Non of that will improve it a whole lot.
Turbo or sc is what you need.
The gt86 is not a fast car in a straight line.its not what it's designed for.
Twisty roads not much will keep up

 

The first 3 you mention are all not really proven to give gains. You can experiment with your car. No 4, tyres will help you get a better launch which will help. No 5 is not really going to change it without a long tube manifold.
The single change ( though will cost you more than your 1 to 4 options together) is an exhaust manifold and then a tune. Tuning developments is the most cost effective and Ace is the best.
A turbo or a supercharger will not cost 3.5K but at least 4.5K , TD turbo and SC will take you to 5.5K unless you manage to get a used one.
From reading your post this is not the car for you as you seem to want best results in a traffic light F1. Think long and hard and be comfortable with what the car stands for, if you decide to take the plunge.

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The GT86 isn't about straight line speed, it's about the handling. Traffic light grand prix is not this car's forte,whereas twisty roads is! The tyres are Michelin Primacys fitted for a reason.
Sounds like you need to test drive one with a turbo & a supercharger to see if it meets your expectations.

 

There's nothing you can do NA to improve the 0-60 times which is hampered by not being able to hit 60 in second.

If you race on the road you get what you deserve. These cars are about the finesse of handling. Despite my race liveried car, I let absolutely everything leave me for dead off the lights. If it takes no skill, what's the point?

My car is quicker than a stock car in acceleration due to manifold, decat and remap, but it's probably not a huge amount. Better mid-range torque helps of course. I'd put my money into a nice set of coilovers and get the handling well setup. Nothing will keep up then.

 

2JZ swap

 

230 bhp is not achievable NA most people get 195-205 with catless manifold and remap, standard the cars make around 180. Intakes dont make a difference a drop in filter is all you need.

 

Remap + better panel filter (Cosworth meets fine particle standard and is less restrictive) + Low temp Tstat can get you 15-20hp

Exhaust can get you another 20-25hp for the full system.

Our cars generally a bit low on power so 230hp would be the top end.


Regarding the 0-60 numbers, TGB are conservative. In Japan at Tokyo motor show when it was unvailed the 0-100km/h (0-62mph) was 6.8sec

also:

[ame="https://www.youtube.com/watch?v=939Grdvphaw"]https://www.youtube.com/watch?v=939Grdvphaw[/ame]

 

There is this things called Go-faster stripes. Not sure how it works but my guess is it's something like why golf balls have dips or why shark suits are faster.



But,.. if you check what was done on the rally version: changed exhaust manifold, different map and shorter final drive.

The impact of that shorter final drive is complicated. It's more like a tradeoff and I believe some people on here have done comparisons showing it didn't have the 0-60 benefits one would expcet. But the rally engineers thought it worthwhile - as did some drivers whose choices I generally value.

 

The rally car also has modified engine internals I believe, and they might have wanted to beef up the diff anyway so changing the final drive fell out of that choice rather than a decision solely for faster times.

Gearing is complicated and certainly with forced induction I dont think it gives you much at all. At the end of the day our goal is to stay as close as possible to maximum power like and electric car... but corner speeds have an effect and I observed on some corners at snetterton, the stock gearing was better and vica-versa so I didnt both changing the final drives on mine. I use the car on the road and like the lower revs on the motorway.

 

I should have mentioned that the specs for the rally version mean supercharger/turbo cannot be used, and the turbo/supercharger approach is a different track from the NA approach.

 

Ultimately to make a gt86 faster:

staying N/A you can add, at best 40hp with remap, filter, tstat and full exhaust, and it might costs you £3k in parts and labour ~ £75/hp

Or you can add 90hp with forced induction (TD turbo kit) at about 4.5k ~ £50/hp


Note also a remap, Tstat and filter ~ £750 is £50/hp

So to conclude if you are budget limited id go for the latter and add an exhaust to taylor the sound if required.

 

How does the Tstat add power?

 

It adds very little on its own, but running the block 10C cooler allows you to run a bit more advance. Cosworth (as confirmed by their lead engineer) on their test bed measured 2-3hp gained by being able to run a bit more spark.

 

Maybe thermostat is only there to avoid sudden dramatic loss of power

 

Imho best possible mod - making driver faster . How about spending less on power mods, more on trackdays? This way you'll also get more fun . And this way also spendings on fuel/brake pads/tires (and maybe also crash repair damage cost and speeding tickets) will be less

 

Church makes a good point about making the driver faster but I must agree with growlercat, if you are just interested in the traffic light grand prix then an 86 is unlikely to be the car for you.

 

Same thoughts here with Gray, if you are looking for something straight line speed related I don't think this is the right car.. but nevertheless go for a test drive and see..

I guess the only thing is the large variety of the mods availability..

 

True but nothing wrong with wanting to make it a bit faster is there? if you like the handling and the looks but want a bit more poke.

Lots of the 86/BRZ community have go faster bits after all....

I will say however, I thought the stock GT86 was a very good out of the box package for road only.

 

A set of PS4's would get you off the mark quicker and are miles better in the wet.

 

The more restrictive cat is the one in the manifold so that would be the one you'd want to remove, but you'd need a remap as the sensors surround that one.


Getting performance on a budget all I would do is replace the panel filter with a Cosworth one (~£40), add a silicone intake hose (~£110) (halved the cost of the induction kit for similar performance which really is 4-5bhp at best, probably wouldn't even notice it due to dyno variation, but getting rid of the sound generator makes the car sound more natural) and PS4 tyres, then save up to do the manifold and remap in a single session. Tuning developments package includes a filter but they offer a drive in/out manifold and remap for £1500, then eventually whatever second hand catback you can source to fit your noise requirements.



Ideally whatever needs the remap is the last thing you'll want to do, otherwise you'll be forever going back to have the map adjusted for whatever you've bolted on since.

 

Well, technically one can drive just fine with catless header on stock ECU tune too, it may even give slight powergain and eg. fill torque dip .. issues w/o appropriate tune are two - gains will be partial, and due no cat CEL will be thrown, making car not MOT passable. Tune helps with those two bits, allowing to use more effective exhaust design for more gains and disabling cat readiness checks, but one can drive even without it (even if most won't)

 

If you are h*ll bent on being quicker than the car next to you I would shy away from an 86. It's really not a car for that, in reality you are just gonna end up frustrated unless you go forced induction.

 

0-60 times are all over the place for this car depending on where you look. People have managed to do it in 6 sec! It's all about tyres and the change in to 3rd gear. The stock tyres hold the car back a lot if you want better acceleration.

The best you can do without a SC/turbo is a better manifold (removing first cat) and a remap. After that you won't gain much by adding extra things.

 

OP made a post 5 days ago after joining and hasn't come back.

what do you think? Gone for the TT, or the Cloverleaf? Or rushed to buy an 86?

 

Did not like the answers we gave and ran away from an 86 back to his original choices.

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Interested in 0-60 front wheel drive sh1t boxes for town centre traffic light gp.


Now over on corsa net