Bullet Performance supercharger by Mercury Performance

[Visconti]

umm can some one link me ??!

[speed3]

https://www.facebook.com/Bulletcars



says they ran those numbers at 5psi boost.

[Visconti]

Originally Posted by speed3

https://www.facebook.com/Bulletcars



says they ran those numbers at 5psi boost.

I dont see a dynosheet anywhere....

[sw20kosh]

Originally Posted by speed3

https://www.facebook.com/Bulletcars



says they ran those numbers at 5psi boost.

Their baseline HP # is quite low so their results are a bit understated I guess.

Don@AP made 32% increase in HP and 17% increase in torque at 3 - 4 psi.

It is obvious from Bullet's numbers that this size positive displacement supercharger makes its power in the low-mid range, while Don's turbo kit keeps that torque running all the way to redline (hence his huge HP increase).

[Jordo!]

Originally Posted by sw20kosh

They just updated facebook with a teaser of information:

This is what you have been waiting for, FTZ 86 Power figures
Initial Tune For Brisbane to Sydney Road Test / WTAC
Torque at 4000rpm up 31% from 136nm to 178nm
Peak Torque at 5750rpm up 25% from 160nm t0 200nm
Power at 4000rpm up 31% from 56kw to 73.5kw
Peak Power at 6750rpm up 21% from 106.8kw to 128.7kw
MORE TO COME

Peak power went from 143 hp to 172.5 (21% increase)

They dont provide boost #'s so it is really hard to say yet. I wasn't expecting much peak power from a supercharger like this but let's see what boost they are on

The proportionate gains are a good start tho'. Is this non-intercooled?

A2W IC and smaller pulley and this thing will fly!

[sw20kosh]

Originally Posted by Visconti

I dont see a dynosheet anywhere....

They haven't posted one yet. They just got done with that event. Prolly need a day or two to post all the info.

[Style]

subbed....I want some toyota emblems

[sw20kosh]

Originally Posted by Jordo!

The proportionate gains are a good start tho'. Is this non-intercooled?

A2W IC and smaller pulley and this thing will fly!

As far as proportionate gains are concerned, dont put too much stock in the "at 4000 rpm it made ___% increase" as this is just the factory tune's DIP region. Look at Don's turbo kit at 4000 rpm (which makes ~30-35% more torque thank stock, but only makes 17% more peak torque :



#'s without graphs can be misleading! The 4000 rpm range is not a fair comparison point because that can be tuned out as seen above.


It has an A2W already.

[speed3]

Originally Posted by Jordo!

The proportionate gains are a good start tho'. Is this non-intercooled?

A2W IC and smaller pulley and this thing will fly!

Another post on their wall says water to air intercooler.

[serialk11r]

Originally Posted by sw20kosh

As far as proportionate gains are concerned, dont put too much stock in the "at 4000 rpm it made ___% increase" as this is just the factory tune's DIP region. Look at Don's turbo kit at 4000 rpm (which makes ~30-35% more torque thank stock, but only makes 17% more peak torque :

#'s without graphs can be misleading! The 4000 rpm range is not a fair comparison point because that can be tuned out as seen above.


It has an A2W already.

Yup, with a positive displacement SC you will see higher gains where volumetric efficiency was poor stock.

Power increase looks a little on the low side because they say it's a 1.4 pressure ratio design, and it's intercooled, whereas the power is only going up ~20%. Somehow I suspect they used a larger pulley first to try to be safe, instead of going up to the supercharger's optimal boost level.

EDIT: Okay oops just saw the 5psi thing. Supercharger can efficiently put out a little bit more boost than that.

[Tradewind]

Yes its 5psi and WTA intercooled

The results shown a few posts back are correct indeed.

I was speaking to the manufacturer themselves just this morning

Available in 2 months as a complete system

[DriftEightSix]

With this system, does boost start from idle?

Is there any graphs?

[d1ck]

Originally Posted by DriftEightSix

With this system, does boost start from idle?

Is there any graphs?

There are no graphs yet. They will be released soon I think.

[Visconti]

Dynosheet or it didn't happen!