Just an idea...help needed (turbo)

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AutoSHO

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I will have a well engineered turbo kit available this summer in limited quantities as well. I'll post more info in the next month or so when I get started on the fabrication. It will feature properly sized tubing, Mandrel bends, intercooler, properly sized turbocharger, and all the brackets, piping, and oiling to make it work. I may also offer a kit with fuel management.
 

Off Road SHO

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AutoSHO said:
I will have a well engineered turbo kit available this summer in limited quantities as well. I'll post more info in the next month or so when I get started on the fabrication. It will feature properly sized tubing, Mandrel bends, intercooler, properly sized turbocharger, and all the brackets, piping, and oiling to make it work. I may also offer a kit with fuel management.


I was wondering when you were going to get busy and do something like this. Good luck with it.

Tom
 

SHOWYA

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AutoSHO said:
I will have a well engineered turbo kit available this summer in limited quantities as well. I'll post more info in the next month or so when I get started on the fabrication. It will feature properly sized tubing, Mandrel bends, intercooler, properly sized turbocharger, and all the brackets, piping, and oiling to make it work. I may also offer a kit with fuel management.

So what 'properly sized' turbo are you going to use? I have a TO4E .68A/R, so im looking into bitterweet sho's exhaust tubing. What about wastegate size? I like how Toolman's turbo sits under the hood.
 

somedude_001

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AutoSHO said:
I will have a well engineered turbo kit available this summer in limited quantities as well. I'll post more info in the next month or so when I get started on the fabrication. It will feature properly sized tubing, Mandrel bends, intercooler, properly sized turbocharger, and all the brackets, piping, and oiling to make it work. I may also offer a kit with fuel management.

just a thought from a nobody but maby it would be better to offer the kit without a intercooler, and maby offer that as a option/upgrade later. it will make the kit cheaper, maby instead of a intercooler include the fulling or LPM, I assume a low bost setup.
 

MI-SHOFEAR

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A T3 is large for the street isnt it? Wont you get alot of lag? Or is that a T4. When i was looking into DSM's a BIG turbo was a T4/TDO4

Jeff
 

SuperchargedSHOguy

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MI-SHOFEAR said:
A T3 is large for the street isnt it? Wont you get alot of lag? Or is that a T4. When i was looking into DSM's a BIG turbo was a T4/TDO4

Jeff

DSM and big turbo in an oxymoron. There are tons of reasons why a larger turbo would work better for the SHO 3.0 and not the DSM 4 popper.
 

SHOGUN R

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I love Turbos :naughty:

Ok on a turbo it depends on the turbine housing A/R or CM and comperssor wheel A/R or CM

First you must figure what you are after as in HP that will give you a idea on what to look for ie T3 T4 ect

Then you need to factor in what size moter you are running and at the same time you need to figure @ what rpm you want to start makeing boost.

also some brands spool up diffrent ie Holset HX35 spooles up faster then my stock T3 on my 2.3 turbo with the correct housing and the T3 tops out at 280-300 HP now the holset will flow up to 400 WHP :thumb:

so it all depends on what you are after

I would run a T3/T4 hybrid with a large hot side now the 2.3 guys run the .68 + AR hot side and that is a 2.3 so .9 and up I would guess on the 3L

I hope that helps a little :shrug:

more info http://www.turboford.org/ubb/ultimatebb.php?ubb=get_topic;f=4;t=000050

Tom
 

Dr. Tweak

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Here's a post I made a week back or so...

Dr. Tweak said:
Uh oh... time for some turbo math!!! WOOT


All calculations are at sea level and 80*

10 psi + 14.7 = 24.7 / 14.7 = 1.68

Pressure ratio: 1.68

3.0 liters x 61.02 = 183 CID

Max RPM: 7500

Volumetric efficiency: I'll assume 90%

So...

183 x 7500 x .05 (4 stroke takes air 1/2 the time) x .90 / 1728 (inches into feet) = 357 CFM

Now the CFM under boost will be: 357 x 1.68 = 600 CFM

600 CFM x 0.074 (weight of one cubic foot of air at sea level and 80*)= 44 lbs/min

And we'll also assume that full boost will be reached by 1/2 max RPM which is around 3800 (22 lbs/min)

Here is the T04e 57 trim:

T04e 57

Way too small. The line runs right off the map around 38 lbs/min.

T04b S:
T04b s3

Again, way too small, this map only goes to 38 lbs/min.

t04 60-1:
T04 60 1

This pic is a little screwed up for some reason, but you can still see that this is a great turbo. The lines runs right though the middle of the efficiency island and just starts to fall off at 44 lbs/min.

The T-61, T-64, and T-66 could be used too, but they would be better suited to high boost... If I were you, I would definetely go with the 60-1. Besides, Toolman said it's a good one, so what else do you need? :D

*edit* BTW it's $649 here: http://www.turbocalculator.com/map-t04.php?img=t04-60-1&turbo=Garrett T04 60-1
 

SonicRiot

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T4 too big?? Haha. Maybe for the Briggs and Strattons you find residing in the engine bays of rollerskate-sized econoboxes.

I have a Borg-Warner Systems *** K-27 off of a '98 993 911 Turbo (and it's match :cool: ) that I was considering using.


...or selling, ya know, if anyone's interested... in one, or both for a TT setup. :evilgrin:
 

Mike_Rudy

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im kinda laughing to myself at how small of turbos you guys use, on my streetport 12a (rx7 motor) i am running a .96 to4 and it spools up super quick
 

Off Road SHO

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Mike_Rudy said:
im kinda laughing to myself at how small of turbos you guys use, on my streetport 12a (rx7 motor) i am running a .96 to4 and it spools up super quick


Yeah but you don't have a boinger motor like ours. :rofl:

Tom
 

SonicRiot

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T04... as in the turbo Audi guys upgrade to? As in the same turbo as the T03 but with a marginaly bigger compressor housing and a different wheel? Big?!? I don't consider a Turbo that pumps less than a bar at max efficiency very big...

I do consider the two T-66s that will reside on a certain '73 T/A 400/427 pretty darn big.

Also, remember, an RX7 is rotary. Its easy to spin those engines to 9000 RPM with stock internals. And any gain in low end torque will feel huge to the driver, thus cancelling out the sensation of extreme turbo lag. IIRC, the RX7 engine also produces a ton of output volume at low RPM in comparison to a similarly displaced cylinder-based engine. Thus, more boost, faster.

RX7s held a powerful future for Mazda. Too bad the 3 and 4 rotor engines can't pass U.S. Smog regulations.






Hahaha. He said BOINGER. :laugh_ti:
 

adidas_kn

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turbo ideas

I know everybody wants to turbo these cars and they seem to only truely go for a single larger turbo. But why? If you got some nice log style turbo manifolds and 2 t28 sized turbos you should be able to fit them on both sides of the engine. Proper tubing angles and sizes would make life a little easier also. 2 t25-t28 turbos should make for quick spool up and good 6-12psi and would make tubing smaller and easier to come by. Looking at my 2.0L turbo with a nice large t3 hybrid (1.6bar boost on a regular with 99 octane gas)and a 4-1 equal length turbo header, it doesn't really take up that much room in front of the motor. See my motor below.

698587_10_full.jpg


A properly made log style manifold would fit the turbo closer to the engine for space requirements. Maybe even a modified version of our factory headers would work good also. Make a nice y-pipe to feed both turbos into the MAF and modified exhaust y-pipe adapted down pipe style to a good catback or modified exhaust system.

Anyways just throwing a couple ideas out for the fabricators out there. Cause' I personally don't like the placement of the turbos on the existing turbo SHO's(all 2 of them that are running). seem like a good spot to fry something like a rubber line or 2 and create way too much under hood heat.

Later
"J"
 

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