New car, gonna play with the timing tomorrow, opinions?

mac16

Member

Sep 9, 2004

51

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8

Nov 11, 2005

#1

• Nov 11, 2005

• #1

Ive only had the car 2 weeks and I love it, but I know there is tons of power left in it. Right now the timing is the standard 10 BTDC, I was thinking about advancing it to like 14? Ive already been running the car on 92 octane so that part isnt a problem. What do you guys think, will it be worth it? Noticable power gain?

My setup is: 331, Edelbrock Performer RPM Heads, Performer RPM Intake (Both port matched), XE274, 70mm TB, 80mm Pro-M Maf, 30#'ers, 190 pump. I dont really know what else to list I think thats the most important information.

Thanks guys

 

DMAN302

My mom says thanks for the pearl necklace.

Nov 8, 2003

2,120

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59

windsor, Canada

Nov 11, 2005

#2

• Nov 11, 2005

• #2

My Eddy heads seem to like 14deg..nice place to start, You also need to experiment with the fuel pressure as well...test runs with minor changes of the two and see which ones you like( and the car likes) best.

 

I

IntenseBlue

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Jul 10, 2005

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Nov 11, 2005

#3

• Nov 11, 2005

• #3

You should feel a pretty big difference.

 

281pony

Active Member

Aug 31, 2003

2,681

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46

Oly, WA

Nov 11, 2005

#4

• Nov 11, 2005

• #4

it is ~10.2:1 compression also.

not sure how far your going to be able to bump timing. never experimented.

 

Paul Perreca

New Member

Mar 30, 2005

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Nov 11, 2005

#5

• Nov 11, 2005

• #5

sweet setup though - pics??

 

stangnutlx

New Member

May 24, 2005

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Coventry, RI

Nov 11, 2005

#6

• Nov 11, 2005

• #6

im running 18* initial on my stock 302 with just full exhaust and 93 octane car loves it.....

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

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Nov 12, 2005

#7

• Nov 12, 2005

• #7

281pony said:

it is ~10.2:1 compression also.

not sure how far your going to be able to bump timing. never experimented.

Click to expand...

Now how would you know that, unless...........

 

mac16

Member

Sep 9, 2004

51

2

8

Nov 12, 2005

#8

• Nov 12, 2005

• #8

Yes it is 281pony's old car. Would the compression actually pose a potential risk? If so I dont really want to take it, its just something I wanted to try, would setting it to say 12 make a difference even? I really dont want to take any chances. It will eventually get a dyno tune next spring when it comes out of the garage after the winter.

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

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Nov 12, 2005

#9

• Nov 12, 2005

• #9

Compression ratio is absolutely a big factor.

There are no magic numbers out there. You can choose a grade of gasoline you plan to stick with and then up the timing by a degree or two at a time until you get pinging. Then back it down a couple degrees from there.

FWIW, I personally am not a fan of the timing bump game, but that is just me.

Good luck.

 

281pony

Active Member

Aug 31, 2003

2,681

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Oly, WA

Nov 12, 2005

#10

• Nov 12, 2005

• #10

i would wait until you go have it dyno tuned to mess with timing/fuel pressure personally.

 

mac16

Member

Sep 9, 2004

51

2

8

Nov 12, 2005

#11

• Nov 12, 2005

• #11

sounds like a plan . It was just an idea as we recently aquired a timing gun, and I started reading that most people have success with 14 so I though Id give it a shot, but looks like it will probably stay the same until it gets tuned.