Which Vortech for my goal?

sk8inrj1 · Apr 15, 2008

My goal is about 400-440 rwhp.

I want to do this with a vortech.
Motor with be the 94stock block with stock crank and rods, but with forged low compression pistons for a CR of about 8.5:1 It will be a 306.
Heads will be the stock iron gt40 heads with a valve job and supporting valve train for a custom cam that will pass CA smog.
Intake will be stock 94 cobra upper and lower.
TB,injectors, fuel pump and MAF will be what ever is needed to support the vortech
Exhaust will be BBK unequal length shortys, pypes catted x-pipe and magnapack cat back.

What vortech model and PSI would I need to get to my goal?
And of course it will be tuned.

Euroeater95 · Apr 15, 2008

If I was you I would rethink using the stock rods. I could be wrong but I heard that they are junk, I would go with new rods and be careful with the stock block. With that kind of power at the wheels you might be right at the blocks limit. I am not telling you what to do just giving some advice.

sk8inrj1 · Apr 15, 2008

If stock rods are just, then they will get tossed. As far as block, I know I am right at the limit and thats why my goals are what they are. If I find a mexican or XXX block, I will definately use that instead of my 94 block.

thorco3 · Apr 15, 2008

what trans will you be running... you'll def be pushing it with a T5

ScottyDsntKnow · Apr 15, 2008

Saw this on the corral and I echo their sentiments. S trim is easily the best choice although that T-5 won't like being behind 400+whp. Have you considered a Kenne Bell or a Novi?

sk8inrj1 · Apr 15, 2008

I have considered the KB but I don't like them for 5.0's. Those roots/screw type blowers need an intercooler in every application in my opinion. KB's belong atop 4 valve motors, period. I hear very little about NOVI's. Anyone have any info and links for NOVI blowers?

I've read that someone with a KB on their 5.0 would just plain overheat while cruising at freeway speeds.

As for tranny, I will either do a hybrid T5 with astro gears in a gforce case or go TKO500 or TKO600. I am also considering a TKO3550 if they can hold the power.

Procharger would be my first choice if there wasn't such a price gap.

ScottyDsntKnow · Apr 15, 2008

3550 will hold the power with zero issues. The block will blow apart before that trans goes provided you don't grind the hell out of it while you shift. A short shifter with adjustable stops is a MUST with a 3550 though since to shift into 2nd quickly you have to pull much harder compared to a T-5 and if you don't have a properly adjusted stop you'll tear up your forks.

I have a 3550 with a tri-ax and I love it. Not having to worry about the T-5 letting go is nice. 3550s are all over the place used now too. There's almost always a 3550/bell/shifter combo for sale on the Corral from betwen $1,000 to $1,200. Just be aware that with any TKO you NEED to properly degree the driveshaft to avoid vibes. You also need to run a DS spacer and flip the crossmember to allow it to bolt in properly.

ryclef331 · Apr 15, 2008

s-trim or a novi-2000

LAFENATU · Apr 16, 2008

S-Trim will give you more than enough.

ScottyDsntKnow · Apr 16, 2008

Just a thought, You CAN intercool the S trims btw. Ppl say it can't be done on a SN95 but you just need to think outside the box.

To run an intercooler on a 94/95 with a vortech:

-Buy an intercooler of correct dimensions
-Buy a coldside 3" pipe/coupler kit
-Do the fox TB conversion and flip your upper so the tb faces the driver's side
-Modify your throttle cable and ditch the cruise cable(or modify it if you're able to and want cruise)
-Pull the bumper and mount the intercooler
-Pull the driver's fender and remove the washer reservoir
-Clock the blower straight down and run a 90 degree pipe to the intercooler. If you're blower doesn't have a straight outlet take it to an exhaust shop and have them cut the outlet pipe and weld a straight pipe onto it.
-Run another 90 degree bend out the other side of the intercooler and up into the driver's fender area
-45 degree the pipe through the hole where the washer reservoir fill was
-45 degee this pipe right into the TB
-Make sure your bypass valve is installed properly
-Button the thing back up

You now have an intercooled S-trim SN95 stang and can run less boost to make the same power to improve the longevity of your blower and motor. Not to mention it looks sick.

sk8inrj1 · Apr 16, 2008

I can't run an intercooler on the vortech because I want to pass CA SMOG and EMISSIONS!

ScottyDsntKnow · Apr 16, 2008

How would an intercooler prevent you from passing smog or emissions???? It has nothing to do with your egr or emissions stuff. And the smog pump shouldn't be in the way of anything either. I'm confused.

sk8inrj1 · Apr 17, 2008

Nearly any modification to the engine has to be CARD legal. Also If I change over the a fox throttle body set-up, I have to modify or delete EGR because the fox's have exhaust gases running through the intake. If anyone has passed CA SMOG with the 94-95 with a fox throttle body set-up, please inform us!

LAFENATU · Apr 17, 2008

An intercooler on a Vortech is a waste for a car you drive on the street.

.02

Paul · Apr 17, 2008

LAFENATU said:
An intercooler on a Vortech is a waste for a car you drive on the street.

I disagree.

Intercooling any forced induction motor provides significant benefit.

ryclef331 · Apr 17, 2008

Paul said:
LAFENATU said:

An intercooler on a Vortech is a waste for a car you drive on the street.

Click to expand...

I disagree.

Intercooling any forced induction motor provides significant benefit.

ESPECIALLY on the street where constant operating temps will cause an increase of intake temps. Rolling your car up the lanes and ripping off one pass at a time down the track, you won't see AS HIGH of intake temp increases as you would say, an hour of driving around THEN jumping on the loud pedal. ANY car with forced induction will benefit from intercooling.

sk8inrj1 · Apr 18, 2008

Would I be running into issues with a vortech at around 10PSI making 400-440 RWHP because there is no intercooler? I will drive the car as much as everyday and take it on 4+ hour trips.

ryclef331 · Apr 18, 2008

sk8inrj1 said:
Would I be running into issues with a vortech at around 10PSI making 400-440 RWHP because there is no intercooler? I will drive the car as much as everyday and take it on 4+ hour trips.

Thats nothing to really worry about. It WOULD STILL BENEFIT from intercooling but you can still get away with out it just fine.

You guys gotta realize as well that you can BUY a universal front mount intercooler of the net, roll the car up to a COMPETENT MUFFLER SHOP and have them bend up piping FOR your application. Just b/c you have a vortech supercharger, doesn't mean you're limited to JUST vortech tubing and intercoolers. There is nothing magical about them. We do turbo kits of all sort at the shop on the import stuff all the time. I mean if you really gotta have aluminum tubing, then its going to get more pricey but with a few generic bends of mandrel tubing and a couple sticks of exhaust pipe and a 110 MIG....you're intercooled.