I'm curious who out of our group of merry F-Typers has the meanest S. What mods have you done and what are current HP #s and new 0-60s ?? Looking to add some power soon.

 

Probably Lance

 

Unless the bhp is measured on the same load-bearing dyno, "king of the road" claims are questionable. Even track times are mere indicators unless executed on the same track under similar ambient conditions.


I would personally have to concede that a car running 40 horses less than mine with an AT would show better track times.

 

I'm not looking for scientific evidence. More so, honor system-based claims. I want ballpark ideas for what I may expect when applying each mod. After all, I don't expect guys on here to lie about their numbers

 

60.5mm upper pulley (62mm OEM)
170 mm lower pulley (152mm OEM)
VAP tune
383.25 bhp

 

I do. White is the fastest color. jk.

I think Unhinged has the fastest V6 here based on HP. I think his only handicap is lackluster factory clutch.

 

Jag totally resolved that issue. My handicap is a shift speed of gerontologic proportions and a lack of 2 gears ratios.

 

Yeah probably Unhingd. I have an automatic V6 S with Velocity AP converters, tune, and resonator delete. I want to have mine dynoed to see where i'm at. Next step is a lower pulley swap and headers(one they become available).

 

I'm more curious to see how much capacity is left on the clutch with the power you're pushing.

 

I personally think that tuning for peak is pointless. At least when driving a manual car it is a lot more important to have wider power band, and have it match to shift points. That is, if I am going from 3d gear at 6500RPM into 4th gear at 4500RPM, it is very important to have power between 4K and 6K.

Absurd example* - you can tune to produce 1000 HPs at 6500RPM but only 100HP at 4000RPM, I will beat your "1000HP car" with an equally weighted car that only produces 200HP but evenly spread across the RPM range. Sure, you will have higher top speed, but will you ever get there before the race ends?

I think one of the major downsides of V6 used by F-type is narrow power band. Coming to F-type from Mercedes M113 engine equipped car it is Very noticeable.

*Note: I should be speaking about torque, but most people won't get it and would not intuitively know what good values are. So HPs were used in my example to illustrate the point.

 

I don't think the lack of gears has a huge effect. 7th and 8th are mostly for economies sake, as the 8 speed hits claimed top speed in 6th gear.

To defend all of us unituitve people on this forum, the OP did ask who was the fastest and not whom has the most peak horsepower. Granted peak horsepower may have been mentioned, but so was 0-60 time. It's hard to quantify area under the curve, but peak horsepower is an easy benchmark among identical engines.

 

Absolutely no issues at 370 lb-ft of torque.

 

You are absolutely correct. If I were tuning for peak power , I would not have opted for a +18mm lower pulley, but something smaller to retain the SC efficiency @ 6800rpm. TQ is king for road track performance (and MTs)

 

Sinf my V6 feels strong throughout the rpms but it could just be me. I'm sure the R feels like a monster everywhere.

Has anyone with a V6 taken theres to the drag strip yet? My 2 goals for this coming fall is to get my dynoed and taken to the drag strip. I think my V6 S is suppose to do the quarter mile around 12.9-13.00. It will be interesting to see how much the mods help on the strip.

 

I don't think it's lack of gears, per se, but 1-6 in the ZF A8 has ratios more conducive to faster acceleration than the ZF 6MT. That's not even counting the clutch integrity issue and the fact that the computer will shift faster than the fastest human.

I think Lance is probably right. We had committed to a drag race this summer--my base auto vs. his S MT, but then he mega-tuned, followed closely by me trading my car. However, I'd be happy to still have that drag race in my current car. :-)

 

I think JLR engineers should have geared third and fourth more aggressively on MT. As it stands, it is hard to go WOT without sliding in the first gear, but at the same time third and forth gears are underwhelming until you get into high RPMs. So this car harshly punishes you for shifting early or finding yourself in a turn out of optimal gear. Smoothing out torque curve and bringing some of it down to 3500 RPM would make it a lot more drivable.

 

You spot me 2-3 seconds in the quarter, I'd consider it. lol

 

I think the real reason Foosh sold was to avoid having to race you.

 

LOL . . . I was actually looking forward to it. I thought (perhaps foolishly) I actually had a chance because the V6 auto launches so nicely by going straight to the floor w/ the pedal.

Moreover, we now have about the same power and both manuals, but I'm a natural air breather. I have perhaps a little more HP now and a lot more torque (460/460), but I don't see why he wants me to spot him 2-3 seconds. Never mind that I now weigh about 400 lbs. less than he does.

 

I'm pretty sure Lance (Unhingd) is the answer.

OP - Drop us a line I'd be happy to help you go faster