1/4 mile et goal

MustangGlx

New Member

Apr 2, 2003

147

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Connecticut

Jun 14, 2005

#1

• Jun 14, 2005

• #1

I wanna run somwhere in the 13.5 area before summer is over, i have a 69 grande w/ 302 with the following mods.
Ported and polised Hi-Po 289 heads
edelbrock performer intake manifold ( right now im shoppinf for a used weiand X-celerator)
Comp cams Magnum Muscle 282S Cam
lift .528 intake & exhaust
durration at .050 236
Lobe seperation 110
Holley 650cfm 4bbl double pumper
Msd 6a ignition w/ blaster II coil
Hedman torque step long tube headers
Shelby style side exit exhaust w/glasspack mufflers
borg warner t-10
9" locker rear with 3.89 gears
centerforce II clutch and preasure plate
hurst competition plus shifter
and traction bars

any guesses on what i might have for power at the wheels and what i might be able to run now, and what it would take to run in the mid 13's? any insight would be appriciated, thanks, Joe

 

iskwezm

10 Year Member

May 24, 2005

4,159

20

79

Rowland Heights,California

Jun 15, 2005

#2

• Jun 15, 2005

• #2

Yeaaars back I had a similiar combo and ran 13.90's.

 

65ShelbyClone

Founding Member

Sep 9, 2000

4,675

38

119

Antelope Valley, SoCal

Jun 15, 2005

#3

• Jun 15, 2005

• #3

I think the Performer intake may be holding you back the most. I got my X-Celerator on Ebay for something like $93 shipped and it lookes to be very low mileage. Other than that, I dont see why your whole setup couldnt get mid to high 13s.

 

302 coupe

Founding Member

Mar 2, 2000

1,952

3

36

Macon, Ga.

Jun 15, 2005

#4

• Jun 15, 2005

• #4

ditch the performer.....

 

S

steel1212

Active Member

Jun 24, 2004

1,180

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Frankfort, Ky

Jun 15, 2005

#5

• Jun 15, 2005

• #5

I would have to agree with everybody else, get rid of the performer and get something better. I love my airgap, some say go single plane though. If you have another set of tires get some slicks or put drag radials on there as well and I don't see why you shouldn't see 13s.

 

12sec67

Active Member

Oct 6, 2003

1,301

1

36

San Diego, Ca

Jun 15, 2005

#6

• Jun 15, 2005

• #6

with a rpm intake and similar mods i ran 13.6's

 

Vinyl66

Member

Mar 21, 2004

398

0

16

Jun 15, 2005

#7

• Jun 15, 2005

• #7

I am with the others. Get an RPM, RPM air gap, or a mild single plane and you should see 13's no problem. A set of ET streets or drag radials will help greatly as well.
I run little 215/60 14 BFG drag radials with my mild combo below and ran a 13.23 this past weekend.

 

MustangGlx

New Member

Apr 2, 2003

147

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Connecticut

Jun 15, 2005

#8

• Jun 15, 2005

• #8

i have firestone firehawk indy 500 tires 225 70 r14 for rubber on the rears for tires

 

2bav8

Founding Member

Nov 30, 1998

2,511

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47

Mesa, AZ

Jun 15, 2005

#9

• Jun 15, 2005

• #9

Better tires won't hurt either.
If you're going to use street tires, at least get the rears to a 245, if not 275.
IIFC, they fit without problems on a '69.

 

Edbert

Founding Member

Jul 13, 2002

3,548

32

109

Austin TX

Jun 16, 2005

#10

• Jun 16, 2005

• #10

One other thing holding you back is those exhaust ports, unless they were opened up a LOT.

But as others said, you should be getting pretty close to mid 13s once you dump that RV manifold. Check out the VicJr too.

 

MustangGlx

New Member

Apr 2, 2003

147

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Connecticut

Jun 16, 2005

#11

• Jun 16, 2005

• #11

based on what you all ahve said i really need an intake manifold, and from what it looks like an rpm air gap is the way to go? is that the best for my application in your opinions?

 

Edbert

Founding Member

Jul 13, 2002

3,548

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109

Austin TX

Jun 16, 2005

#12

• Jun 16, 2005

• #12

MustangGlx said:

based on what you all ahve said i really need an intake manifold, and from what it looks like an rpm air gap is the way to go? is that the best for my application in your opinions?

Click to expand...

Ask 100 people and you'll get 99 different opinions

The RPM-AG is about as agressive as you can get with a dual plane manifold. Dual planes are generally more mild than a single plane and operate in a lower RPM band with more torque and less HP. Single plane manifolds can get very extreme and the racing versions will easilly eclipse any dual plane.

Are you running any equipment that requires significant vacuum (like power brakes)?

 

MustangGlx

New Member

Apr 2, 2003

147

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Connecticut

Jun 16, 2005

#13

• Jun 16, 2005

• #13

nope, i do not have power brakes, or anything that requires significant vaccume

 

6

66_stang

Member

Jul 4, 2004

154

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17

Woodlands TX

Jun 16, 2005

#14

• Jun 16, 2005

• #14

Not to hi-jack but i have a similair question my current setup with a very strong rebuilt 302 (dont know year sorry probably original engine)

270s cam
Performer Intake
Hipo Manifolds
auburn posi with 3.50 gears
Shift kit

With an auto tranny, what kinda E.T could i expect.. possibly 14's? Btw its a 66 A code coupe.

 

iskwezm

10 Year Member

May 24, 2005

4,159

20

79

Rowland Heights,California

Jun 16, 2005

#15

• Jun 16, 2005

• #15

66_stang said:

Not to hi-jack but i have a similair question my current setup with a very strong rebuilt 302 (dont know year sorry probably original engine)

270s cam
Performer Intake
Hipo Manifolds
auburn posi with 3.50 gears
Shift kit

With an auto tranny, what kinda E.T could i expect.. possibly 14's? Btw its a 66 A code coupe.

Click to expand...

I had the same combo,ran 13.90's-14.20's