any one know what times i should run

redrumracing01

redrumracing01

New Member
Nov 18, 2004
250
0
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bellvue,wa
#1
does any one have a good guesstament on what my notch should run.mod for my car are,
ported & polished 289 heads w/1.94-1.60 valves and 1.6 roller rockers/53cc chambers,stock 88 gt roller cam short block w/stock cam,long tubes,2 1/2 in exaust no cats,edelbrok torqer intake,600cfm holley,z-code t-5,new clutch,1 in phelonic carb spacer,2.73 7.5 rear,275 bfg radeials,race weght 2670lbs race weight.no power stering a/c smog pump.timing at 12 degress.
i am hoping to run around a 13.8 if i can walk it just right so i dont burn out.
early er this season i ran it with diff heads (stock351w),and i ran a 14.5@102 with a 2.99 60ft launching at 3800rpm
any suggestions on how to launch this thing would be great,i was thinkg of slipping the clutch until 5000rpm in first other wise i will just spinem like crazy,and in second slip it untill 4000rpm.when i went to the track with this car i spun em all the way through second and as soon as i hit third i gaind a crap load of speed :nice:
 
#3
You are going to be very limited by "walking it off the line". You are not going to be near the potential of the engine until you can come off hard; you cannot come off hard until you get the 8.8 with some gears. Having said that, your mph will likely pickup by 2-4.
 
#6
i understand the limitations of my 7.5 im just being lazy to take my 8.8 out of my gt,and the other thing is im pretty sure i need to have some wide stciky tires right now i have a set of 255 bfs on the back and all they do is spin im thinking about buying a set of the new mt drs in a 275.yes i know my et was pretty weak but remember ive only ran the car twice and im not used to the new power and lose of traction 1-2 just roasts em.i just went for a drive in it and from a rolling start in 1st i smoked about 20ft then when i hit secon i cont to smoke em foe another 80-100ft. :D but next friday will tell im going to the track after i get my paycheck :nice:and a 4mph trap in crease would be awsome
 
#8
my best lauch on street tires with my 273s was from idel and just be soft with the clutch 2.2 stock sized street tires. and i did the 1/4 in 14.0 @99.7 but i know i should not have the power curve you have so things might be different. with my 3.27s well its in the sig and with street tires im still close to idle and slow with the clutch but they cherp niecly in to 2nd
 
#9
That 7.5 sounds like a tow-truck-trip waiting to happen to me.... (that being said...)

I have my best luck leaving off idle, then just feeding the throtle to it quickly but smoothe, then I short shift 1st just as soon as the tires let go (about 4000), it bogs a little going into 2nd, but its either that or the tires are history, then in second it gets loose again about 4500 when the motor starts to breathe, once in third, it stays hooked and pulls good. just try to be smoothe and if it gets loose peddal it, or shift right away. (imho)
Mine ran [email protected] but thats with a suspention made for corners, in a drag type car it would probably run 12.8-9.

With a decent suspention set-up you could run 13.8 real easy with very little power. (stock 5.0s can do that)

My .02 would be an 8.8 with a 3.27 or 3.55... still very streetable, but a big improvement over a 2.73 7.5.
If its going to be a weekender, then 3.73 or 4.10 would fill the bill.

DD
:flag: :nice:

EDIT: ps... I have 3.08's
 
#11
ddonaca351 said:
That 7.5 sounds like a tow-truck-trip waiting to happen to me.... (that being said...)

I have my best luck leaving off idle, then just feeding the throtle to it quickly but smoothe, then I short shift 1st just as soon as the tires let go (about 4000), it bogs a little going into 2nd, but its either that or the tires are history, then in second it gets loose again about 4500 when the motor starts to breathe, once in third, it stays hooked and pulls good. just try to be smoothe and if it gets loose peddal it, or shift right away. (imho)
Mine ran [email protected] but thats with a suspention made for corners, in a drag type car it would probably run 12.8-9.

With a decent suspention set-up you could run 13.8 real easy with very little power. (stock 5.0s can do that)

My .02 would be an 8.8 with a 3.27 or 3.55... still very streetable, but a big improvement over a 2.73 7.5.
If its going to be a weekender, then 3.73 or 4.10 would fill the bill.

DD
:flag: :nice:

EDIT: ps... I have 3.08's
Click to expand...
thanks for the advice on how i should launch it the sounds like a good idea im just waiting to put in my 8.8 because im being lazy and im waiting to start buying parts to build it im thinkin 4.10s 33 spline moser axels,and a spool dont care about driveability too much thats what my hondas for. but some people are telling me 4.10s are too much and there saying to go with 3.55s but i want to turn it in to a braket car that runs 11-12.5 1/4s and still be somewhat able to drive it on the street.then again the car would be driven to the track but i only go 55-60 mph on the freeway in it any ways.
 
#13
redrumracing01 said:
thanks for the advice on how i should launch it the sounds like a good idea im just waiting to put in my 8.8 because im being lazy and im waiting to start buying parts to build it im thinkin 4.10s 33 spline moser axels,and a spool dont care about driveability too much thats what my hondas for. but some people are telling me 4.10s are too much and there saying to go with 3.55s but i want to turn it in to a braket car that runs 11-12.5 1/4s and still be somewhat able to drive it on the street.then again the car would be driven to the track but i only go 55-60 mph on the freeway in it any ways.
Click to expand...

DO NOT RUN A SPOOL unless you want to break an axle. (imho)
A spool is made for a drag only car.... it is not made to turn.
A stock ford lim-slip in an 8.8 with "a kit and a third" will get ya into the 400hp zone and 11s. (someone who knows MUCH more than I told me in no uncertain terms)

If you are going nastier than that then may-be an aftermarket is needed, but if its going to be street driven dont use a spool. Its not made for that, youll be scrubbing tires, understear like a bitch, etc... and eventually break parts. (imho)

If you want 31 splines just use a trac-loc out of a truck, most of them are 31s if I remember right.
(somebody chime in)

Now I am a big one for anal overkill when it comes to selecting parts, but get the right ones for the application. If its drag only:spool, if it sees the street:trac-loc / detroit / powertrax / whoever...

another .02 (ya owe me .04 now :D )

Dave-
:flag:

PS again imho 3.73 is a great gear that will drive ya to the track but still reallllyyy perform well while there.
 
#14
ddonaca351 said:
DO NOT RUN A SPOOL unless you want to break an axle. (imho)
A spool is made for a drag only car.... it is not made to turn.
A stock ford lim-slip in an 8.8 with "a kit and a third" will get ya into the 400hp zone and 11s. (someone who knows MUCH more than I told me in no uncertain terms)

If you are going nastier than that then may-be an aftermarket is needed, but if its going to be street driven dont use a spool. Its not made for that, youll be scrubbing tires, understear like a bitch, etc... and eventually break parts. (imho)

If you want 31 splines just use a trac-loc out of a truck, most of them are 31s if I remember right.
(somebody chime in)

Now I am a big one for anal overkill when it comes to selecting parts, but get the right ones for the application. If its drag only:spool, if it sees the street:trac-loc / detroit / powertrax / whoever...

another .02 (ya owe me .04 now :D )

Dave-
:flag:

PS again imho 3.73 is a great gear that will drive ya to the track but still reallllyyy perform well while there.
Click to expand...
thats all defffinitly true,im still deciding on all that stuff but i dont want to keep buying things that i will have to replace someday,my plans for the future are turnning the car in to a nasty drag radeial car that runs 9s but then again thats a long time from now but thanks for the imput :nice:
 
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