What turbo are you using???? - Page 2

anders · #11 03-08-2012, 06:08 AM

Has any one else done the math for turbo sizing? I want to see what somebody else came up with. I did some math for 200HP@ 5000RPM and needed 25 lbs/min with a pressure ratio of 2.2. ( that maps great on a TO4E housing 40 or 46 trim)

I have seen some VGT turbo's controlled mechanically from boost pressure.

michaelovitch · #12 03-08-2012, 06:19 AM

You don't have 30 billions answers.

If you did the math for your specific goal you're good.

http://www.turbobygarrett.com/turbob...choosing_turbo

Did you try this method ?

200 hp ?
do you plan to use it as a daily driver ?

May i suggest you to work on the head too.

you have quite a potential in this head work

anders · #13 03-08-2012, 07:03 AM

Well there will be many outcomes depending on intake temp, BSFC (could not get the specific on this motor) and VE ( not sure of the specific on this motor either). Just looking to see what others came up with and what they plugged in

Does any body know the BSFC and VE of the D24T?

anders · #14 03-08-2012, 11:33 AM

Oh... as for a daily driver, no. I was thinking a 242 for autocross and 1/4 mile fun.

michaelovitch · #15 03-08-2012, 12:12 PM

About the VE

http://www.scribd.com/michaelovitch/...Bosch-Ve-Pumps

a VE give max 25 kw per cylinder or 34 hp about 200 for a d24.....

the pump on a tic with a manual gearbox is a EP-VE 6-10 f2400 L tic 2

i don't know this engine specific bsfc (i 'm searching) but you will not be able to do 200 hp with stock components (like injectors)

anders · #16 03-08-2012, 02:13 PM

VE: Volumetric Efficiency. Most modern Direct injected turbocharged diesels have a VE of 98%. I think the D24T might be around 88%-92%. I'm not sure.

michaelovitch · #17 03-09-2012, 12:50 AM

Quote:

Originally Posted by anders

VE: Volumetric Efficiency. Most modern Direct injected turbocharged diesels have a VE of 98%. I think the D24T might be around 88%-92%. I'm not sure.

ok.

i thought you wanted the pump model to see what quantity of fuel it was able to deliver for the bsfc

i'm just thinking you can measure it with too rotating the pump out the engine with injectors on it.

you will have the bsfc.

just add compressed air to the hose of the pump

about the volumetric efficiency i think it's more the fact it's a two valve non cross flow head (i don't know how it's called) wich will determine the VE

you can improve it "easily" by porting the head

J_Lanttola · #18 03-11-2012, 11:57 PM

Quote:

Originally Posted by michaelovitch

About the VE

http://www.scribd.com/michaelovitch/...Bosch-Ve-Pumps

a VE give max 25 kw per cylinder or 34 hp about 200 for a d24.....

the pump on a tic with a manual gearbox is a EP-VE 6-10 f2400 L tic 2

i don't know this engine specific bsfc (i 'm searching) but you will not be able to do 200 hp with stock components (like injectors)

Is that with a 10mm rotor? I got 267hp with a built pump with 12mm rotor and stock injectors

The pump was built by a diesel tuning shop but i don't know what they have done to it, and i think they aren't very eager to reveal their secrets..

I just went and bought my turbo based on guessing, so i didn't make much calculating

Seems to work fine to me, except it could spool a bit quicker. with a smaller hot side it may spool quicker but on the other hand the drive pressure would increase.

And the car is a daily driver

michaelovitch · #19 03-12-2012, 01:58 AM

Yes stock.
official max power with the way it has been thought and built on the bosch papers.

Like you wrote, If you modify something ,you can't make calculations anymore to have an theorical accurate result.

Except if you have new datas of each modified component before to choose the turbo.

I'm curious to see your car

Have you got a video ?