Any one else make twinz

[Noreaster]

In no way am I trying to pick a fight over turbo #s

Im just saying your math might look nice for absolute flow, but streetable wise their going to be laggy.

I was figuring
LB7,LLY,LBZ,3788-4202
4088-4508
4094-4708
4294-4718
4202-5533
4508-6041

 

[Mike]

IMO on the setup..

LBZ turbo is roughly a 55-60lbmin charger a
4508 is a 110lbmin charger at max flow. saya 20-80% range you looking ate 25-100lbmin range with high effeciency. ~ 45lbmin and a ~2:1 PR is already taking over the job of the small charger on the exhaust side of the this charger. @ 35lbmin and 1.5-1.75 drive pressure the 4508 is already spinning this is with a 1.01 A/R turbine housing this would be the largest turbo i woudl
run with the LBZ turbo unless i was running N20

4508 turbo. http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT45/GT4508R.htm
turbine flow
http://www.turbobygarrett.com/turbo...bochargers/gt40_images/GT4508R_Turb_large.gif
compressor flow.
http://www.turbobygarrett.com/turbo...bochargers/gt40_images/GT4508R_Comp_large.gif

1 PR is 14.7

There is a bunch to be realized from the links provided. A bit of time will show some more information.

 

[Mike L.]

Guy and I are looking at PPE. :cool2:

 

[Blackbird1877]

Guy and I are looking at PPE. :cool2:

Are you sure the tranny can handle it?


:rofl::rofl::rofl::rofl::rofl::rofl::rofl::rofl:

 

[malibu795]

There is a bunch to be realized from the links provided. A bit of time will show some more information.

? what is your sugjestion?

 

[malibu795]

In no way am I trying to pick a fight over turbo #s

Im just saying your math might look nice for absolute flow, but streetable wise their going to be laggy.

I was figuring
LB7,LLY,LBZ,3788-4202
4088-4508
4094-4708
4294-4718
4202-5533
4508-6041

how do you figure laggy? granted by deffeination it is subjective....


granted alot of this is for sealevel and what not. any you right they are pretty much the biggest you could get.....

 

[Mike]

? what is your sugjestion?

Just saying it's only air, forced air.

Here is one link, when air is compounded the rules change.


http://www.turbobygarrett.com/turbobygarrett/tech_center/turbo_tech103.html

These are the same principles we work with on Mick's truck. Compound turbo's, compounded turbo/supercharger as well as compounded superchargers. Most issues relate to heat.

 

[slowlmm]

So Tommy wheres this twin setup?

duno mabey at mpi being developed or in my garage. its probbaly why i was asking if any one else made them

 

[SIKDMAX]

huh? I thought someone said you did a 40?

 

[slowlmm]

dont belive every thing you here guess you will see whn we line up next time

 

[SIKDMAX]

Whens that? Me and mike l need to schedule an appointment... then up north.... :secret:

So when are we running?

 

[slowlmm]

whnevr and where ever you want dont knoww when theres another track day going to irwindale tomraow night

 

[SIKDMAX]

LOL.... I dont participate in 1/8 mile racing :rofl::rofl:

 

[slowlmm]

truck wont make it tht far :rofl: practice is practice buddy

 

[Noreaster]

how do you figure laggy? granted by deffeination it is subjective....


granted alot of this is for sealevel and what not. any you right they are pretty much the biggest you could get.....

Im just going by Garretts different turbos, if you really wanted to fine tune a set you could mix in s300s/s400s. Problem with Garretts is BB turbos are expensive & hard to get wastegated housings. For the primary you don't need a BB or an internal gate, journal bearings & external gate are fine.

 

[SIKDMAX]

Howd you run at the track today Tommy?

 

[MAX707]

Are you sure the tranny can handle it?


:rofl::rofl::rofl::rofl::rofl::rofl::rofl::rofl:

I just got back from PPE and Louie their tranny guy said he took it apart right after Joe squashed the rods and it looked fine.

 

[slowlmm]

Howd you run at the track today Tommy?

not good where having some serious programing issues with the ecm. things are not comunicating with each other. well it appears to be tht way at least just going to take some time to get it figured out. part of the fun of being first