Will I be able to make 490- 500rwhp with what I have?

[Paluka21]

I all, heres the plan, I am trying to pull approx.490- 500rwhp with most of the parts I have now, however there will be some changes.
Currently the car is making 464rwhp with D1SC 9psi, 3 core intercooler, Gt40X heads with 58cc, E303, Magnaflow catback, hooker equal lengths, pro-m75, 65mm throttle body, MSD 6AL, autologic software,and some fuel system parts.
I am planning on having the GT40X heads fully ported, possibly by Ed Curtis or TEA, along with opening up the combustion chambers a little for what I hope to be a half point reduction in compression, add a 70 or 75mm throttle body, match port the lower cobra intake, install a better radiator to keep the car cooler, hopefully around 170ish degrees from the 185 now, and a billet flywheel with the new spec stage III clutch I will be installing.
I am going to keep the same pulley on the blower that I am seeing 9psi with now, so I will probably be seeing around 7psi when its all said and done.
Will I be able to make 490- 500rwhp or gain 25-35rwhp with 7psi, with the heads ported, match ported lower, and a few other small tricks?
thanks
Dan
95 rio red cobra #2021

[SaleenGTS]

You will still be making the 9psi power....porting and more airflow are wierd like that....long story too hard to explain.

I think that if the porting is done right you may see 490. 500 is prolly asking a little much. But I am sure someone here will say you will see 500.

I only picked up about 25 hp when I fully ported my old TW's on a car I used to have. But when you factor in a blower, you should see 30-35

[Paluka21]

Thanks for the reply Dustin. I hope your right, that I will be able to see 490. Well, what I meant about the boost is, I will def. be seeing less than 9psi since I will have everything ported, my guess is I will be seeing around 7, maybe 8 tops. But, I know what you mean about still flowing the 9psi of boost, but basically seeing 7 due to less back pressure.
I guess with you seeing 25hp on a N/A combo with just porting is pretty good! If I got 25 from the port of the heads and intake I'd be happy, then if I can keep the car cooler with a radiator, and step up a size or two on the TB, I should be able to make up the 5-10hp or so.
Also, I was under the impression that a billet flywheel would actually add hp, due to less rotational weight?

Dan

[SaleenGTS]

Lighter flywheels, driveshafts etc... don't actually add hp, because they aren't introducing anything new to the motor like fuel or air. What it actually does is "free" up lost horsepower that wasn't able to be released due to the weight of the iron FW. Just like wih exhaust, rockers, pullies and a fan, you jut free up the hp, not add. Blowers, TB's, Intakes, blowers, Heads and stuff like that are what add hp.

I do know also that the aluminum and billet flywheels warp a lot easier than the iron ones and don't last as long due to less strength in the structural metals.

I think when all is said and done you will see 490. Good Luck

[Skyman]

Why not get a smaller pulley and get it back to 9psi like it used to be? That should definatly get you closer to that 500hp like u wanted...

I dont see you picking up that much with just porting, when your not going to increase the amount of air being forced into the car.


Sky

[302 LX Eric]

Sky brings up a good point: Why not just put on a smaller pulley to get more boost? As I'm sure you know, the D-1SC is a serious piece that can produce 15 psi without breaking a sweat!

As for the flywheel, you may want to look into an aluminum unit (mine weighs 11 lbs. vs. my old stocker which weighed in around 25 lbs!) The driveshaft will net you around 6 lbs. This will help your HP numbers for sure.

Good luck getting 500 - I think you'll be very close. Keep us posted.

E

[Paluka21]

Well, I would u pulley the blower down, however my overall compression of 9.5:1 might not be a good idea, depending on how much porting can get the compression down. Also, I have the car tuned w/ autologic software, more boost would throw the tune off more so than having the heads and intake ported, as confirmed by jim larocca. Also, changing the pulley on the D1SC would probably net me around 40+hp easily, however I need to pull the heads on the car to fix a leaky head gasket, so I am definetly getting them ported while off. My logic is, why not try to work with what I have, esp. since I have a stock bottom end w/ hypeuretic pistons, and stock rails and fuel lines; working with what I have as in boost. Basically I am trying to make more power by just opening things up, which I 'think' I can do by having the heads ported. Even if I wont be making more boost, I should be moving alot more air,,,which would mean more power, does that make sense?
Dan

[1BAD89]

I think switching to a higher flowing intake would net you a noticable gain in hp.

[302 LX Eric]

1BAD89 brings up an excellent point too! (Damn, can't I think of anything today?? )

A better intake should help out your cause. Although, I think porting the heads will help.

Can I ask why you decided to go with the D-1SC instead of the P-1SC? Everytime I speak with Jim LaRocca or any of the guys at ProCharger, they always steer me away from the D-1 saying that for what I want (10 psi) that the P-1SC is fine. Plus, with the radially blade on the P-1, it is more conducive to producing the type of low-end torque that I want - as opposed to the D-1 which packs a helixed blade for higher top-end boost. I'm just curious as what your thoughts are.

Also, did Jim do the tune on Autologic for you? In any case, your Stang is a prime example of how a properly tuned motor with simple bolt-on's can safely produce impressive numbers - even with just 11:1 a/f!!! That's awesome!

E

[Paluka21]

Eric+1bad89,
you guys are right that I definetly would pick up some power with an aftermarket intake: ie. TFS track head, Edelbrock rpm performer etc. however I was planning on keeping the cobra, mainly because of the look of the stock motor, and because I have heard that porting the lower intake would help quite a bit if matched to the heads. I have not cancelled out purchasing another intake, but probably will stick with the ported cobra. ( wanna keep something at least looking origninal in the engine bay )
Yes jim larocca tuned the car. I think it would have made more power if he would have let it cool down. The car was at 180-185 degrees on each run, so it probably had a little more once cooled down. Another thing that is causing it to be rich is the timing, its at 22 degrees advance, or 8 degree base. I told jimmy that I thought I had a small head gasket leak, which it is leaking a small amount under boost, so thats another reason for the conservative tune.
The D1sc, well mainly because I am planning a 306 sportman block with forged internals and running 15psi, probably in the next year. And this is another reason I want the heads and intake fully ported. I am also going w/ a custom blower cam...again this stuff is down the road, a year from now probably. Also the d1sc as claimed by jim L. will produce more power down low, mid and high at the same boost level as the p1sc, mainly because it takes much less to push the lower levels of boost. The d1 also has double bearings which makes it stronger.
I can tell you now that by going with a d1sc you will see PLENTY of low end boost, as I can see 5lbs of boost when cruising at 3000rpms in 3rd gear by just giving it half throttle. When you floor it boost starts coming in around 2500rpms, about 2psi of it, and you can also see about 2lbs of boost in 5th gear by flooring it on the highway at lower rpms. I've had a few vortech guys ride in the car before and they were shocked how low this d1 makes boost. You won't need any lower boost with a blower, cause all you'll do is burn the tires off anyways. When my car is cold and running well, 1/2 throttle in 3rd blows off the tires. Id go w/ the d1 series, as even lower boost numbers with this blower feel strong. btw, the d1sc also comes with smog pump hook up for emissions legality.
ok im done ranting.
good luck w/ the blower choice.
Dan

[blue oval 50h]

I would ditch the heads in favor for some TW or AFR 165's. You will see power gains there.

[SaleenGTS]

You want more power???? Without mssng with pullies???? AFM Powerpipe BABY, that is a power adder. I am getting mine for Christmas. Good Luck

[Paluka21]

Originally posted by SaleenGTS
You want more power???? Without mssng with pullies???? AFM Powerpipe BABY, that is a power adder. I am getting mine for Christmas. Good Luck

Dustin, I dont beleive anderson makes a power pipe for the sn95 prochargers? If they did, I would DEFINETLY be interested, but last I checked they dont. I honestly don't see how I could run one anyway beings how tight the blower fits in the car. I have about 4" of space between the head unit and the shock tower. This means that whatever I ran would have to make a full 90 degree turn in 4 inches, then another full 90 degree turn to the fenderwell.
I would go w/ tfs heads or afrs, however I want to make more w/ what I have w/o changing much. I am trying to keep this combo very simple, yet have a 10 second street car that passes emissions and runs pump gas. And I beleive I can do with with just some minor tweaking of things. I dont think Im far off now from high 10's on slicks, and Im sure not far off from 490-500rwhp.
Dan

[302 LX Eric]

Dan

Thanks for the reply about the D-1SC! You have definately provided some solid real-world experience that will assist me in making my decision between the P-1 and D-1.

I had been leaning towards the D-1 since the beginning due the things that you mentioned above (double bearings, stronger internals, etc.). I'll take 5lbs of boost at 3000 rpms! That is impressive.

Thanks again for the insigthful reply.

Eric

[Paluka21]

eric,
no problem man, glad I could offer some advice on it. I really think you'd be happy with the D1 series, and honestly I personally wouldnt go any other way if I were looking at a ProCharger. As I would buy mine again w/o a doubt
good luck
Dan