500bhp

i will be getting my supra sometime soon and have a few questions if a few of you dont mind answering. I will be looking at about 500bhp as i want driveability and also to be good round corners but also good in a straight line. I dont think much would keep up with 500bhp. BPU gives you about 400 bhp doesnt it? exhaust, decat, boost raised to 1.1? What would i need to do to get 500bhp safely? would i need to get uprated cams, i hate the sound of uprated cams so i hope not. Also at this level would it be still reliable. Thanks for info in advance Sean

You would need a whole lot more than just some upgraded cams. Single turbo, fuel system, engine management etc. etc. etc.

Welcome to the site.

You can hit 500bhp without aftermarket cams. You'll be looking at a small single turbo conversion though, which costs rather a lot of money. Have a look at the spec list in my garage for an idea of the bits required, although my turbo is slightly bigger than you'd need. I'd recommend a Garrett GT35R or a T61 instead for quicker spool.

Welcome and it all been discussed a fair few times, search around and all will be revealed

i will be getting my supra sometime soon and have a few questions if a few of you dont mind answering. I will be looking at about 500bhp as i want driveability and also to be good round corners but also good in a straight line. I dont think much would keep up with 500bhp. BPU gives you about 400 bhp doesnt it? exhaust, decat, boost raised to 1.1? What would i need to do to get 500bhp safely? would i need to get uprated cams, i hate the sound of uprated cams so i hope not. Also at this level would it be still reliable. Thanks for info in advance Sean

you can have a look at my setup as a good starting point - it is a street car that easily pushes in excess of 550bhp.

As said, you will need to change the turbo set up.

ty for the replies. How much roundabout is it for a new turbo. What supporting mods would I need with this. If i go down the turbo route then id probably go for about 600bhp, will this be reliable for the supra still. Thanks again

Just search - there's an encyclopedic amount of knowledge in the threads. See what people have done, where they've made the mistakes and see if you can spot something which takes your fancy.

Budget £8k to £10k for a 600bhp single turbo conversion using new parts and labour from a company that know's what they are doing.

ty for the replies. How much roundabout is it for a new turbo. What supporting mods would I need with this. If i go down the turbo route then id probably go for about 600bhp, will this be reliable for the supra still. Thanks again

Don't bother about reliability at 600bhp if the job is done right.

didnt realise it was 8-10k for single turbo. Might just stay bpu then and put money into handling mods. How much bhp am i looking at if i add a fuel pump and controller then remapped to the bpu? thanks guys

didnt realise it was 8-10k for single turbo. Might just stay bpu then and put money into handling mods. How much bhp am i looking at if i add a fuel pump and controller then remapped to the bpu? thanks guys

Click this: BPU

didnt realise it was 8-10k for single turbo. Might just stay bpu then and put money into handling mods. How much bhp am i looking at if i add a fuel pump and controller then remapped to the bpu? thanks guys

Fitting an uprated fuel pump isn't going to give you any more power, but it's a good idea to replace the tired 15+ year old OEM pump.

What do you mean by controller? Boost controller? Not needed on a j-spec.

And to "remap" the ECU you either need a standalone or piggy-back ECU as the stock ECU is not re-mappable like other manufacturers.

Fitting an uprated fuel pump isn't going to give you any more power, but it's a good idea to replace the tired 15+ year old OEM pump.

 

What do you mean by controller? Boost controller? Not needed on a j-spec.

 

And to "remap" the ECU you either need a standalone or piggy-back ECU as the stock ECU is not re-mappable like other manufacturers.

Could he mean fuel controller?

Yeah thats what i meant fuel controller. I read if you go bpu then add fuel controller and new ecu and get it mapped it can have pretty good gains. Was just wondering what bhp figure id have with this instead of uprating turbos. Thanks

Yeah thats what i meant fuel controller. I read if you go bpu then add fuel controller and new ecu and get it mapped it can have pretty good gains. Was just wondering what bhp figure id have with this instead of uprating turbos. Thanks

Not much more than 400BHP.

Max you'll get on stock turbos with the following mods would be up to 430hp at 1.2bar.

Exhaust

1st & 2nd decat + restrictor ring

In/Ex Cams

Fuel pump

ECU/mapping

Quality intercooler in good condition (stock SMIC, aftermarket SMIC or FMIC)

Boost Controller.

Yeah thats what i meant fuel controller. I read if you go bpu then add fuel controller and new ecu and get it mapped it can have pretty good gains. Was just wondering what bhp figure id have with this instead of uprating turbos. Thanks

You don't need a fuel controller if you have a mappable ECU - the ECU handles all the fueling and timing.

At BPU levels I'd recommend fitting an Emanage Ultimate piggyback ECU.

For a small single, I'd look at a AEM FIC, Ryan has had these running nicely with 800cc injectors, so all is ok

I have seen 430bhp max on bpu 450bhp with hybrids I think, not really worth the cost. better off getting handling/brakes sorted. Also something to monitor egt/afr/boost etc. getting this sorted can be costly in their own right. A single can be done sensibly from bpu for less than quoted if you are mechanically adept and don't mind using s/h parts(from the right sources)

Rob

Boost controller? Not needed on a j-spec.

Not needed but an EBC can really improve the spool up of the turbos if it has a gain feature. Also if the boost settings on the EBC can be mapped against speed, it means you can maximise boost through all gears.

Why do people say they want 500 bhp having never driven a car with this power ?

In the 80s you would of won le mans with this power !!

The guy hasn't driven a stock car , and wants more?

It's a bit " I want 10 steaks " how about eat just the one first?

Then lots on here advise him where to go to order 10 steaks LOL

Why do people say they want 500 bhp having never driven a car with this power ?

In the 80s you would of won le mans with this power !!

The guy hasn't driven a stock car , and wants more?

It's a bit " I want 10 steaks " how about eat just the one first?

Then lots on here advise him where to go to order 10 steaks LOL

agree - took much time on their hands....

I had a 350bhp celica gt4 just got rid of it so a standard supra wud feel slow in comparison thats y am after 500 bhp lol

if it is your first supra....BPU will be plenty fast enough for a kick off