408W vs. 306 turbo? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 19 Old 09-02-2012, 11:57 AM Thread Starter
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408W vs. 306 turbo?

Been thinking about going NA with a 408w instead of my 306 H/C/I single turbo setup. Car is full street trim 93' gt with a 5 speed that goes to the track couple times a year. Never went with a 351, just 302/347 combos. 408 would have afr205's, 10:1 comp, trick flow r intake and custom roller street cam. With driving it on the street daily, I would think the torque of the 408w would be fun. Just curious if anyone thinks it would be worth swapping it over. Not looking to compare peak hp, just fun factor on the street. Thanks

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post #2 of 19 Old 09-02-2012, 12:45 PM
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N/A combos are fun. Brutal, unrefined power at a tap of the pedal. But I've been getting old for 10 years. The cam gets old daily along with the gearing to make the combo work. Quiet and a big god damn stick is why I don't do anything else other than turbo anymore.

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post #3 of 19 Old 09-02-2012, 12:49 PM
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H/C/I 306 will be cheaper, be more streetable, and probably make more power

1987 Saleen clone: 358cid, FoxLake Vic Jr's, Victor 5.0, YSi, etc, etc, etc
809rwhp on pump gas + meth injection
"Just turn the boost up.....it's only air."
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post #4 of 19 Old 09-02-2012, 02:10 PM Thread Starter
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I'm definitely not as young as I used to be and for some reason I always forget about how some of the stroker cams get a little old driving everyday. I think I will stick with the turbo setup and maybe just upgrade the block to get more power if needed. Thanks for your opinions.
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post #5 of 19 Old 09-03-2012, 02:36 AM
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I would skip the 302 and go with the 408 like you stated, but I would drop the comp down some more. That way when you get the need for more power later on( and you will). You'll be able to just bolt on boost.
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post #6 of 19 Old 09-03-2012, 12:14 PM
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I have a buddy with an N/A 427 stroker '94 Cobra and I have a turbo 302 Fox. Performance wise, they are very close at the track. Here's the main differences I've noticed driving the two back to back. His car is much more fun on the street. It has instant torque and makes awesome sounds. However, the huge cam and loud exhaust wear on you. Especially compared to my car. Mine drives like a stock Fox, until the boost hits. It's quiet and very stealthy. There's no hiding the 427. If it's not your DD, you may be happier with a bigger N/A motor. If it's your DD, go turbo.

1989 5.0 T5 LX Hatch - Explorer Short Block with an FMS F-303 cam, TFS TW170 heads, Tmoss Ported Cobra Intake, an On3 Turbo Kit with a 67mm Ceramic Ball Bearing Turbo, and backed by a T56 Magnum 6spd with 3.55's
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post #7 of 19 Old 09-03-2012, 12:30 PM
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Your cam will dictate how well the street manners are. My 408 drives excellent and I can lug it down to 1500 rpms with no bucking at all. It has 10.1 compression and makes 479hp/503tq to the ground. I'm happy with it.

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post #8 of 19 Old 09-03-2012, 01:02 PM
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Your cam will dictate how well the street manners are. My 408 drives excellent and I can lug it down to 1500 rpms with no bucking at all. It has 10.1 compression and makes 479hp/503tq to the ground. I'm happy with it.
Yup..an aluminum headed 408 can make great street power,get decent mileage & weigh about the same as a 302 combo(when you add in the weight of a S/C or Turbo). Cam/compression choice/final gearing choices dictate the liveability of it. An aluminum headed 408(mild cam/compression) with a 150 shot of gas on it will give all but the wildest 347/turbo or S/C cars a run for their money:leghump.Gas mileage goes to the power-adder 302 combo though.. Sleepr71
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post #9 of 19 Old 09-04-2012, 01:59 PM
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Yup..an aluminum headed 408 can make great street power,get decent mileage & weigh about the same as a 302 combo(when you add in the weight of a S/C or Turbo). Cam/compression choice/final gearing choices dictate the liveability of it. An aluminum headed 408(mild cam/compression) with a 150 shot of gas on it will give all but the wildest 347/turbo or S/C cars a run for their money:leghump.Gas mileage goes to the power-adder 302 combo though.. Sleepr71
there are not many mild 408W on 150 shot that will hang with a 700+RW turbo car...I have two friends plus myself who are over 800RW with very streetable blown combos...a 408W on a 150 would need over 600RW on motor alone...that better be a stout windsor..cause it's getting walked hard by a widly blown combo ...

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post #10 of 19 Old 09-04-2012, 05:50 PM
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Your cam will dictate how well the street manners are. My 408 drives excellent and I can lug it down to 1500 rpms with no bucking at all. It has 10.1 compression and makes 479hp/503tq to the ground. I'm happy with it.

I've had both and no way I would trade my turbo combo for a 9.5" N/A combo.


I'm not trying to down your combo in any way, it makes good power, but my stock bottom end car with a stock cam and all the driveability that goes with it, makes 50 more RWHP than your 408.

Until you get into boost you can not tell my car from a stone stock 95 GT by the way it drives.


1987 Saleen clone: 358cid, FoxLake Vic Jr's, Victor 5.0, YSi, etc, etc, etc
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"Just turn the boost up.....it's only air."
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post #11 of 19 Old 09-04-2012, 06:17 PM
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While I miss the cammed idle there's no way I'd go back to n/a on any car in my future. Boost is addicting and sometimes frustrating as hell.....but in the end forced induction wins especially turbo setups.

-2003 Cobra, Built bottom end, ported heads, Hellion single T76, Built t56, Mcleod RXT, Built SRA. 706rwhp/761rwtq on 18lbs.
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post #12 of 19 Old 09-04-2012, 10:03 PM
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I've had both and no way I would trade my turbo combo for a 9.5" N/A combo.


I'm not trying to down your combo in any way, it makes good power, but my stock bottom end car with a stock cam and all the driveability that goes with it, makes 50 more RWHP than your 408.

Until you get into boost you can not tell my car from a stone stock 95 GT by the way it drives.
I agree, boost is great. However I wanted a low maintenance combo that wouldn't give me headaches and made good power. Turbos can and will nickel and dime you to death. I just didn't want to deal with it.

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post #13 of 19 Old 09-04-2012, 10:11 PM
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[QUOTE=sradtodrag;11105272]I agree, boost is great. However I wanted a low maintenance combo that wouldn't give me headaches and made good power. Turbos can and will nickel and dime you to death. I just didn't want to deal with it.[/QUOTE


I agree with you there, they can nickel and time you to death if you're not careful.


And all motor is definitely simple.


I kinda miss my big motor when it comes to simplicity, or when you want to be seen/heard pulling into the cruise night........but only a little.

1987 Saleen clone: 358cid, FoxLake Vic Jr's, Victor 5.0, YSi, etc, etc, etc
809rwhp on pump gas + meth injection
"Just turn the boost up.....it's only air."
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post #14 of 19 Old 09-06-2012, 01:54 PM
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I say 408 with a turbo

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post #15 of 19 Old 09-06-2012, 02:07 PM
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i second 408 with a turbo

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Tremec 3550 trans/ 327 gears/ aeromotive fuel system/turbo 78/75 from vs racing Oct 2014)/ on3 hotside. Tuned with MSPNP Gen2 by Speedy Dyno MP76 601rwhp/580tq 12lbs/12*( new numbers S480 740rwhp/620tq. 16lb/16* )
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post #16 of 19 Old 09-06-2012, 02:13 PM
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i second 408 with a turbo

Third it!!!!

'18 Charger Hellcat
95 Cobra - Comp Billet PT8047 DIY Turbo and 340CI A4 Car
Palm Beach Dyno tuned - juuuuuuuust a little over 385RWHP....
RIP - Jerry"BabyLove" Glover ....1952 to 2012...
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post #17 of 19 Old 09-06-2012, 11:38 PM
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76mm Twin Turbo 408 setup and destroy all in your path
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post #18 of 19 Old 09-09-2012, 11:34 AM
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add a turbo with the 306 or add the turbo with a 408
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post #19 of 19 Old 09-10-2012, 08:43 PM
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turbo 408
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