

2,458

1

56

North Atlanta

Apr 14, 2005

#10

• Apr 14, 2005

• #10

what TFS heads do you have?

What size primaries do you have?

isnt that a lot of carb?

I have a similar setup with a little bit more aggressive camshaft, a 650 speed demon and 1 3/4" primary custom headers. My TFS heads are the 185cc version. I, too, am hoping for 400 at the wheels through a c4 with a 3000 stall.

 

6

65racecoupe

Founding Member

Mar 24, 2002

1,066

0

0

Tempe, AZ

Apr 14, 2005

#11

• Apr 14, 2005

• #11

I jumped up in power because of tuning. Last time I was on a dyno, I got my numbers only, he didn't have time to tune it.

I thought I was running out of fuel, but I am not. I am dipping at 54 - 5500 and then it comes back, and then makes nothing after 5800.

Kieth, the dyno guy, says that the engine sounds like the valves are out of wack at high rpms.