Lack of Tuning bits?

[350matt]

Gents

I'm considering building a fast road / track day GT86 / BRZ and have been looking around on whats available on these cars and while there's umpteen different exhaust systems ( 50+!) and intake systems and a couple of designs of manifold / header

that seems to be it in terms of tuning kit unless you step up to fitting a supercharger / turbo

Does no-one do a set of cams or inlet manifold with individual throttle bodies? or port the heads?

Do they suffer with oil starvation as well on track ? or is the standard oil system good enough for hard use / racing?

has anyone looked into upping the rev limit over standard and re-tuning the engine to suit?

or are we all waiting for the next big thing?
Matt

[zephyr69]

Originally Posted by 350matt

Gents

I'm considering building a fast road / track day GT86 / BRZ and have been looking around on whats available on these cars and while there's umpteen different exhaust systems ( 50+!) and intake systems and a couple of designs of manifold / header

that seems to be it in terms of tuning kit unless you step up to fitting a supercharger / turbo

Does no-one do a set of cams or inlet manifold with individual throttle bodies? or port the heads?

Do they suffer with oil starvation as well on track ? or is the standard oil system good enough for hard use / racing?

has anyone looked into upping the rev limit over standard and re-tuning the engine to suit?

or are we all waiting for the next big thing?
Matt

Car is still relatively new. To my knowledge, many people are still waiting to get more feedback on the reliability/effectiveness for new parts, especially for an NA setup. Give it some time, considering how fast aftermarket parts have been developed for this car, there won't be a lack of choice for the parts you mentioned soon. I'm waiting to see what TRD is developing next.

[ft_sjo]

Originally Posted by 350matt

Does no-one do a set of cams or inlet manifold with individual throttle bodies? or port the heads? Matt

No, because that would require a bit of proper engineering, rather than just based bolt-on fabrication. It may or may not happen for the mainstream, may be isolated to tuner/engineers on a bespoke basis.

Unfortunately 99% of the modifying discussion on this forum revolves around bolt-ons.

[350matt]

So when I've read about some folks raising the rev limit there's been no internal work done to the engine to support this?

that seems a bit ......carefree shall we say?

[dabocx]

Stuff like that takes a good deal more R/D and it remains to be seen how many will tear apart the car to do cams and ITBs over a vortech kit. Im sure towards the end of the year or next year as the market grows we will see more of those parts come to market. I wish hytech would jump on the 86 train.

Im hoping before next march someone will offer core swaps for engines. I want a relativity easy install of a built motor with cams and the like, then jump up to a gtx3076 in time for TX2k.

[Kodename47]

Welcome to another UK lad!!!

There is a problem that most people will want best bang for £. That won't happen N/A on these engines so it's always going to be a smaller market and therefore not many people will develop these.

If you want N/A then consider a FD to help acceleration rather than building an engine. I'm sure parts will eventually come. There may be an intake manifold being developed too but it's gone all quiet on that front.

As for upping the rev limit, the stock lump wont make any more power much over the OEM setting even with average bolt-ons.

[JimmyMac]

I'd imagine that you'd have to visit a Japanese forum to get that information. A lot of Japanese companies are racing with this car and if you look at the Japanese car mags, you can see a lot of what they are doing and advertising. Throttle bodies everywhere, a few cams and internals, etc.. Tons of suspension and drivetrain tuning. We just have to wait for the stuff to start filtering out of Japan. I just wish I could fully read those magazines!

[xwd]

Which JDM companies are actually making cams? I haven't heard of anyone other than HKS actually investigating making them.

The problem with cams on these cars is there are four of them and they also are part of the VVT/DI systems. I wouldn't be surprised to see them cost $1200-1500, and offer marginal gains.

Like has been said right now bang for the buck, FI is the way to go. The Innovate S/C kit is like $3500? and can be installed in 4-5 hours and makes substantial gains on an otherwise bone stock car. What that does to the longevity of the car is hard to say at this point but we'll find out since a ton of people are going that route.

[350matt]

Originally Posted by JimmyMac

I'd imagine that you'd have to visit a Japanese forum to get that information. A lot of Japanese companies are racing with this car and if you look at the Japanese car mags, you can see a lot of what they are doing and advertising. Throttle bodies everywhere, a few cams and internals, etc.. Tons of suspension and drivetrain tuning. We just have to wait for the stuff to start filtering out of Japan. I just wish I could fully read those magazines!

interesting - got any links to these firms / website etc?

[Toma]

Originally Posted by 350matt

So when I've read about some folks raising the rev limit there's been no internal work done to the engine to support this?

that seems a bit ......carefree shall we say?

Not really. With good dyno charts, and knowing your gear ratios, you can compute optimal shift rpm. And in the "wider" gears, a optimal shift point of 7900 is not out of the question.

[350matt]

Originally Posted by Toma

Not really. With good dyno charts, and knowing your gear ratios, you can compute optimal shift rpm. And in the "wider" gears, a optimal shift point of 7900 is not out of the question.

I meant that pushing the rev limit of the engine up with no mechanical changes to the engine to allow it is the part I was concerned about

as the stock limiter is 7600Rpm?

so adding 300 rpm to this means you're in danger of valves hitting pistons etc ?

[boredom.is.me]

Originally Posted by 350matt

I meant that pushing the rev limit of the engine up with no mechanical changes to the engine to allow it is the part I was concerned about

as the stock limiter is 7600Rpm?

so adding 300 rpm to this means you're in danger of valves hitting pistons etc ?

Don't under estimate the FA20.

[dabocx]

Viscontis map for N/A has a 8k rev limiter and its got alot of users. Long term its hard to know what that limit will do over 30-50k miles but so far I have not heard of any issues.