ROUSH on the SPEED channel last night

jocatch · Sep 26, 2009

I watched the hour long program on the SPEED channel called the Art of Performance Engineering. They covered the 2010 Roush Mustang. I thought it was great. Had behind the scenes footage of the design work that went into the 2010 Roush. Talked to Jack himself and a bunch of others. If you missed it check to see if it will be aired again soon in your area.

Joe

whitesqual · Sep 26, 2009

would like to see that, I will have to look see if its coming on again and record it on the ol dvr!

wise_Jonny · Sep 27, 2009

do you think the 2010 ROUSH package is better than the 2010 gt500?

jocatch · Sep 27, 2009

From what I have read and seen on TV, the Roush isn't as good in terms of performance but I would rather have the Roush based on styling, colors (stripes), friendlyness of the company (Roush web site is great, has alot of good info, they try hard to connect to their customers), etc.

Both suppose to be about the same price. But hey, I wouldn't kick either one out of my driveway!

Joe

SR1blackpony · Sep 29, 2009

wise_Jonny said:
do you think the 2010 ROUSH package is better than the 2010 gt500?

Oh yes! With the new performance packages that Roush just came out with, it would be hard to beat Roush. The Hammer 540 or the stage 3 would be the way to go.

wise_Jonny · Sep 30, 2009

did you see when that website "topgear" tested the horsepower of the shelby 2010 gt500? the horsepower was not what they said it was. I agree I rather have the 2010 roush regarding peformance

SR1blackpony · Sep 30, 2009

wise_Jonny said:
did you see when that website "topgear" tested the horsepower of the shelby 2010 gt500? the horsepower was not what they said it was. I agree I rather have the 2010 roush regarding peformance

No, I didn't see the show, but the Roush power isn't what they said it was either. Roush says it is 540hp, but my car dynoed out at 541 at the rear wheel. Roush just released two new models with 540hp.

MadDAWG · Oct 5, 2009

wise_Jonny said:
do you think the 2010 ROUSH package is better than the 2010 gt500?

I went to the Shelby Plant in Vegas last year. Let's just say if I ever hit the lotto I'd by a Roush.

wise_Jonny · Oct 5, 2009

MadDAWG said:
I went to the Shelby Plant in Vegas last year. Let's just say if I ever hit the lotto I'd by a Roush.

Ya I agree. I think roush is def the way to go

jdcleve · Oct 8, 2009

jdcleve--Re Shelby horsepower

I have just viewed the Top Gear video. The Shelby tested was a 500hp, 2009 model. I know because the cobra emblem is on the driver's side of the grill; the '10 has the emblem on the passenger side. It was moved to avoid obstructing the '10's cold air inlet. Anyway, the manufacturer's hp claims are not what they found at the rear wheels and were measured using 93 octane fuel. I can only find 91 in my state. And, when 'tuners' put a supercharger on an engine with an aluminum (Mustang) block, they likely reduce the engine's durability. Why else would the SVT use iron blocks in the 4.6 and 5.4 liter Cobra and Shelby. Side note: The increased displacement from 4.6 to 5.4 liters between my '03 Cobra and my '10 Shelby comes as a result of increasing the stroke; the bore remains the same.

Blu-Steel · Oct 9, 2009

jdcleve said:
...And, when 'tuners' put a supercharger on an engine with an aluminum (Mustang) block, they likely reduce the engine's durability...

That's why ROUSH limits the power on stock blocks to 435HP but for the 540HP TVS charged cars they completely rebuild the bottom end with forged internals so that it can handle that much power. My ROUSH 429R has 435HP, and the tune really makes the most out of the power available at just about any RPM. It's definatly way more responsive than my 07 GT was. Now I'm very tempted to have ROUSH put in a forged block and 540HP supercharger!

The reason I bought the ROUSH was it is actually made by ROUSH (in much the way Shelby did in the old days) and the weight on the nose is a lot less than the Shelby iron block. Ford could have made an aluminum 5.4 L block to handle the power (Chevy does in the Corvette Z06 and ZR1) but it would have required more money in development and they didn't want to spend it. That iron block puts way too much weight on the front end and is a drag on performance. My 435HP ROUSH might not beat one but it is close enough for me...that is until I win the lottery and get a 540HP transplant.

jdcleve · Oct 9, 2009

jdcleve--Supercharging

Of course, when it comes to supercharging, there are also compression ratio factors to be considered in the interest of engine durability. Case in point: My '03's is 8.5:1 with 8 PSI boost; my '10's is 8.4:1 with 8.5 PSI boost. Compare this with a normally aspirated/unboosted engine with a 10:1 compression ratio.

JiggaStyles09 · Oct 9, 2009

i saw that top gear episode too (IIRC) & the shelby had whatever hp was advertised (give or take a few). what top gear didn't mention was the difference between RWhp & hp at the flywheel. rear wheel hp will ALWAYS be at least 10-20% hp less than flywheel hp. as the power goes through the drive-train it is lessened by the time it makes it to the rear wheels. don't take it from me, look it up. i stopped watching top gear b/c of that episode lol.

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