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  #61  
Old 06-06-2007, 06:55 PM
XT6Wagon XT6Wagon is offline
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I thought Tom's car only had 250whp last time on the dyno?

Anyhoo, This may seem counter to common knowledge but turbo cars can and usualy do have stronger lowend or midrange while on boost, and they don't use crankhp to create the boost. I've seen 440? ft-lbs on a STi at 3,400rpm when I backed off as the front end was making a beeline for the side of the dyno as the front diff got to working. Of course superchargers win on other things so turbo vs supercharger is about tradeoffs.

Let us also not forget that the 6spd is SLOWING his drag times. It eats 15more WHP than a 5spd. It has horrid gear spacing for drag racing. Even worse without a DCCD controler you have an open center diff, which makes for very limited traction given that the car was designed around the front wheels keeping 1/2 the power.

Anyhoo the 3000GT is a bit faster on paper, with *gasp* full oem development, 0 reliablity, and a pricetag that makes a SVX at full MSRP + cost of mods seem damn reasonable.

So to make this a fair comparison, what times are the base FWD 3000GT's running?
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  #62  
Old 06-06-2007, 09:24 PM
Kelvin Kelvin is offline
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Quote:
Originally Posted by NikFu S.
How hard is it to understand the SVX has not had ANY tuning until very recently? This is new ground being covered. You are comparing two cars because they have similar shapes and weight but fail to realize there is a great deal of engineering differences under the surface.

The cars are not alike.

At all.

The eg33 was not designed with FI in mind.

Why don't we compare the SVX to the NA 3S. Which one is faster? Which one is nicer? Which one lasts longer? Thought so.
I really don't care what was designed for what. ECUTUNE advertises their stage 3 as having almost 280hp at the wheels, which means close to 400 at teh crank.

Two cars of similar weight, similar drivetrains, one having 300hp, one having almost 400, the 400hp car should be faster.
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  #63  
Old 06-06-2007, 09:50 PM
alltrac alltrac is offline
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Possible dyno queen???

Quote:
Originally Posted by Kelvin
I really don't care what was designed for what. ECUTUNE advertises their stage 3 as having almost 280hp at the wheels, which means close to 400 at teh crank.

Two cars of similar weight, similar drivetrains, one having 300hp, one having almost 400, the 400hp car should be faster.
This thread has been hijacked. The supercharger started off with a price of $5000 in mind and now it cost 50% more $7500. For the return it delivers it may not be everybody's cup of tea.
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  #64  
Old 06-06-2007, 10:04 PM
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Quote:
Originally Posted by TomsSVX
my n/a 6mt never ran into the 14's so don't try and get wise about what you don't know.

Tom
Oh sorry, Must have been the 5 spd. since you want to be technical. But either way, You ran a 14.5 N/A in a 5 spd. But can only do 13.9 with a S/C 6 spd.??? That's garbage to me for 7500+ dollars no matter what the excuse.
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  #65  
Old 06-06-2007, 10:08 PM
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hmmmmmmmmmmmm.........
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  #66  
Old 06-06-2007, 10:40 PM
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ok... for people who have not been here for a while let me explain

When we dynoed our cars (mikecg and I) we saw the same issue w/ both cars... The power and torque curves fell on their face after 3500rpm... The engine quit making power and began to fall... This is ALL due to the fact that the stock cams were made to keep low and mid-range power up for the low gear ratio in the stock car... Gives the car great power on the highway....

That being said, the 6mt IS slowing me down because I spend all day at 5500rpms and up while I am racing... and I am not making any power there... So that being said, If one were to simply build the heads and use everything else stock... these cams I am using would make a HUGE difference.

Jason, I have set 2 different records with 2 different cars and both are faster than urs... get over it. I spent 6500 on the s/c and 3800 on the 6mt... I am happy with my investment and with an engine to support both... it will be insane fast... Not to mention I got my DCCD controller hooked up but I need a new power source now With a good launch I will be solidly into the 13's... I would love to see ur "road demon" run consecutive 14's on a 75* day.

Anyway... I like the discussion, it is a good read but please keep in mind your knowledge on the subjects before posting #'s... Crank horse means nothing the in the real world... its all about how much u have at the wheels and how much the car weighs...

Tom
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  #67  
Old 06-06-2007, 11:02 PM
XT6Wagon XT6Wagon is offline
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With the DCCD controler, I would assume it could be upto 1/2 a second off of your time. Timeslips looked like you were getting moderately good traction but there shouldn't be any reason that a 1.75 60ft isn't possible and thats a 1/4 second off of your 2.0 60ft run minimum. Some people hold to .1 off the 60ft is equal to .2 off the 1/4 mile, but out of a few hundred timeslips I don't have one run that wasn't .1 to .1 unless I screwed up down track and made the timeslip meaningless.

Tom, If it is declining after 3,500 then its no wonder. Powerband being a mess coupled with a transmission not geared to it... A built auto with stock gear ratios would make more of it given the tall gearing and biased around the low RPM use. Of course better matched doesn't allways mean faster.

Then again the 6spd should shine once you get 2-3K rpm windows of solid HP and torque with a 6 or 7K rpm on the upper end. I'd love to see a 6K launch with say... stock STi rims and tires and a locked DCCD center diff to see just how fast one can be. little to agressive and it tends to spin them, but still grippy as hell with warm tires.

Anyhoo, can't wait to see what cams do for you.
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  #68  
Old 06-06-2007, 11:10 PM
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Quote:
Originally Posted by TomsSVX
Jason, I have set 2 different records with 2 different cars and both are faster than urs... get over it. I spent 6500 on the s/c and 3800 on the 6mt... I am happy with my investment and with an engine to support both... it will be insane fast... Not to mention I got my DCCD controller hooked up but I need a new power source now With a good launch I will be solidly into the 13's... I would love to see ur "road demon" run consecutive 14's on a 75* day.
Tom
Yeah, We'll see how insane fast it is. I set my record with a N/A AUTOMATIC with 135K+ miles on it at the time of the run(153K on the motor with a rod knock) and it only cost me 450 bucks. You spent how much more money and time on your 5 spd. to go .4 seconds faster that I could have pretty much done by simply removing my belts?? Not too mention one missed shift and your mine. Road Demon will run consecutive 14's in 75 degree temps if I want it too, Just as it ran consecutive 14's when I broke the record on a 45-50 degree day. But anyways, Good luck with your $10-15,000 setup. I'll be building my own with my own sources for about a 1/3 of that and smoking you in the process.
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  #69  
Old 06-06-2007, 11:26 PM
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This is just getting stupid.

This is comparing apples to oranges.
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  #70  
Old 06-06-2007, 11:30 PM
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Quote:
Originally Posted by Budfreak
I'll be building my own with my own sources for about a 1/3 of that and smoking you in the process.
Well, you need to put your timeslip where your mouth is.
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  #71  
Old 06-06-2007, 11:54 PM
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Quote:
Originally Posted by ensteele
Well, you need to put your timeslip where your mouth is.
yeah,

*but like those discussion parts*,

and, this thread is getting boring and a reminder of this

http://www.subaru-svx.net/forum/show...ighlight=motor



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  #72  
Old 06-07-2007, 01:01 AM
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Quote:
Originally Posted by ensteele
Well, you need to put your timeslip where your mouth is.
Soon enough my good man, Soon enough. But for now you'll have to just keep looking at my old timeslip of my automatic N/A SVX street record.

BTW, I'll be picking up my supercharger this week.
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  #73  
Old 06-07-2007, 03:57 AM
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Quote:
Originally Posted by Kelvin
That's what I don't understand. The SVX, with the 7500 dollar supercharger kit, and 6spd, makes more power than a 3000GT, yet it's slower than one. I really don't get it.
unless tom has installed the cams on this engine already (i dont believe he has) the engine isnt really making more than a stock 3kgt. before tom was making 240whp and the 3000gt is making closer to 300. this 400hp kit makes 400hp at the engine after 25%+ drivetrain loss is a different story though.
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  #74  
Old 06-07-2007, 05:45 AM
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  #75  
Old 06-07-2007, 07:02 AM
Kelvin Kelvin is offline
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Quote:
Originally Posted by TomsSVX
ok... for people who have not been here for a while let me explain

When we dynoed our cars (mikecg and I) we saw the same issue w/ both cars... The power and torque curves fell on their face after 3500rpm... The engine quit making power and began to fall...
What???



Doesn't seem like it's falling off to me. And wasn't that dyno with stock cams?

I'm not trying to be an internet gangsta Phast, I just don't get it. This car weighs about the same as a 3000GT VR4, and has more power. To me, that means it should be faster.
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