How much hp and 1/8 ET

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68 barracuda 68

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hi, waiting on my engine getting finish, the combo is 408cid , mild ported W2 heads, TTi W2 headers, 830 holley,10,8:1 comp, comp cam duration 296 valve lift inn 0,649 exaust 0,651 rpm range 4200 to 7400. 727 tci transmission, dynamic 9,5 3800-4200 stall, 4,56 gear, 28-10,5x15 slicks. How mutch horsepower can i expect to have, and 1/8 ET weigt of the car is around 3000lbs
 
hi, waiting on my engine getting finish, the combo is 408cid , mild ported W2 heads, TTi W2 headers, 830 holley,10,8:1 comp, comp cam duration 296 valve lift inn 0,649 exaust 0,651 rpm range 4200 to 7400. 727 tci transmission, dynamic 9,5 3800-4200 stall, 4,56 gear, 28-10,5x15 slicks. How mutch horsepower can i expect to have, and 1/8 ET weigt of the car is around 3000lbs
If you've never drove a car like that I'd say your in for one hell of a ride!
 
500-550 HP & Depending on your suspension, 11.80-12.00 just my opinion. how many times have you been down the track also play's a bigger role in ET times, Good luck fun times ahead.
 
500-550 HP & Depending on your suspension, 11.80-12.00 just my opinion. how many times have you been down the track also play's a bigger role in ET times, Good luck fun times ahead.
Been driving for some years, suspension is Qa1 and qa1 front
 
Well been driving 5,56 1/8 but that was a another car, next seasonn with be with my barracuda street legal, my hope is to drive 6,70 1/8
10-4.
Well been driving 5,56 1/8 but that was a another car, next seasonn with be with my barracuda street legal, my hope is to drive 6,70 1/8
Cool your a new member and we have no background. And you guys over ponds like some crazy horsepower.
 
500-550 HP & Depending on your suspension, 11.80-12.00 just my opinion. how many times have you been down the track also play's a bigger role in ET times, Good luck fun times ahead.

If this is accurate it's very similar to my car which makes ballpark 500 at the crank (I only know what it makes at the wheels) and runs 11.70's in the quarter. That goes 7.40's in the 1/8th
 
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Im getting the engine tested and tuned at the flywheel, what does the calculator says about hp on my combo? Is wallace calculator hp at the flywheel?
 
Im getting the engine tested and tuned at the flywheel, what does the calculator says about hp on my combo? Is wallace calculator hp at the flywheel?
That's a good question, I've often wondered the same, but comparing it to my build I would say Yes, its flywheel comparison?
 
hi, waiting on my engine getting finish, the combo is 408cid , mild ported W2 heads, TTi W2 headers, 830 holley,10,8:1 comp, comp cam duration 296 valve lift inn 0,649 exaust 0,651 rpm range 4200 to 7400. 727 tci transmission, dynamic 9,5 3800-4200 stall, 4,56 gear, 28-10,5x15 slicks. How mutch horsepower can i expect to have, and 1/8 ET weigt of the car is around 3000lbs

Should run 10.50’s easy enough. 6.60’s in 1/8
Obviously more convertor would help, and not sure exactly what cam you have
 
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Should run 10.50’s easy enough. 6.60’s in 1/8
Obviously more convertor would help, and not sure exactly what cam you have
That would be perferct, yes im also woried about the converter, but will make some runs in it if it goes 6,70 im happy with it, the class im going in is 6,70 Et. Here is my cam:
 
Well been driving 5,56 1/8 but that was a another car, next seasonn with be with my barracuda street legal, my hope is to drive 6,70 1/8

I don't think 6.70's will be a problem with what you listed, more converter will help. I went high 6.50's with less cam, 10.9-1, ported Edelbrocks, 727 with a 9.5" converter that flashed 5000, 4.10 gears and a 325 (28" tall) radial at 3260 pounds. If the heads are decent you could go faster than .50's.
 
ET is ALL chassis/converter!!!

What takes one person to go a certain ET, might take another 50-70HP less... Get the car to 60' like crazy and the ET will follow.
 
Im getting the engine tested and tuned at the flywheel, what does the calculator says about hp on my combo? Is wallace calculator hp at the flywheel?

Wallace is fwhp and @a mere 530hp with your car you have the potential for this when sorted>
60 Foot E.T. : 1.44
1/8 Mile E.T. : 6.55
1/8 Mile Trap Speed : 103.77
1/4 Mile E.T. : 10.38
1/4 Mile Trap Speed : 129
1/4 Mile Trap RPM : 7,069
 
Wallace is fwhp and @a mere 530hp with your car you have the potential for this when sorted>
60 Foot E.T. : 1.44
1/8 Mile E.T. : 6.55
1/8 Mile Trap Speed : 103.77
1/4 Mile E.T. : 10.38
1/4 Mile Trap Speed : 129
1/4 Mile Trap RPM : 7,069
Thanks, will give a update after the dyno results, hopefully in some few weeks
 
Wallace is fwhp and @a mere 530hp with your car you have the potential for this when sorted>
60 Foot E.T. : 1.44
1/8 Mile E.T. : 6.55
1/8 Mile Trap Speed : 103.77
1/4 Mile E.T. : 10.38
1/4 Mile Trap Speed : 129
1/4 Mile Trap RPM : 7,069
Spot on. Those numbers are right on what my 408 ran with Indy heads, 11.25:1 and 8 " 5400 stall. 3300# race weight. Rest of motor was much like yours. 10.38@130 was my best pass ever. 6.66@103 was best 1/8. Should be fun.
 
Spot on. Those numbers are right on what my 408 ran with Indy heads, 11.25:1 and 8 " 5400 stall. 3300# race weight. Rest of motor was much like yours. 10.38@130 was my best pass ever. 6.66@103 was best 1/8. Should be fun.
Which Indy heads ??
 
Spot on. Those numbers are right on what my 408 ran with Indy heads, 11.25:1 and 8 " 5400 stall. 3300# race weight. Rest of motor was much like yours. 10.38@130 was my best pass ever. 6.66@103 was best 1/8. Should be fun.

At 3300lbs you have stout motor that makes in the order of 585fwhp:thumbsup:
 
At 3300lbs you have stout motor that makes in the order of 585fwhp:thumbsup:
Long story short. I freshened it with 13.5:1 compression and max ported the heads. It came apart in a big way on the dyno. Had a oiling problem I never figured out. I now have a 511 with E MW heads.
 
roccodart440
I don't know how much your car weighs but my old full weight 70 Challenger street car ran 11.83 at 113 with around 450-475 hp with 440 ported stock heads, hyd cam.
 
roccodart440
I don't know how much your car weighs but my old full weight 70 Challenger street car ran 11.83 at 113 with around 450-475 hp with 440 ported stock heads, hyd cam.


not sure. the scale house has never been open and I don't have scales at home. I'd guess 3200+me
 
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