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post #1 of 12 Old May 9th, 2012, 03:27 PM Thread Starter
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331 SET UP WITH V2 SI need sugestions

Hi there,

I bought an unfinished project and would like to try to set this car up right so it will run good and achieve some nice hp numbers. Currently the car runs fine. I had to have the vortech v2 s sent out for new bearings and had them instal an upgraded si impeller. I have asked this question to a few shops and have got different answers. Some have told me to change the fuel pump, others have told me the fuel pumps are fine and to change the injectors to 60lb and change the mass air to 90mm. Any suggestions are welcome. This car is primarily for the street with occasional strip usage.

Here is the current set up:

DSS 331 stroker
anderson motorsport cam
Trick Flow twisted wedge heads with 190cc
trick flow street heat intake
vortech fmu (which i think can be deleted)
42LB injectors
aeromotive fuel pressure regulator
bbk 75 mm throttle body
air prom 76mm mass air
egr delete
vortech v2 si with 3" pulley 8 rib pulley set up
anderson power pipe
bbk shorty headers
bbk off road h pipe
2 wide band 02 sensors
flow master 3 chamer exhaust
wallbro 255 lph in tank pump
t rex in line pump

What would you recommend changing in this set up? Thanks for the input.
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post #2 of 12 Old May 9th, 2012, 03:44 PM
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You can get block breaking power with what you have now. I wouldnt put another dime into it.

You do have two options, keep the FMU and get a boost retard module and tune it yourself or a better option is to remove the FMU, don't get a BTM and get a proper tune/chip. I have a FMU and a BTM setup, they work great and allow self tuning but it is not an ideal setup for most people.

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post #3 of 12 Old May 9th, 2012, 04:32 PM
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^^^^Dump the FMU. Get a chip and a tune. Do you know how much boost it was making before the bearings craped out?
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post #4 of 12 Old May 9th, 2012, 04:45 PM
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I agree with both ^

Its not really a good idea to stroke it, with a good HCI and then on top of that through a power adder on..... your block could split. All a dss block is... is a stock block that they have machined.

Id either get an aftermarket block or ditch supercharger .


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jba headers, 2 1/2" x pipe
flowmaster super 10 mufflers,
255 fuel pump,
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post #5 of 12 Old May 9th, 2012, 04:58 PM
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I'd loose the FMU(get it tuned), go for a bigger intake(Trick Flow R or Holley), I'd also go for some bigger headers, at least 1 3/4". And like others stated a Dart, World, or Boss block!

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post #6 of 12 Old May 9th, 2012, 06:07 PM Thread Starter
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Right now it has an SCT chip in it and a defunct tunner in NY did a crappy tune on it. It apparently came back with a spark plug wire off and a vacuum leak. The credibility of the tune is questionable at best. The car has a 3" pulley so I believe that is about 12lbs of boost with an v2 s. It has a v2 si now so its is slightly more. I am toying with the idea of doing a megasquirt stand alone for the car.

I am located in NY and have been reading on forums that realspeed in Long Island is a good tuner and a friend had good reviews about DEZ Racing in Mass.
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post #7 of 12 Old May 10th, 2012, 06:28 AM
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A 7-8# pulley with the power pipe should get him to 10PSI. He should be safe with that no?
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post #8 of 12 Old May 10th, 2012, 09:19 AM
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Quote:
Originally Posted by 331SNAKE View Post
Right now it has an SCT chip in it and a defunct tunner in NY did a crappy tune on it. It apparently came back with a spark plug wire off and a vacuum leak. The credibility of the tune is questionable at best. The car has a 3" pulley so I believe that is about 12lbs of boost with an v2 s. It has a v2 si now so its is slightly more. I am toying with the idea of doing a megasquirt stand alone for the car.

I am located in NY and have been reading on forums that realspeed in Long Island is a good tuner and a friend had good reviews about DEZ Racing in Mass.
Realspeed or Mustang Magic on Long Island and I guarantee you will be happy with either one. IIRC, Mustang Magic costs 500-550$ for a chip/tune and Realspees is around 600. Very worth it though.

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post #9 of 12 Old May 10th, 2012, 10:42 AM
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You cant really judge how much boost your going to have by a 6 lb, 8 lb, 10 lb pulley. It all depends on the modds to the car. If you have a good flowing heads and intake with lower compression, ect ect.... your boost is going to be less then if that set up was on a stock motor. Boost is just left overs that wasnt used. With a well breathing engine you can gain just as much hp if not more with less boost. Well thats how i undetstand it any ways.


DART 331ci stroker, AFR 185 heads,
Trick Flow R intake,
Accufab 70mm tb, 75mm pro m Maf, 30lb injectors,
jba headers, 2 1/2" x pipe
flowmaster super 10 mufflers,
255 fuel pump,
3:27 gears
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post #10 of 12 Old May 10th, 2012, 10:45 AM
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Quote:
Originally Posted by ryanw View Post
You cant really judge how much boost your going to have by a 6 lb, 8 lb, 10 lb pulley. It all depends on the modds to the car. If you have a good flowing heads and intake with lower compression, ect ect.... your boost is going to be less then if that set up was on a stock motor. Boost is just left overs that wasnt used. With a well breathing engine you can gain just as much hp if not more with less boost. Well thats how i undetstand it any ways.
You're correct in thinking this way

People with stock motors can push 14psi with a turbo and make less power than a h/c/i mustang with an 8psi vortech.

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post #11 of 12 Old May 10th, 2012, 02:43 PM
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Very true I see he is using 190cc heads. I would still try a 3 and half inch pulley before a 3 inch.
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post #12 of 12 Old May 11th, 2012, 05:15 PM Thread Starter
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Thanks guys. I got the supercharger back from vortech yesterday and put it in the car. Have to readjust the H pipe have a nice exhaust leak that makes it sound like a race car. Im sure my neighbors enjoyed it when I fired it up last night at 8 after putting things back together.
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