0.9 bar to 1.2 bar

Mr Bognor · Post by **Mr Bognor** » Wed Jun 11, 2014 4:28 pm

What in a very rough way is the normal gain in power going from 0.9 bar of boost to 1.2 bar of boost ?

Alan

Draven · Post by **Draven** » Wed Jun 11, 2014 5:07 pm

Stick a boost controller and change the boost from 0.8 to 1.2 bar.

Ren0W · Post by **Ren0W** » Wed Jun 11, 2014 5:59 pm

5-10 bhp?
Other good reason is it will lift up the boost limitation in low gear.

Driftlimits Performance · Wed Jun 11, 2014 7:44 pm

More than that.roughly,1psi=10bhp.

So from 14 to 18 about 40bhp.

Ren0W · Post by **Ren0W** » Wed Jun 11, 2014 8:11 pm

On my gen3 I got around 270bhp (at the wheels) with BPU and boost @ 1.2bar.
Meaning stock would be around 220 at the wheels?
And the 250 bhp advertised would be at the engine?

Gullzter · Post by **Gullzter** » Wed Jun 11, 2014 9:21 pm

Ren0W wrote:On my gen3 I got around 270bhp (at the wheels) with BPU and boost @ 1.2bar.
Meaning stock would be around 220 at the wheels?
And the 250 bhp advertised would be at the engine?

Dont forget you lose power over the years with parts not functioning 100% as they did out of factory

mrturbotom · Post by **mrturbotom** » Wed Jun 11, 2014 10:11 pm

Gullzter wrote:
Ren0W wrote:On my gen3 I got around 270bhp (at the wheels) with BPU and boost @ 1.2bar.
Meaning stock would be around 220 at the wheels?
And the 250 bhp advertised would be at the engine?

Dont forget you lose power over the years with parts not functioning 100% as they did out of factory

If you never service it maybe, in fact you'll gain power with a looser engine.

270whp is very good if on stock ecu circa 310fwhp, stock being 240fwhp

Mr Bognor · Post by **Mr Bognor** » Thu Jun 12, 2014 9:28 am

Ok some good answers there .

I was just thinking what the power and torque will be as i am booked to go back to surrey rolling road on the 21/06/14 for another run .

Below is what the car made in Feb this year with 0.9 bar of boost and the below mods

T26 hybrid turbo
Full exhaust and de cat
HKS filter
0.9 bar of boost

The car now has the below

Greedy intercooler
Full exhaust and de cat
KO racing large filter and 3" inlet
+ 4 psi on the boost from 0.9 to 1.2 BAR
Turbo blanket and other cooling bits in the engine
102 ron fuel

At a guess i was thinking about 300-310 BHP and 180-190 torque .

It is more going there to check the fueling more than anything but would still be intersted to see what it makes

Ren0W · Post by **Ren0W** » Thu Jun 12, 2014 9:38 am

Untitled by Ren0W, on Flickr

Untitled by Ren0W, on Flickr

1996 Turbo:
GReddy SMIC;
HKS 3" exhaust;
Apexi airfilter;
Berk 3" downpipe;
1,1 bar boost.

Untitled by Ren0W, on Flickr

Draven · Post by **Draven** » Thu Jun 12, 2014 10:08 am

I totally didn't read the OP's post correctly.

Mr Bognor · Post by **Mr Bognor** » Thu Jun 12, 2014 10:38 am

No i did wonder what you were going on about

Draven wrote:I totally didn't read the OP's post correctly.

Mr Bognor · Post by **Mr Bognor** » Thu Jun 12, 2014 10:39 am

This is more or less the same as my set up bar the stage 2 hybrid turbo and 1.2 BAR of boost .

Alan

Ren0W wrote:Image Replaced With URL For Quote [url]https://farm4.staticflickr.com/3705/9028625426_d404c898dd_c.jpg[/url]Untitled by Ren0W, on Flickr

Image Replaced With URL For Quote [url]https://farm3.staticflickr.com/2824/9028624490_f4cb5283d0_c.jpg[/url]Untitled by Ren0W, on Flickr

1996 Turbo:
GReddy SMIC;
HKS 3" exhaust;
Apexi airfilter;
Berk 3" downpipe;
1,1 bar boost.

Image Replaced With URL For Quote [url]https://farm6.staticflickr.com/5451/9026392631_ce8b633313_c.jpg[/url]Untitled by Ren0W, on Flickr

synXero · Post by **synXero** » Thu Jun 12, 2014 10:44 am

Skywalker wrote:More than that.roughly,1psi=10bhp.

So from 14 to 18 about 40bhp.

Is this true only for a CT26, or is it also true for (say) a GT30?

Martin F · Post by **Martin F** » Thu Jun 12, 2014 9:42 pm

synXero wrote:
Skywalker wrote:More than that.roughly,1psi=10bhp.

So from 14 to 18 about 40bhp.

Is this true only for a CT26, or is it also true for (say) a GT30?

Only ct26, every turbo is different, a gt30 could be putting out 400 bhp at 1.2 bar, so would be giving you a lot more bhp per 1 psi over a standard spec mr2...
There is a lot more to it than that though

Mr Bognor · Post by **Mr Bognor** » Fri Jun 13, 2014 9:42 am

Is that for a std CT26 tho or a hybrid CT26 ???

Martin F wrote:
synXero wrote:
Skywalker wrote:More than that.roughly,1psi=10bhp.

So from 14 to 18 about 40bhp.

Is this true only for a CT26, or is it also true for (say) a GT30?

Only ct26, every turbo is different, a gt30 could be putting out 400 bhp at 1.2 bar, so would be giving you a lot more bhp per 1 psi over a standard spec mr2...
There is a lot more to it than that though

Ryan S · Post by **Ryan S** » Fri Jun 13, 2014 9:52 am

Mr Bognor wrote:Is that for a std CT26 tho or a hybrid CT26 ???

Martin F wrote:
synXero wrote:

Is this true only for a CT26, or is it also true for (say) a GT30?

Only ct26, every turbo is different, a gt30 could be putting out 400 bhp at 1.2 bar, so would be giving you a lot more bhp per 1 psi over a standard spec mr2...
There is a lot more to it than that though

to be fair, i've read that it's more like between 5-10bhp per pound of boost, so i'd expect crappy turbos to be putting out the lower amount and decent turbos putting out the higher amount of power.

hence you making 290bhp at only 0.9 bar of boost.

Mr Bognor · Post by **Mr Bognor** » Fri Jun 13, 2014 10:44 am

So we could be looking at 320 BHP ish then whith my set up ?

Alan

sheppy wrote:
Mr Bognor wrote:Is that for a std CT26 tho or a hybrid CT26 ???

Martin F wrote:

Only ct26, every turbo is different, a gt30 could be putting out 400 bhp at 1.2 bar, so would be giving you a lot more bhp per 1 psi over a standard spec mr2...
There is a lot more to it than that though

to be fair, i've read that it's more like between 5-10bhp per pound of boost, so i'd expect crappy turbos to be putting out the lower amount and decent turbos putting out the higher amount of power.

hence you making 290bhp at only 0.9 bar of boost.

Ryan S · Post by **Ryan S** » Fri Jun 13, 2014 12:00 pm

Mr Bognor wrote:So we could be looking at 320 BHP ish then whith my set up ?

Alan

sheppy wrote:
Mr Bognor wrote:Is that for a std CT26 tho or a hybrid CT26 ???

to be fair, i've read that it's more like between 5-10bhp per pound of boost, so i'd expect crappy turbos to be putting out the lower amount and decent turbos putting out the higher amount of power.

hence you making 290bhp at only 0.9 bar of boost.

could be around that mark mate, few folk on here say the limiting factor is the turbo when going over 300bhp, then the fueling after around 320bhp.

Mr Bognor · Post by **Mr Bognor** » Fri Jun 13, 2014 12:28 pm

Ah ok so i may need to turn the boost down a bit if the AFR is out a bit .

Turbo should be ok i would think .

Alan

sheppy wrote:
Mr Bognor wrote:So we could be looking at 320 BHP ish then whith my set up ?

Alan

sheppy wrote:

to be fair, i've read that it's more like between 5-10bhp per pound of boost, so i'd expect crappy turbos to be putting out the lower amount and decent turbos putting out the higher amount of power.

hence you making 290bhp at only 0.9 bar of boost.

could be around that mark mate, few folk on here say the limiting factor is the turbo when going over 300bhp, then the fueling after around 320bhp.

www.imoc.co.uk

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