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  Looking for new intake for street/strip 351C 4v - Advice please.

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Author Topic:   Looking for new intake for street/strip 351C 4v - Advice please.
Built351c
Journeyman

Posts: 52
From: Big Lake, MN
Registered: Dec 2001

posted 12-25-2001 10:06 PM     Click Here to See the Profile for Built351c     Edit/Delete Message   Reply w/Quote
Looking for something to make more power then my Weiand X-celerator. Thought about a Tunnel Ram, but dont want to have to run duel carbs. Whats out there? Here is the specs on my motor.

The cam was a solid roller Lunati cam with these spec's:
Lift at valve
.650 In. and .650 Ex.

Duration at .050 Tappet lift
260 In. and 268 Ex.

Advertised Duration
293 In. and 307 Ex.

Valve Adjustment
.026 In. and .026 Ex.

108 Lobe separation

351 4v 1970 closed chamber with a mild clean up flowed these numbers.
INTAKE
.100-70cfm
.200-132.8 cfm
.300-192.6 cfm
.400-242.8 cfm
.500-278.4 cfm
.600-293.0 cfm
.700-301.0 cfm
.800-301.0 cfm

EXHAUST
.100-56.6 cfm
.200-103.6 cfm
.300-143.5 cfm
.400-173.9 cfm
.500-195.3 cfm
.600-203.5 cfm
.700-206.6 cfm
.800-208.5 cfm

Rest of the build is as follows:

1970 351c .20 overbore
2- bolt mains studded with ARP Main stud kit
Blueprinted, balanced
Linehone mains
Index block and Torque Hone block with deck plates
Shotpeen and Resize rods and install ARP bolts
Hone Rods for full floating pins
Drill rods for pin oiling
Static and Spin Balance
Prep Crank
Polish & Chamfer crank
Grind Crank .020-.020
File fit Z-Gap Rings
Lunati Custom Light Weight Pistions
Lunati Solid Roller Cam ( Specs in above post)

1970 Closed chamber heads
Hardened Alloy Valve Guides
Hardened Exhaust Seats
Stainless 2.190 Intakes Valves
Stainless 1.750 Exhaust Valves
11/32 Full Bronze valve guides
.030 Hardened Lunati shims
11/32x.500 Postive teflon valve seals
Vasco Jet Roller springs
Lunati Titanium Retainers
Lunati Spring cups
Lunati Machined 10 degree Locks
ARP Screw in rocker studs
Manley Guide Plates 3/8
Lunati Roller rockers 1.73
Lunati stud poly locks
Lunati pro-series push rods

Carb - Predator carburator 1 inch spacer
Intake - Wieand X-celerator
Headers - Hooker supercomp 1 7/8

Running a C4 with a 4000 Stall.

Thanks for the Advice.

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kid vishus
Gearhead

Posts: 4357
From: middle of NC
Registered: Oct 2000

posted 12-26-2001 06:30 AM     Click Here to See the Profile for kid vishus   Click Here to Email kid vishus     Edit/Delete Message   Reply w/Quote
A Torker is not a bad intake, it would work good on that combination. A Strip Dominator would make more power (thats what I use). I have never messed with a Blue Thunder so I cant honestly comment on it. After those intakes, they start to get pricey.

Also, my opinion on this might not make you happy, but I would ditch the predator carb. My feeling is, if they made more power, more guys would run them at the strip. But now days, you rarely ever see anyone running one. I would buy a 950HP for the motor.

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Built351c
Journeyman

Posts: 52
From: Big Lake, MN
Registered: Dec 2001

posted 12-26-2001 09:52 PM     Click Here to See the Profile for Built351c     Edit/Delete Message   Reply w/Quote
On the dyno my Predator beat a Holley 750dp. I wish I would of had a larger holley to play with, but that was all the dyno shop had. The Torker looks like a nice intake, but I had my X-celerator ported and matched to the heads. I was looking at the FunnelWeb intakes, but I have not found anyone jumping for joy with these intakes yet. I have read on other posts that there are some newer intakes for the 351C, but no posts on how they work on the car. Incase you were wondering the Predator beat the holley 750dp by 25hp and 15lb torque threw the rpm range. The reason I think you dont see to many of them out there is because they are not that easy to set up sometimes and when they mess up there is no one around to help you with it. I have had my predator carb now for six years and finding help with it is just about never. Every shop I talk to about it tries to sell me a holley carb. I think your suggestion about the 950HP is a very good suggestion since the predator only goes up to 930cfm's. However my luck with my last few holleys were not that good and after working with the predator for so long I have come to get to know how to get them working pretty good. This summer I am going to test my Predator against my brothers 850 Demon carb and my buddys tricked out 850 Holley DP. If any of them beat my predator then I will be looking for a new carb. By the way how is that action intake you got for your 2v headed 351C working for you.

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SteveLaRiviere
Administrator

Posts: 32961
From: Saco, Maine
Registered: May 99

posted 12-26-2001 10:00 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
You know Holley is supposed to be re-issuing the Strip Dominator manifold soon, right?

It was supposed to be available this month.

------------------

'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L DOHC

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Built351c
Journeyman

Posts: 52
From: Big Lake, MN
Registered: Dec 2001

posted 12-26-2001 10:16 PM     Click Here to See the Profile for Built351c     Edit/Delete Message   Reply w/Quote
I would buy one of them if they come out again. Thanks for the info.

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Clevo377
Gearhead

Posts: 312
From: Blackburn, Victoria, Australia
Registered: Nov 2000

posted 12-27-2001 12:09 AM     Click Here to See the Profile for Clevo377   Click Here to Email Clevo377     Edit/Delete Message   Reply w/Quote
You can buy my funnelweb for US$200.00 (you'll need to organise shipping)

Paul

[This message has been edited by Clevo377 (edited 12-27-2001).]

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Daniel Jones
Gearhead

Posts: 489
From: St. Louis, MO
Registered: Aug 99

posted 12-27-2001 10:44 AM     Click Here to See the Profile for Daniel Jones   Click Here to Email Daniel Jones     Edit/Delete Message   Reply w/Quote
A friend of mine tested the Strip tor, Blue Thunder and Torker on his 377C stroker. The results pretty much mirrored the old Super Ford 351C test: Strip tor was best followed by the Blue Thunder and then the Torker. I wouldn't expect the Xcelerator 4V to be much different than the Torker.

The Australian intakes (Parker Funnel Web, TFC, and Active) all appear to have smaller than 4V ports and the Parker and TFC are meant to be used with their intake port stuffers.

Another route would be to use an intake meant for the Cleveland based SVO aluminum high port heads. These will have smaller than 4V ports but should flow well. The only high port intake still in production is the Ebelbrock Victor AH-II which sold for a little over $300 last time I checked. You can still find used high port intakes in the $300 to $400 range. There were several different s manufactured by Roush and Edelbrock for Ford Motorsport. You can see pictures of a few s at http://www.panteraplace.com/page35.htm

Dan Jones

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Moneymaker
Administrator

Posts: 19686
From: Lyons, IL, USA
Registered: May 99

posted 12-27-2001 11:52 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
I am looking into the Holley delivery date next week. Our connection, the former racing director Tom Jenkins left Holley last week so I do not have the access to information that we used to. I'll see what I can find out about the Strip Dominator.

------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link

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SG236
Gearhead

Posts: 359
From: Jasper, TN, USA
Registered: Dec 2000

posted 12-27-2001 01:19 PM     Click Here to See the Profile for SG236   Click Here to Email SG236     Edit/Delete Message   Reply w/Quote
I would go with the strip dominator. I have one if your interested. Email me at [email protected]

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Clevo377
Gearhead

Posts: 312
From: Blackburn, Victoria, Australia
Registered: Nov 2000

posted 12-27-2001 05:07 PM     Click Here to See the Profile for Clevo377   Click Here to Email Clevo377     Edit/Delete Message   Reply w/Quote
Go with the Strip dominator, either the new release, or the older one. It is the best option if you dont want to have to fiddle around too much with matching up ports.

Paul

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kid vishus
Gearhead

Posts: 4357
From: middle of NC
Registered: Oct 2000

posted 12-27-2001 08:18 PM     Click Here to See the Profile for kid vishus   Click Here to Email kid vishus     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Built351c:
By the way how is that action intake you got for your 2v headed 351C working for you.

I didnt get to run it much. The 2v headed motor I was using it on blew up on the 7th or 8th pass. The motor was a 10.5-1 compression motor with that same roller grind you are using, 2v heads I ported, the Active intake and my 4v super comp headers. It was running 10.40's before the head came off an intake valve and ruined the block and one cylinder head. The previous year, the same motor with a offey single plane intake and a solid cam was running 10.80's. I might try it on my 4v motor next year just to see how much difference there is.

When I was using a 750DP on my motor years ago, we changed it at the track for a 950HP. The car picked up .3 in the 1/8. So thats not too hard for me to beleive that your predator made more power than a holley 750.

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Moneymaker
Administrator

Posts: 19686
From: Lyons, IL, USA
Registered: May 99

posted 12-28-2001 12:58 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote

------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link

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Mpcoluv
Gearhead

Posts: 928
From: Charlotte NC usa
Registered: Apr 2001

posted 12-30-2001 10:20 AM     Click Here to See the Profile for Mpcoluv   Click Here to Email Mpcoluv     Edit/Delete Message   Reply w/Quote
I am using a Strip Dominator (well Dan Jones Strip Dominator)in my street oriented 372C with a predator and a 1" spacer. I have much less cam than you. The carb works well on the street from what little I have driven it.
The Holley intake works very well.
BTW I think the predator makes more lowend because it does not rely on intake pulses (that are dampened by the huge intake tract volume) but on airflow. Also predator will rebuild your carb for $60 plus a kit. This is what I did, and they test run it on a 377 SBC. I only adjusted the idle speed, and it ran perfectly. The SBC must be pretty close to my 372C. It is not hard to adjust however, just nothing like a holley. The Predator manual is not the best in the tuning department also.

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Built351c
Journeyman

Posts: 52
From: Big Lake, MN
Registered: Dec 2001

posted 12-30-2001 09:45 PM     Click Here to See the Profile for Built351c     Edit/Delete Message   Reply w/Quote
Have you checked out the online manuel for predator. Some very helpfull tips in there and the bulletin board. http://www.predatorcarb.com/

Mark G. knows his Predators on the Board. He has helped many people with the carb.

[This message has been edited by Built351c (edited 12-30-2001).]

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