 |
 |
 |
|
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
|
Go | New | Find | Notify | Tools | Reply | |
| 632 Headhunter Combos | Login/Join |
DRR Top Comp |
Looking for information on 632 with 395mc brodix headhunter heads. Power achieved with what parts, fuel being used , single or dual carb etc. Also et’s @ what weight ? Thanks David Lanning Lanning Electric Team Mickey Thompson | ||
|
DRR Sportsman |
Not exactly the same 632 383MC headhunters 06 Mullis 4 link @1975 w/driver 4:10 gear on gas 1250 APD 7.17 187 with 17X34X16 Hoosiers Working for the Weekend!!!! Fordyce Motorsports | |||
|
| DRR Elite |
Reach out to Howie Smith, IIRC, his former 632 had 395MC heads and a single gas carb. That Race Tech car was destroyed in a trailer fire several years ago and though lite, ran 6.90s in the heat at Numidia which is the slowest track in division 1 due to it's 1000 foot elevation on the hill. That engine as well HOwie's current SR20 632 were built by Bill Maroun a local builder known as RPD Development https://www.youtube.com/watch?v=98woaHiWQ3sThis message has been edited. Last edited by: 1320racer, | |||
|
| DRR S/Pro |
What are your goals? That combo is capable of making well over 1100 hp. But given the fact that this combo requires specific pistons and rockers why not move up to an SR20 combo? Only makes sense to feed those cubes unless u have the heads nowThis message has been edited. Last edited by: TOP38, | |||
|
| DRR Top Comp |
I have the engine parts currently to build this combo is the reason going towards this route. David Lanning Lanning Electric Team Mickey Thompson | |||
|
| DRR S/Pro |
Ok. What’s your goal for this build? | |||
|
| DRR Sportsman |
632 with head hunter 395 mc. I think I mistyped on another headhunter thread and said 383. PAR cam. On gas with a single APD carb Ran best of 4.51 at 1950ish pounds Motor ran better on gas than alcohol carb or alcohol injection Nothing significantly specially about our combo. You should be able to make over 1100 hp without blinking an eye, but could hit over 1200hp with a single carb | |||
|
| DRR Top Comp |
I’d like to go 4.4s low 50s with it on alky. David Lanning Lanning Electric Team Mickey Thompson | |||
|
| DRR Sportsman |
Others may disagree with me, but you’re gonna need to be below 1900 pounds in my opinion. We were about 0.04 to 0.07 slower on alcohol than gas. Very doable with an aluminum block in a 4 link dragster. | |||
|
| DRR Top Comp |
I should be more specific in my original post. I am trying to get more info on these engines as I have one already together (Par built) ran it a dozen runs and must be missing something as it’s 5 slower then my steel block 598 3x engine. It ran high 50s low 60s at 1960lb on gas David Lanning Lanning Electric Team Mickey Thompson | |||
|
| DRR S/Pro |
At what weight! | |||
|
| DRR Top Comp |
I’m have a new car built, haven’t decided on carbon or aluminum body/interior yet but it’ll 1875-1930 depending on them changes. David Lanning Lanning Electric Team Mickey Thompson | |||
|
| DRR S/Pro |
The HH head is a good head but u won’t see 1200 anything with it using a single carb bracket motor! And at 1100 plus hp gas will be faster | |||
|
| DRR S/Pro |
At 1875 built right you have a decent chance but you will likely need an 1/8 mile setup to meaning 4.30 gears and smaller tires like the little bubbas to achieve those et’s | |||
|
| DRR Top Comp |
That’s what my combo was and will be again on new car for tire/gear. What about cam and intake ? Any advantage to tunnel ram (profiler) with single 1450 over a sv632 edelbrock with same carb ? David Lanning Lanning Electric Team Mickey Thompson | |||
|
| DRR Elite |
Considering that numerous engine builders are making upwards of 1300HP with SR/BRX20 degree headed 615/632 engines with a cast intake and a single dominator, it’s clear that not only is there no advantage, but they will make less power and/run slower on the track. | |||
|
| DRR S/Pro |
A tunnel ram with one carb and one that is too small to start with is not a good combo. Use it with two carbs or stay with the SV632. Cam wise you will need .950 to .975 lift on the intake side and .910 to .925 duration @ 50 286/308 to 310 15.5 to 16 compression your carb is on the small 6700 stall converter shift at 7700 and go through at 7700 plus This should give you a good idea what it will take | |||
|
| DRR Top Comp |
So far it has all we are talking about but for whatever reason they built it with a 765 lift camshaft duration I feel is good just no lift. I planned to order a camshaft for it thinking it’s likely the limit of this deal. Thanks for the input David Lanning Lanning Electric Team Mickey Thompson | |||
|
| DRR Top Comp |
Thanks Ed I have experience with sv632 vs tunnel ram on sr20 but they run up high better then I’d think this HH is capable of so not sure if it’d be apples to apples to compare the two. I’ll stick with the sv632 currently. Thanks David Lanning Lanning Electric Team Mickey Thompson | |||
|
DRR Elite |
Great informative thread with tons of shared experience. Man I wish all DRR threads looked more like this. Merry Christmas David, Ed and Top38 2005 2000lb 4 link dragster home brew 582 BBC Dart 355 1.058 2.98 4.629@149 6.094 7.310@185 | |||
|
| Powered by Social Strata | Page 1 2 |
 | Please Wait. Your request is being processed... |
|
 |
 |
 |
 |
