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Lauren

Lauren's GT86 100K miles and onwards

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Look forward to seeing what improvements we can make on top of the already impressive peak power Lauren  

Mike the graph on your website. What mods did that car have?

5d0720af937b0ad95d683b1d6eed0b81.jpg

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3 hours ago, Rich said:

The day after mine is booked in at TD. Maybe we'll have to do a comparison at the open day. :)

It'll be interesting to see what you make. Mike has the two previous runs I had on his system, so I will be able to easily compare where hopefully we will make gains. We already know I've got a strong engine as it's made more power than other cars that have been remapped even without a remap, so I'm dead interested to see if there's much more to come. I shall know soon! 

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Probably next year before I do anything engine related as fiddling with wheels and suspension this year, but I have my eye on one of their manifolds and a remap to go with it...

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21 hours ago, Lauren said:

It'll be interesting to see what you make. Mike has the two previous runs I had on his system, so I will be able to easily compare where hopefully we will make gains. We already know I've got a strong engine as it's made more power than other cars that have been remapped even without a remap, so I'm dead interested to see if there's much more to come. I shall know soon! 

I reckon you'll be giving this a run for its money:

 

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Okay, remap done and I have only driven it home, so only a few chances to redline it as such. 

Here's the graphs:

Today my car only managed 193bhp which is odd, as it's managed a consistent 201bhp before on two previous runs. Remapping saw it climb to 207bhp. So a bit more, but obviously not a huge amount. You can see from the graphs there is an overall improvement throughout which is mostly defined in the mid range. That's useful for picking up at motorway speeds of course where you notice it most. In terms of performance gains at the top end, well, I can't really tell any difference.

One thing I will say, is that the throttle response is mega sharp. In fact going back to a standard throttle response makes the car feel madly lethargic with the initial dead spot no doubt amplified by the now super sharp throttle. I had to get Mark to drive the car with the stock throttle in Map 3 to tell me it feels like it always did! 

This is the before and after today:

25935273895_b05f6edeba_c.jpgRemap 20 March 2016 by Lauren Blighton, on Flickr

This is the before (based on previous runs I've done) and today:

25909428256_2f4f9afce9_c.jpgRemap 2 by Lauren Blighton, on Flickr

Here's what my four maps do:

Map 1 full power increased throttle response

Map 2 Full power, flat foot shifting and launch control, increased throttle response

Map 3 Full power, flat foot shifting, launch control less throttle response

Map 4 95 RON less throttle response. 

Overall the main thing you notice is the throttle response. The car is producing a bit more everywhere but not enough to really notice the difference, apart from the torque in the mid range increasing. 

But I suppose I have to realise that I've got a few mods already and compared to what most stock cars make it is then a reasonable increase when you put it all together. 

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So many variables on dynos getting the same bhp on two separate days is just pure coincidence.

It's best just to concentrate on what you gained on the day. I'd expect no more than what you gained on an NA tune. They don't make loads of power, I'd view it as making the car use the mods to their best effect and transforming the car to the best it can be with the given parts.

The extras like launch etc are just a nice bonus.

So the million dollar question.

Is it worth the cost as this would be my next step.

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I think you have to be somewhat realistic with remaps on NA cars. I guess another way to look at it, is that compare my car to a stock car which would see no more than 190bhp and likely around 185bhp at the flywheel, I've got considerably more and corresponding torque as well. As you say it's about making the best of the mods you've got. I suspect that my Injen Induction kit had the effect of leaning the fuel out a bit, which helped my car make the power it did without a remap. 

However, driving the car now is like night and day to what it was. This is mostly down to the increase in throttle response, which is frankly astonishing. When I selected map 3 with full power and stock throttle, I honestly thought it was broken! I took the car out with Mark driving with it in map 3 just for him to confirm that it felt like it always does in regard to the throttle. As you can see from the graph, the biggest gain is mid-range torque and I can feel that. It's obviously harder to feel the smaller gains elsewhere. I need to assess the throttle response at higher revs, though I did fly the famous M56/Manchester airport exit, properly giving it some at high revs and it did feel very responsive indeed. These are fast 4th gear long sweeping bends where you can really push the car. 

The answer to your question, is give me more time to evaluate it, as I've not driven a huge amount of miles since getting it back. But I think probably for the increase in throttle response alone, it's worth it. 

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What is notable on your car Lauren is that you haven't got such a hole in the torque as most graphs on stock cars (either before or after) so presumably that's your other mods at work...

The combined effect seems to be that you have a useful power band from 4K up whereas mine really doesn't do much until nearly 5k. It's fine given the gear spacing but you do have to redline in every gear to keep the engine on the boil..

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Yes, I have noticed that I can floor 2nd gear a little earlier than I would normally, so it's actually quite a big help in that situation. I will post more observations as they unfold. The trouble is, this week may well mostly be 2 miles to work and back everyday! 

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2 hours ago, Foulsmell said:

So the million dollar question.

Is it worth the cost as this would be my next step.

I think it's probably the best mod I've done purely from a driveability perspective.

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I think I've learnt something here. It's the first time I've had a car remapped. I think the headline figures do not tell the story. The increase in mid-range torque means you can use any gear over a longer rev range and actually that's pretty useful. Gaining something pretty much everywhere also does no harm either. When I think about it and I need to try it a bit more, actually the throttle response being so much sharper at higher revs, really helps. I noticed that when I had to slow the car down to about 4500rpm in fourth on the entry to a corner, meant I could get back into the meat of the power band more quickly. My exit speed was a bit silly to be fair, but you have to try these things! 

I reckon it'll make a big difference on the road. We shall see. :)

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My only experience (on a completely different car) was similar. Not vastly more powerful, just 'better'. Everywhere. To the extent that a standard car just felt a bit rubbish.

I think that's the sign of a decent job. Not about chasing dyno figures...

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Glad you are seeing the benefits of a remap and glad you've started to see the benefits of the mid range like many of us mentioned before

Also, your drop in bhp could prove that my last remap didn't lose me power, perhaps it was just the reading of that day that varied like yours did today.

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What mods do you have Lauren? I could swear you had the same as me (secondary decat, intake and cat back) yet mine made around 5% more peak power and torque, and we started at the same baseline (166.7 for you and 166.6 at the for me, at the wheels of course). 

However, that doesn't mean much anyway.

To follow up on what Lauren said though, I would 100% say the remap is worth it. The dyno really can't quantify how much better the car becomes. You get more everywhere, and while the quantity isn't much, spread from idle to redline it really transforms the car. The torque dip, even without a manifold, is much less obvious, the throttle response (as Lauren mentioned) is hugely improved, so much so that heel-toeing almost needs to be relearned so you don't over-rev on downshifts. 

If you already have supporting mods to go along with it (exhaust, intake or manifold, or any combination) then it's really great.

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Yes, Keith, I am wrong. I admit I am wrong. I suppose I just really got used to how it was and adapted my driving to suit. Now I'm adapting my driving to not having these issues which really were worse than I thought. 

I don't know about that 193bhp run, Keith. I got 201 on both occasions with 60,000 miles driven inbetween sort of says otherwise. 

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Ross, I think I have pretty much the same as you. 

Injen Induction kit

Milltek over pipe 

Milltek second cat decat pipe

Milltek non-res system. 

Yes, totally agree so far, Ross. I really need to pile on some miles by next Sunday to give a full appraisal. I'm doing a 'Lauren Triangle' on the Saturday, so that'll help I think. :)

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I'm doing it late morning. I'm not sure if anyone is out for a meal/curry I'm guessing on the Saturday night? I live two miles from Manchester airport (Heald Green). Makes hotels a bit pricey unfortunately. 

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I have some work commitments in the NEC on Saturday, so will be heading up for the TD open day in the evening. If you were heading out I'd have said we could grab some food or something.

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Yes, Keith, I am wrong. I admit I am wrong. I suppose I just really got used to how it was and adapted my driving to suit. Now I'm adapting my driving to not having these issues which really were worse than I thought. 

I don't know about that 193bhp run, Keith. I got 201 on both occasions with 60,000 miles driven inbetween sort of says otherwise. 

Glad there's a consensus on that! Thought it was just me... Really the only weakness of the car. That yawning torque dip makes it feel slower than it is. Far too easy to fall into the hole when overtaking unless you redline it every time.

It doesn't feel like a 200bhp car pulling only 1200kg. My old 170bhp BMW diesel would smoke it if I'm honest, and it wouldn't see which way my Saab went...

But one of TDs nice UEL manifolds and a remap will sort that - nice that we have a decent local specialist .

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