Total timing used for 1st,2nd,3rd,4th

[it's just a six]

Not sure if this has been posted before.

Just wondering about the total timing used for each gear.

I know there are a lot of variables,but from what I read here ,it seems most guys pull timing out only when going into 3rd gear or higher?

Guys w/there Syclones & Typhoons do not seem to pull out timing in the taller gears.

How many degrees do you guys pull out on a typicle street GN running pump gas & methanol inj?
Also the typical total timing in each gear.Say running 20-25 psi boost.

Thanks.

 

[mikestertwo]

Too general of a question to answer. Timing depends on mods, weight of vehicle, ect. Too many variables.

 

[SPOOLN]

Timing

Depends on what Grams per sec your MAF is reading .. Also depends on what chip you have burned for your combo.

 

[it's just a six]

I see there are many variables as I stated.

Just in general,do most guys take out a few degrees in the top gears?

Anyone can say what they run for total timing here & how much they pull out in top gears.

Or do most guys run the same timing all the way through a 1/4 mile run?

Thanks

 

[SPOOLN]

Timing

What is your combo?

 

[mikestertwo]

At the track I run 23* in low gears and 21* in higher gears...that's with alky. On the steet I run 21*/18* just to be safe for every day driving. This is with 23-24lbs boost.

 

[it's just a six]

At the track I run 23* in low gears and 21* in higher gears...that's with alky. On the steet I run 21*/18* just to be safe for every day driving. This is with 23-24lbs boost.

Thank you.
That's all I am really looking for.

I am just curious why it seems the Syclone guys do not pull timing out in the taller gears.

 

[mikestertwo]

I am just curious why it seems the Syclone guys do not pull timing out in the taller gears.

Lighter? What converter? Chevys use 5 head bolts per cylinder..less chance of blowing a head gasket

 

[ijames]

The stock chip leaves the timing the same and pulls out a little boost in 3rd and a little more in 4th, going from about 15 to 13-14 to 12 psi in 4th. Lots of guys do away with the stock boost controller setup and/or go to an external wastegate, so the chipmakers started leaving the boost settings the same and pulling 2-3 deg of timing in 3rd/4th instead. 93 octane pump gas no alky chips these days use about 20 degrees, and all out race chips maybe 23-25 degrees as a rough starting point. No idea on the Syclones.

 

[it's just a six]

Lighter? What converter? Chevys use 5 head bolts per cylinder..less chance of blowing a head gasket

Truck weighs 3600 LBS,stock L/U 2100 stall converter.

ijames,
Thanks. good info!

Yeh ,5 bolts per cyl helps,dont see a lot of blown heads gaskets on Sy/Ty's as compared to the Buick it seems.

Pistons letting go is the main problem when detonating w/Sy/Ty's.