2018 vs 2015-2017 GT (Non-PP)

I have a 2018 GT, brother has a 16. Both are non-PP with 3.55 gears. After driving each other's cars, we have noticed the following:

1) 2018 has reduced throttle response

2) 2018 has longer (taller) gears, his gets to the power band (above 4k) quicker


Can someone who has driven both confirm? Cause he thinks something is wrong with my car and told me to check another one on the lot. Although his revs quicker, I think mine is actually moving faster and this is attributed to the gear ratio changes or something. What I do not understand is why my throttle response feels laggy, maybe Ford detuned it or something?

The 18 MT82 does have longer gears. I haven't driven an 18 yet so I cannot comment on the throttle response.

There's definitely a lag in the throttle at lower RPMs, haven't noticed anything in high rpm though. Your car should be faster though.

BmacIL said:

The 18 MT82 does have longer gears. I haven't driven an 18 yet so I cannot comment on the throttle response.

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Would longer gears explain throttle response as well? Or are they two different things?

BLU2DSKY said:

Would longer gears explain throttle response as well? Or are they two different things?

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Definitely two different things. Response and acceleration are quite different things, although people seem to confuse them often (which is why they buy things like pedalmax).

Kevin08 said:

There's definitely a lag in the throttle at lower RPMs, haven't noticed anything in high rpm though. Your car should be faster though.

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Ye I think despite his feeling quicker, mines is faster. I assume if we did a roll, his would gain a bit on me before mines eventually passed him. I feel like although his RPM moves quicker, my speedometer is moving quicker.

BLU2DSKY said:

Ye I think despite his feeling quicker, mines is faster. I assume if we did a roll, his would gain a bit on me before mines eventually passed him. I feel like although his RPM moves quicker, my speedometer is moving quicker.

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Similar to when I drive a 3.73 car vs mine. It feels quicker but really isn't.

BmacIL said:

Similar to when I drive a 3.73 car vs mine. It feels quicker but really isn't.

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Well drive a 3:73 with your current mods then report back..

What mods has your brother done?

I have a friend with an 18 as well and when I drove his car, I noticed my 16 felt quicker, but I also have the power pack 2 and FP exaust.

One thing for sure, the 16 looks better. That front with the melted cheeks just looks weird.

Melted cheeks? Why I ought-ta.

Sorry. Still a really nice car!

BLU2DSKY said:

Ye I think despite his feeling quicker, mines is faster. I assume if we did a roll, his would gain a bit on me before mines eventually passed him. I feel like although his RPM moves quicker, my speedometer is moving quicker.

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I can assure you, from a dig or a roll he will not pull on you. If he does, there is something wrong with that 18 or, bad driver mod. Every race I have seen at the drag strip shows similar short times and the 18 putting distance on the earlier S550's the whole way down the track unless of course the 18 has the bad driver mod, nothing is worse than the bad driver mod.

Reduced throttle is probably related to stringing out more MPG. I'm sure a tune will remove the lag. Me personally don't understand that but I don't have a manual. In sport mode/track sometimes I feel like the throttle is TOO sensitive.

NoVaGT said:

What mods has your brother done?

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Resonator delete and muffler delete, nothing else I know of power wise.

IPOGT said:

I have a friend with an 18 as well and when I drove his car, I noticed my 16 felt quicker, but I also have the power pack 2 and FP exaust.

One thing for sure, the 16 looks better. That front with the melted cheeks just looks weird.

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Lol I disagree, I think a stock 18 looks wayyyy better than a stock 16 now.

wireeater said:

Reduced throttle is probably related to stringing out more MPG. I'm sure a tune will remove the lag. Me personally don't understand that but I don't have a manual. In sport mode/track sometimes I feel like the throttle is TOO sensitive.

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Ya probably the case. I am going to wait on a ford performance tune, don't wanna screw around with warranty on a 1st year car.

Loki-GT said:

I can assure you, from a dig or a roll he will not pull on you. If he does, there is something wrong with that 18 or, bad driver mod. Every race I have seen at the drag strip shows similar short times and the 18 putting distance on the earlier S550's the whole way down the track unless of course the 18 has the bad driver mod, nothing is worse than the bad driver mod.

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This was just from us driving each other's cars, didn't actually run one vs the other. That makes sense though based on times both cars have gotten at 1/4 mile and 0-60.