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Re: realistic et goal for a 78 400
[Re: MPerry]
#1367620
01/10/13 07:39 PM
01/10/13 07:39 PM
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Joined: Jun 2006
Posts: 5,186
CT
GTX MATT
master
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master
Joined: Jun 2006
Posts: 5,186
CT
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I don't think its unrealistic, the rest of the car is set up right. I'm not sure the .528 will get you there easily, but it should get you there. It may take a big of tuning. Its a good cam, but not a big top end screamer type. It'll be a nice street/strip setup though. A 509 would probably get you there a little easier, but I'd try the .528 since you have it. 12.50s is probably what I would expect from that. You should certainly be in the 12s, it really just depends on how sharp you tune it and how tired the 400 is.
EDIT I see you don't have a cam. I'd run a DC509 (old one with 108 LSA, in at 102 or 104 ICL), run either the 452s or the 516s. I'd run the 452s, have them milled as much as you can. If you want give them a shot at home porting. I think it'll run strong though, the car is set up well with that converter and gearing.
Last edited by GTX MATT; 01/10/13 07:41 PM.
Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street
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Re: realistic et goal for a 78 400
[Re: GTX MATT]
#1367621
01/10/13 07:42 PM
01/10/13 07:42 PM
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Joined: Jan 2003
Posts: 11,657
Fitchburg,Massachusetts
MPerry
OP
Mopahts memba'
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OP
Mopahts memba'
Joined: Jan 2003
Posts: 11,657
Fitchburg,Massachusetts
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I think I have a .509 sitting in the 400 right now. I had it briefly in my 413.
The 452 are milled already.
Last edited by MPerry; 01/10/13 07:43 PM.
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Re: realistic et goal for a 78 400
[Re: Mopar-Al]
#1367625
01/10/13 08:46 PM
01/10/13 08:46 PM
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Joined: Nov 2009
Posts: 2,275
Desert Tracker
HYPER8oSoNic
top fuel
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top fuel
Joined: Nov 2009
Posts: 2,275
Desert Tracker
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Quote:
Seems like even with low comp, You should be able to squeeze 400 hp out of it with some good machine work. That may get you into the low 12 to mid 12's
 12.50 et or less is real. 400-425 hp is about right. 452's are a little easier to work with to gain power (bigger valves, some pocket work). since you have them milled, you may go up in the comp ratio, but not by much. Excellent point from the other members is to get a cam, matched to your specs and advance in the intake centerline a bit more to raise cylinder pressure. Check piston /valve clearances though. However, work the chassis to transfer the weight better and to HOOK
WELL. Basic stuff - front end rise/alignment, frame rigidity, solid crossmembers and sub-connectors and by all means proper rear shock travel. You can have power, but without a solid foundation to transfer it from the frame thru the rear wheels and, finally to the ground - it's pointless!! Food for thought. 
By the way, do you have a TQ or a Holley sitting up top?
Last edited by HYPER8oSoNic; 01/10/13 08:55 PM.
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Re: realistic et goal for a 78 400
[Re: MPerry]
#1367627
01/10/13 08:59 PM
01/10/13 08:59 PM
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Joined: Nov 2009
Posts: 2,275
Desert Tracker
HYPER8oSoNic
top fuel
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top fuel
Joined: Nov 2009
Posts: 2,275
Desert Tracker
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Either the 850 (jetted/w proper squirters), the 800 TQ (tuned, w/adjusted secy air door), or even a performance tuned 750 EDDY will do the job.
Last edited by HYPER8oSoNic; 01/10/13 09:02 PM.
"Stupidity is Ignorance on Steroids"
"Yeah, it's hopped to over 160" (quote by Kowalski in the movie Vanishing Point 1970 - Cupid Productions)
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