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Author
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Topic: V8 you asked about the Holley HP
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bluestreek
Gearhead Posts: 1460
From: Athens,GA
Registered: Jul 2001
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posted 12-05-2003 01:07 PM
   
The Holley HP series carb is a dedicated race carb. The 4 corner idle circuits and changable air bleeds can be easily tuned for just about any setup but seem to work well out of the box. The advantages that I have seen over the standard 750 and even the Demon is the HP has much better idle quality and maintains better A/F ratio throughout the full rpm range. I'm running 74/84 jets and making around 440 HP at only 6000 rpms. A 200 shot would put me at 640HP!! Your 351 with larger cam should be even more!  ------------------
1966 Mustang Coupe: Custom glass hood and BIG scoop sits atop a 289 stroked to 331 c.i., Steel crank, rods and girdle, TFS alum. heads, Stealth 8020 intake, Xtreme 268 Solid Roller, Holley 750 HP, long tubes, 4speed, 9" 3.50 posi.
11.86 @ 116 mph (7.62 @ 93 mph)daily driver!
DanH
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V-8
Gearhead Posts: 198
From: Turkey/Istanbul
Registered: Dec 2003
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posted 12-05-2003 07:53 PM
hi;
my 750hp carb coming soon by dhl service and i also buy msd super conductor wire set.
what are you thinking about might demon carbs?
what is your comp ratio?
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V-8
Gearhead Posts: 198
From: Turkey/Istanbul
Registered: Dec 2003
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posted 12-05-2003 07:56 PM
750hp carb comes with 74/84 jets?
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V-8
Gearhead Posts: 198
From: Turkey/Istanbul
Registered: Dec 2003
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posted 12-05-2003 08:22 PM
quote:
Originally posted by bluestreek:
making around 440 HP at only 6000 rpms. A 200 shot would put me at 640HP!! Your 351 with larger cam should be even more! [/B]
my old (2002) combination was:541-544 lift,240-246 0.050,110 lsa hyd flat tapped comp cams xtrem,9.3:1 comp ratio gived 370hp 367ft-lbs of torque at the flywheel.rwhp was 320hp dyno tested.
i was runing 13.2s 115mph,0-60mil 4.9 sec with 245/60/14 bfg radials and 4.11gears.car weight was 3333 with me.i dont love slicks!(i was faster than CBR600F honda with 200hp nos+no slicks!have video!) 
NOW:car weight 3444 with me,3.55 gears,245/45/17 kumho radials,10.5:1 comp ratio,608-612,242-248,110lsa comp cams 280r mech roller,i run 12.7s 114mph,0-60mil 5.0s with slip! i test with g-tech2 and it said 410ft-lbs,390RWHP.
maybe i can get some hps with my new hp series carb???
[This message has been edited by V-8 (edited 12-05-2003).]
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V-8
Gearhead Posts: 198
From: Turkey/Istanbul
Registered: Dec 2003
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posted 12-05-2003 08:53 PM
Thanks for info...
[This message has been edited by V-8 (edited 12-05-2003).]
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bluestreek
Gearhead Posts: 1460
From: Athens,GA
Registered: Jul 2001
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posted 12-05-2003 09:09 PM
What intake manifold and carb do you use now? I run 12.40 @ 114 in 1/4 mile on 235/60-15 Firestone tires (no n2o, no stickies)with Holley 750 HP. Only ran 12.70 @ 112 mph with 650 and 750 Speed Demon with same 60' times. I get to do some testing when racing season starts again. I will change the Stealth intake to a Victor Jr and see the difference, then swap the TFS heads to AFR 185 (58cc). It should be interesting. ------------------
1966 Mustang Coupe: Custom glass hood and BIG scoop sits atop a 289 stroked to 331 c.i., Steel crank, rods and girdle, TFS alum. heads, Stealth 8020 intake, Xtreme 268 Solid Roller, Holley 750 HP, long tubes, 4speed, 9" 3.50 posi.
11.86 @ 116 mph (7.62 @ 93 mph)daily driver!
DanH
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V-8
Gearhead Posts: 198
From: Turkey/Istanbul
Registered: Dec 2003
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posted 12-05-2003 09:31 PM
afr 185cc are good for upper rpms.
i have 4150 series 750dp holley and victor jr intake.
what is your max shift point and comp ratio?
in turkey we test our cars at the autobahn.i test it with radials. because of radials incredible slip to 60-70mils.my stall is 2500rpm but i test it in idle 900rpm.i buy bfg drag radials.when i put my carb then test with drag radials and i put it at 2500rpm stall what will happen!
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bluestreek
Gearhead Posts: 1460
From: Athens,GA
Registered: Jul 2001
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posted 12-05-2003 10:14 PM
With Drag radials you should run at least 11.5 seconds @ 120 mph shifting at 6500 rpms.
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V-8
Gearhead Posts: 198
From: Turkey/Istanbul
Registered: Dec 2003
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posted 12-05-2003 10:32 PM
yes.
im thinking 11.5s~ too.
when i put roller cam and 10.5:1cr light weight (445gr) pistons engine turns like crazy and its sound get incredible at full throttel in high rpm. screems
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V-8
Gearhead Posts: 198
From: Turkey/Istanbul
Registered: Dec 2003
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posted 12-05-2003 10:34 PM
bluestreek;
what is your max shift point and comp ratio?
are you using race fuel?im using 92 octan 
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bluestreek
Gearhead Posts: 1460
From: Athens,GA
Registered: Jul 2001
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posted 12-06-2003 02:09 AM
I usually shift it at 6200 with the 268 cam. I use 93 octane (10.2:1). I haven't pushed it very hard for fear I may break into the 11's again. They will make me put a roll bar in the car if that happens. I don't want it in the way and don't want to screw with my new interior. I ride a lot of passengers and family around on special ocassions.  ------------------
1966 Mustang Coupe: Custom glass hood and BIG scoop sits atop a 289 stroked to 331 c.i., Steel crank, rods and girdle, TFS alum. heads, Stealth 8020 intake, Xtreme 268 Solid Roller, Holley 750 HP, long tubes, 4speed, 9" 3.50 posi.
11.86 @ 116 mph (7.62 @ 93 mph)daily driver!
DanH
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V-8
Gearhead Posts: 198
From: Turkey/Istanbul
Registered: Dec 2003
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posted 12-06-2003 08:08 AM
i think tfs tw heads doesnt turn more than 6500rpm without porting?i shift at 6500rpm.
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V-8
Gearhead Posts: 198
From: Turkey/Istanbul
Registered: Dec 2003
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posted 12-06-2003 08:22 AM
can i get some extra hp with my new 750hp series holley carb?old one was 4150 series 750dp holley.[This message has been edited by V-8 (edited 12-06-2003).]
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