302 bored and stroked to 347. Aluminum heads, hyd roller cam, Holley 750 double pumper.
Dyno'ed @ 425HP, 430 Lbs Ft at 5000RPM.
My initial impression after go-karting last week, is that that power level is a bit of overkill. A light goose of the throttle and it lights up the tires. Shift to 2nd....same thing. The car is so light, you don't need much power to make it go plenty fast.
By the way, that's with 315/35/17 Nitto NT05 tires and a 3.27 axle.
5.0 L Ford Coyote Crate engine. Published 412hp/ 390 ft lbs. Maybe slightly less due to the shorty headers installed. TKO 600 with .64 overdrive, 3.55 rear with Torsen. Like Racerboy, I just did my go karting. There are now mysterious black marks on the new pavement in the neighbourhood. ( my 24 year old son says I am such a child.)
The acceleration is brutal. Feathering the throttle is a required skill.
nice those are nice set ups!!!!! i have only babied mine around the block then sent it to paint... never went more then 1/4 throttle. need to finish the tune with hp tuners...
03 Mach1 motor, e-water pump, cams, stacks, MS3 EFI and ONLY driving an alternator. TR3650 and 4.30 gears.
My goal is a VERY attainable 350 RWHP and 370 RWTQ. It should be peppy with that gear ratio. I've run nearly the same combo in an 04 Mach1 and it didn't change my fuel economy. That car ran 12.73@108 without any internal engine mods using drag radials.
'07 4.6L 3V with 2.3L Whipple. Probably about 525HP at the flywheel. TR3650 trans and 3.31 Moser rear end. M/T 305/35R18 rears. Car weighs 2415 lbs without me, 2600 with me. Best 1/4 Mile 11.399 @ 120MPH with a slow launch (can't plant all that power with this car, 1.8 sec 60').
Made several changes over the winter (injectors, cal, pulley, ...) and would love to break into the 10s on the 1/4 mile, but that might be impossible (for me) with this suspension / tire setup.
Used 302 CI pushrod engine with new Al heads, E303 cam, bigger throttle body, 24# injectors and Ford GT intake. With a reprogrammed chip, it dyno'd at 300Hp and 300 lbs/Ft of torque. Big flat torque profile. Power is transmitted through a Tremec 5 speed with the 0.68 overdrive and 3.55:1 rear gears.
This is a useable amount of power and torque for this car. My Challenge Series car had far less and was quick in a straight line and handled well. The #007 '33 weighs about the same, has a longer wheelbase and more power/torque. At around 7.5lbs/Hp, it's quicker than most everything one sees on the Street. It kept up quite well on the Straight sections of Road America's track a couple of weeks ago with Northwoods Shelby Club. It outperformed many cars in the twistier sections of the track - even on street tires.
Best regards,
__________________
Tom #007 Street Rod; #2911SP Challenge Racer (Sold, 06/2010) V.I.R.U.S. (Very Immature Racers of the United States)
I wish my numbers were 300ish from a reliable 302 with stacks. It would be a great match for the car and would have been much easier to get running. Maybe next time. There is something to be said for simplicity.
SBF 302 with probably around 300/300 with a T5. Basic! Looking at doing some aluminum heads but not sure I need it. It breaks loose pretty easy at the track even in second gear.
I'm running a 408w motor with AFR 185 heads. Dual quads on top, dyno'ed at 512hp with
565 lb ft torque. Haven't installed it yet so I haven't go-karted, but it should be blisteringly
fast
I'm running a 408w motor with AFR 185 heads. Dual quads on top, dyno'ed at 512hp with
565 lb ft torque. Haven't installed it yet so I haven't go-karted, but it should be blisteringly
fast
Neal
nice roadhog! those are good numbers!!!! how much do you guys think we loose going to the wheels?
'07 4.6L 3V with 2.3L Whipple. Probably about 525HP at the flywheel. TR3650 trans and 3.31 Moser rear end. M/T 305/35R18 rears. Car weighs 2415 lbs without me, 2600 with me. Best 1/4 Mile 11.399 @ 120MPH with a slow launch (can't plant all that power with this car, 1.8 sec 60').
Made several changes over the winter (injectors, cal, pulley, ...) and would love to break into the 10s on the 1/4 mile, but that might be impossible (for me) with this suspension / tire setup.
Kerby
i have a stroked 427 small block pushing 565 hp with a tremec tko 600
moser 3.31 gears same problem cant put it all down!!
11.45 best 1/4 mile on a chipseal runway. 2.1 60ft and 131 at the traps
3rd gear is a rush when it hooks up!!!
tires are 345r 30 18 in rear
i have a stroked 427 small block pushing 565 hp with a tremec tko 600
moser 3.31 gears same problem cant put it all down!!
11.45 best 1/4 mile on a chipseal runway. 2.1 60ft and 131 at the traps
3rd gear is a rush when it hooks up!!!
tires are 345r 30 18 in rear
fun fun fun
131 throught the trap! Get that thing to hook and you'll touching the tens... 2.1 sixty foot needs help. How much spinning?
i have a stroked 427 small block pushing 565 hp with a tremec tko 600
moser 3.31 gears same problem cant put it all down!!
11.45 best 1/4 mile on a chipseal runway. 2.1 60ft and 131 at the traps
3rd gear is a rush when it hooks up!!!
tires are 345r 30 18 in rear
OK. I got the least horses. One always has to be the looser.
Just a bone stock 2003 4.6 2V which they say has 265hp. The only mod is a cold air intake. Tranny is the stock 3650 and the rear is also from the very same 2003 Mustang that some hell driver GI rolled down a hill sideways while cruising a German mountain road.
So far only drove a few miles, but think even with just 265hp this thing takes off pretty quickly.
__________________
Kai
Hanau/Germany
54 F100 347CID Stroker SBF Automatic / 65 Galaxie 446CID Stroker FE Big Block 5-Speed / 67 Mustang Convertible 306CID SBF Automatic / 07 Mustang GT Convertible 4.6-3V Automatic / FFR Hot Rod #236 4.6-2V 5-Speed
I am intrigued with Tom V.'s response about 300 HP being an eminently usable amount of power in these light weight 33's.
Having both an LS7 and an LS1/LS6 -- I now believe I'll build the car (initially) with the smaller engine. What's the point in having 500+ HP if you are unable to get the car to "hook up" in 1st, 2nd or 3rd? I definately want a street car to put power to the pavement. Impressing high school kids with clouds of tire smoke, just doesn't do anything for me.
I have a buddy with a 427 CID LSx/4L80E powered '67 Camaro (weighs 3300#'s). With a 3400 RPM stall and 3.90 posi rear gears -- it would "swap lanes" any time you "stood on it" under, say 45 MPH. With 3.55 rear gears , it's somewhat more controlable (but still spins violently). I'm not saying his car is not "street driveable" or that it's not fun. But -- it's extremely hard to drive this car at (or just below) the edge of it's acceleration envelope.
I'm beginning to suspect that many (most?) 33's have been assembled with way more power than could be "put on the ground" (especially block to block).
Does FFR offer any guidelines as to what the "optimal" HP range would be?
I'm beginning to suspect that many (most?) 33's have been assembled with way more power than could be "put on the ground" (especially block to block)
.
I would tend to agree. Just go carting around the neighborhood at speeds less than about 60 the car is a handful even with 315/35 rears. I've got a 347 SBF with Trickflow heads and a 540 lift cam, aluminum flywheel, 650cfm, and 4:10 rear. This old man doesn't want anymore.
A most know, there's so much more to it than max HP and TQ numbers. The whole package is what makes it perform, gearing, transmission, tires and especially WHERE in the RPM band does the engine does it make it's peak performance. I laugh at the HP rating thrown around for new 4 cyl cars. Yea, they will make it - at about 6000 RPM!!!
Take a look at this list, even with a basic crate motor putting out 350 HP and say 2200 pounds, you in good company 318 HP/Ton. Where do you want to be?
I would tend to agree. Just go carting around the neighborhood at speeds less than about 60 the car is a handful even with 315/35 rears. I've got a 347 SBF with Trickflow heads and a 540 lift cam, aluminum flywheel, 650cfm, and 4:10 rear. This old man doesn't want anymore.
I still say it's about priorities in the set-up instead of HP per #
The FF design looks to be mainly for autocross with very stiff springs and 50/50 weight distribution and less than optimal 3and 4 link angles
The car has a low center of gravity but in many cases a horrible instant center which makes it fail to bite. I was trying to start this dialogue on stretched and jacked and I'm still looking for a full fendered car with extra ground clearance to show the traction lost to that type of FF set-up
DB
LS1 5.7L / 347 CI made 350rwhp/360TQ
Car weighs 2260 lbs and running Kumho 315/17, 3.55 8.8 w/torsen
It spins the tires in 1st and 2nd above 3000 rpm but will hook with a slight feathering of the throttle. It hooks well in 3rd. Even once the rear breaks loose the car is still accelerating very hard. On my autocross tires (Hankook 214/C71) the car will hook very well in 1st and 2nd.
An easy way to manage the power is to short shift at the rpm the tires start to break loose in each gear.
__________________
Mike
FFR Coupe #340, 2003 LS1 350 RWHP, TKO 500, QT BH, Champ 10 QT pan, 5 Lug and AC, Cobra Disc, SAI mod, Kumho XS 315's x4 ..Licensed for 28k..Just over 30k w/race tires and many mods http://s464.photobucket.com/albums/rr2/mmarshall01/ http://www.youtube.com/watch?v=uHtx7...1&feature=plcp
Build started - 8 Apr 2008
1st Autocross - 18 Oct. 2009 XP Class
2011 and 2012 St Louis region XP Champion
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