Gains going from TFS 170 vs 205 11R heads??? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 10 Old 04-06-2016, 07:41 PM Thread Starter
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Gains going from TFS 170 vs 205 11R heads???

What are guys typically gaining? I have boost and the old combo made 725 rwhp. I am just curious what is a normal gain. I plan to Dyno in about another week. Thanks in advance!

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post #2 of 10 Old 04-10-2016, 09:13 PM
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I can tell you I gained .6 tenths and 7mph and 51 rwhp and 44 ft-lbs by switching from 170 and track heat intake to 190 11Rs and a systemax


90 lx coupe - too big of heads and too big a cam, 4.10s
10.69 @ 127.8 NA stock bottom end
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post #3 of 10 Old 04-10-2016, 09:45 PM
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I can tell you I gained .6 tenths and 7mph and 51 rwhp and 44 ft-lbs by switching from 170 and track heat intake to 190 11Rs and a systemax
How many passes/miles, Since install? Any broken valve springs?
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post #4 of 10 Old 04-10-2016, 09:55 PM Thread Starter
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That is awesome!!!!

92' lx hatchback.
NEW BEST/NOVI 1500 Dart 347 [email protected] [email protected] TKO600
2010 GT500 517rwhp [email protected] on stock tires.
1992 LX 5.0 GT40P setup.
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post #5 of 10 Old 04-13-2016, 08:41 AM
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well how did it go?

big cox racing
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post #6 of 10 Old 04-25-2016, 09:46 AM
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Would be interesting to hear results!

1993 Teal Cobra #2531 1 of 452, 347, Precision 7675, The entire kitchen sink....maybe 2 kitchen sinks at this point!
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post #7 of 10 Old 04-25-2016, 10:29 AM
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x 3!
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post #8 of 10 Old 04-27-2016, 11:40 PM Thread Starter
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I am dynoing on Saturday.

I took it to the track but couldn't get to the 1/8 traction wise. But went a 1.32 60ft in a full weight LX.

I will post results Saturday.

92' lx hatchback.
NEW BEST/NOVI 1500 Dart 347 [email protected] [email protected] TKO600
2010 GT500 517rwhp [email protected] on stock tires.
1992 LX 5.0 GT40P setup.
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post #9 of 10 Old 05-09-2016, 09:44 AM
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I am dynoing on Saturday.

I will post results Saturday.
Two Saturday's have past since this post. How did it go?

1989 Mustang GT (Sold)
1/8-mile: 6.57 @ 102.67
1/4-mile: 10.40 @ 128.13 (1.37 60')
425 RWHP:
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, TW 205 heads, tmoss TFS Box-R intake,
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AOD,
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8" converter, 4.10's, Team Z Suspension, M/T 26" ET's, full interior, 3,360 lbs race weight. Tuned by Willie at
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post #10 of 10 Old 05-10-2016, 10:43 PM Thread Starter
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The alternator went out and lost fuel pressure. Fuel pressure was 60 and climbing and instantly dropped to under 30lbs. It made 530rwhp. I how to get it out again in a couple of weekends. My work is very busy this time of year so I don't get a lot of car time. I will update as I get info.


92' lx hatchback.
NEW BEST/NOVI 1500 Dart 347 [email protected] [email protected] TKO600
2010 GT500 517rwhp [email protected] on stock tires.
1992 LX 5.0 GT40P setup.
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