Is this combination capaable 650 plus rwhp - Ford Mustang Forums : Corral.net Mustang Forum
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post #1 of 9 Old 06-14-2017, 05:58 PM Thread Starter
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Is this combination capable of 650 plus rwhp

I decided to upgrade in hopes of getting 650 plus rwhp. Basically all im changing is the top end. The combo is as follows.
Dart sportsman 4.030 block with rpm internally balanced forged 3.4 crank and rpm forged 5.4 h beam rods and ross pistons for TFS heads.
9.8 Compression ratio
TFS 205 11R 56 CC comp ported heads
Comp cams 230 241 duration .603 intake .600 exhaust on 113 lsa
Comp ultra pro magnum 1.6 rockers
TFS Box r intake with 90 mm tb
Vortech V2 si supercharger with a2a intercooler.
ID 1000 cc injectors so I can run e85, tuned with a megasquirt PnP. Hoping to make atleast 650 rwhp with a tko 500. Looking to spin it around 6700 rpms. Will it have enough to make the numbers?

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post #2 of 9 Old 06-14-2017, 06:22 PM
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i would think if not it would be close

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post #3 of 9 Old 06-15-2017, 06:16 AM
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Def make more than 650. Should make 500whp with the proper cam NA....

80 coupe, A4 347, Bullet hyd roller, ported 11r 190's, ported Super Vic, HPI e85 carb, Liberty TKO500/4.30
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post #4 of 9 Old 06-16-2017, 12:45 AM
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The blower will be the limiting factor; I doubt it'll reach 500 rwhp n/a - think about it - that's over 1.72 fwhp/ci, in a (relatively) low compression, low rpm motor. I'd expect that combo to peak around 6,400 rpm n/a; the blower will likely give you a little more rpm. I do think that 650 rwhp is possible with that combo, esp through a stick.
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post #5 of 9 Old 06-16-2017, 01:03 AM
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This may sound but I do't think the heads are big enough and the cam sounds small also........
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post #6 of 9 Old 06-16-2017, 08:19 AM
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Originally Posted by AlexLTDLX View Post
The blower will be the limiting factor; I doubt it'll reach 500 rwhp n/a - think about it - that's over 1.72 fwhp/ci, in a (relatively) low compression, low rpm motor. I'd expect that combo to peak around 6,400 rpm n/a; the blower will likely give you a little more rpm. I do think that 650 rwhp is possible with that combo, esp through a stick.
Yea meant to say with proper cam AND more compression NA. Basic engine combo is similar to mine but EFI...

80 coupe, A4 347, Bullet hyd roller, ported 11r 190's, ported Super Vic, HPI e85 carb, Liberty TKO500/4.30
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post #7 of 9 Old 06-16-2017, 08:31 AM
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Those heads are more than big enough; plenty of guys made that sort of power with unported TW 170's. Heck, my heads are smaller (hand ported TW 170s), flow 292 cfm and through a stick I'm certain I'd be well over 650 rwhp at 15 psi.

205 11r heads will support 7,500+ rpm on a 347 without choking.
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post #8 of 9 Old 06-16-2017, 03:43 PM Thread Starter
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I used to have the FAC 170 cc TFS heads on this motor. As you can see, the chamber for one hole had some damage. This project started as fixing a blown intake gasket and then snowballed. Before this upgrade, it had the 170 cc FAC heads, Holley systemax intake with 75 mm TB, 42 lb injectors and for some ungodly reason, a cam from a 1995 cobra.


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post #9 of 9 Old 06-17-2017, 08:20 PM
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Look at my sig I am almost to 650 RWHP and I think you have a better setup. I pulled to 6K

Black 89 GT Hatch Back. 5 Speed 150K miles TrickFlow Heads F303 Cam TrickFlow intake VS-1 Vortech Supercharger MSD 6AL Stock Block Chassis Dyno at Texas Speed and Performance 602HP 627TQ at the wheel.
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