Forced Induction Vortech V3-si On 1994 Cobra

94blackcobra · Jul 15, 2012

Update?

InMyPrimeSVT · Jul 15, 2012

The thing runs like a raped ape. I love it. My god this is a new animal. Only one problem. I drove it home, everything was cool, now the fuel pressure, air/fuel, and boost gauge all shut down. Soo...guess I'll need to get that adjusted. Have no idea how this happened.

94blackcobra · Jul 15, 2012

I'm sure it is something minor on those gauges. How much torque did you see on the dyno?

99FiveOh · Jul 15, 2012

My guess is all those gauges are sharing the same power source and it's disconnected somehow.

fiveohwblow · Jul 16, 2012

InMyPrimeSVT said:
You guys should post up a new thread to see if he chimes in. No way he'll see it buried in here on page 6. I get the car back tomorrow. I'll post up some videos and dyno sheet.

That's why you do the @ tags to get his attention

InMyPrimeSVT · Jul 16, 2012

382 torque.

99FiveOh · Jul 16, 2012

I'd be interested to know how much timing it was running and how hot the ACT's were. Also do you remember how hot it was in the dyno cell when the car was run?

94blackcobra · Jul 16, 2012

So you made 387 hp and 382 tq with an ambient temperature of 75*. Those aren't bad numbers at all.

InMyPrimeSVT · Jul 16, 2012

Yeah, and they even listed the ambient at 85. I took the temp outside of the garage.

94blackcobra · Jul 16, 2012

Are you satisfied with those numbers or still wanting to see over 400?

InMyPrimeSVT · Jul 16, 2012

Well, honestly, it's kind of a drug. I would love to push this thing to 450. That being said, I am very happy with how it ran yesterday. I took my brother in law for a ride and it scared the out of him.

InMyPrimeSVT · Jul 16, 2012

Oh sorry, it made 383. I read it wrong. Either way.

94blackcobra · Jul 16, 2012

Did it max out at 10 psi boost or did you see higher?

InMyPrimeSVT · Jul 16, 2012

InMyPrimeSVT · Jul 16, 2012

I honestly don't know if I would put a methanol kit on this. Just not too into it right now I guess. Most likely because I don't know it.

I do have a couple of things I'd left to do to it:

Trick Flow Heads, Cam, Intake.
Aeromotive Fuel Rails
MSD Distributer
Smoothed Engine Bay

That pretty much sums up the rest.

94blackcobra · Jul 16, 2012

If you swap out the h/c/i, you should be flirting with 450 easy. I was told that if I swapped out my heads for Edelbrock 5.0's and an F cam I could expect around an 80 rwhp gain. The tuner recommended the Edelbrock 5.0's because they will allow you to keep the stock valve covers and the stock intake.

Methanol injection is a viable and proven way to increase power and acts as a safeguard against detonation. They used it on WWII fighter planes, so the idea has been around for a while. I actually have a meth injection system being delivered tomorrow.

Other options for adding power without the expense of swapping the h/c/i would be to run E85 or racing fuel. E85 is cheap and has an octane rating of 100+ but the downside is that you have to run about 30% more fuel, which could mean you would need larger injectors and fuel pump. It also lowers your mpg's a good amount. Racing fuel will net you the greatest power gains with no additional modifications required, other than needing to have your car tuned for it. The downside is that it can be expensive, around $7.00/gallon, and it may not be available locally. I have been seriously considering running racing fuel because I don't put that many miles on the car every year and there are a lot of places around me that sell it.

I was told not to bother swapping out the stock fuel rails because they will handle around 500 hp without a problem.

InMyPrimeSVT · Jul 16, 2012

Thanks for the advice! I wasn't swapping out the rails for HP, just for bling.

99FiveOh · Jul 16, 2012

Like I said, a meth injection kit will net you more gain than H/C/I on a Cobra. On a GT it's another story but you guys already have better flowing intake and heads so what's hurting you now is heat. Just look at turbo kits running 3-4 psi less boost and making 450-475 HP easily. Obviously there is much less drag on the motor to turn a turbo but it's also due to the fact that they enjoy 100-120* inlet temps because of being intercooled. When I had my car dyno'd I was seeing I believe around 220* ACT's!! My tuner said I could easily be well over 400hp if I could cool that down. He also said once the Meth kit is installed and tuned I won't even know it's there until I have to fill up the tank! Swapping your top end is just pissing in the wind at this point, you need to cool that thing off.

If you had forged pistons you could run a little closer to the edge of detonation but most "good" tuners will err on the side of caution and have the computer pull a lot of timing when the air heats up. If you install a top end kit you won't realize it's full potential because again, the computer is just pulling all the timing out of it.

InMyPrimeSVT · Jul 16, 2012

Hmmm....me thinks I better start educating myself before I make any big purchases.

InMyPrimeSVT · Jul 16, 2012

On a side note, I now have a broken interior panel. Can anyone tell me where to find a replacement? I looked at 50resto, cjpony.View attachment 146691

Forced Induction Vortech V3-si On 1994 Cobra

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