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Old 12-11-2007, 11:57 AM   #26
All4bSpinnin
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Jeff,

Does the new STi still have the VF43? Is the exhaust manifold design the same?
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Old 12-11-2007, 11:59 AM   #27
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Cant wait to see how she reacts to mods.
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Old 12-11-2007, 12:07 PM   #28
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subscribed*
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Old 12-11-2007, 12:17 PM   #29
1SIKWRX4U2NV
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...i can't wait to see this thing. I'm hoping for great things, despite the "boycott the 08 sti" band of trolls roaming the boards lately. I think i might just have to start really saving for this thing.
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Old 12-11-2007, 01:06 PM   #30
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Quote:
Originally Posted by PERRINJeff View Post
Nope, its fine, i wasn't really clear about those numbers from our dyno or not. On the Dynapack, most all stock STI's put down 230-240WHP, and 260-270ft-lbs. But most of these were done in 4th gear, and 12 second runs. So if our 2008 STI makes about the same using the higher gear, then if we did it in 4th, it would show a bit more power. Before we go to far with the car, we will try some 4th runs just for fun. The problem is that with stock turbos, and a good IC, and exhaust, the TQ the STI can put out, might over come the holding TQ of the dyno (at really row RPM). Doing 5th gear solves the problem. For us its not about the number, more of the difference from one to another. So its good to keep things as consistent as possible.
So what kind of HP differences should one expect to see between 4th & 5th gear pulls?
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Old 12-11-2007, 01:58 PM   #31
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Quote:
Originally Posted by All4bSpinnin View Post
Jeff,

Does the new STi still have the VF43? Is the exhaust manifold design the same?
Haven't gotten that far. The turbo is different, but not sure of the number. Its a normal WRX type turbo, but i didn't catch the number. The compressor housing doesn't have the huge offset like past STI's.

Quote:
Originally Posted by 1SIKWRX4U2NV View Post
...i can't wait to see this thing. I'm hoping for great things, despite the "boycott the 08 sti" band of trolls roaming the boards lately. I think i might just have to start really saving for this thing.
We are taking pics right now, with the right wheels, and some of the subtle graphics we have planned, i think people will go nuts!

Quote:
Originally Posted by marrenr813 View Post
So what kind of HP differences should one expect to see between 4th & 5th gear pulls?
Not much, say 10 or so. When it comes down to proving a part, or dynoing things back to back, if we changed gears between runs, it throws a wrench in the equation. We are not here to trick people and show HP gains that are not truely there.
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Old 12-11-2007, 02:33 PM   #32
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Quote:
Originally Posted by PERRINJeff View Post
Not much, say 10 or so. When it comes down to proving a part, or dynoing things back to back, if we changed gears between runs, it throws a wrench in the equation. We are not here to trick people and show HP gains that are not truely there.
I hope you do not think I am questioning your integrity in any way. Just curious.
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Old 12-11-2007, 02:38 PM   #33
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This is very exciting, I want the sti!
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Old 12-11-2007, 02:48 PM   #34
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Please find out more information about the stock turbo and injectors when you can. Thanks Perrin
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Old 12-11-2007, 02:49 PM   #35
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Old 12-11-2007, 03:07 PM   #36
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I wonder if the 08 head could be used on the other year STI. That would be awesome especially with avcs now being on the exhaust side.
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Old 12-11-2007, 03:24 PM   #37
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Jeff - Any general thoughts on the new STi compared to previous STi's (handling, ergonomic, power). We're read the magazine reviews, but it'd be nice to hear it from someone in the subbie community.
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Old 12-11-2007, 04:38 PM   #38
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Quote:
Originally Posted by marrenr813 View Post
I hope you do not think I am questioning your integrity in any way. Just curious.
Nope, not at all! I was over explaining as i am sure other people were wondering the same thing.

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Originally Posted by twiSTies View Post
Please find out more information about the stock turbo and injectors when you can. Thanks Perrin
Well so far, there are no numbers in the normal spot. So it will have to come off the car to figure out which one it is.

Quote:
Originally Posted by Shabib67 View Post
I wonder if the 08 head could be used on the other year STI. That would be awesome especially with avcs now being on the exhaust side.
I am 99% sure it can, but to control the other AVCS cam would be tricky. Plus the newer thicker oil pump, and oil lines would be needed. Not sure if its worth doing. But soon we will find out!

Quote:
Originally Posted by DocDetroit View Post
Jeff - Any general thoughts on the new STi compared to previous STi's (handling, ergonomic, power). We're read the magazine reviews, but it'd be nice to hear it from someone in the subbie community.
Lots of thoughts! I am putting together a whole write up on the car in the next couple of days. Compared to the 06 STI, Ergonomics is much better. A quick test drive will sell you on that. Power, seems the same, but smoother. The car overall is smoother than the older STI.

Lots more to come!
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Old 12-11-2007, 04:50 PM   #39
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Quote:
Originally Posted by PERRINJeff View Post
Plus the newer thicker oil pump, and oil lines would be needed. Not sure if its worth doing. But soon we will find out!
Jeff, you're saying it has the 12mm pump? (vs. the old 10mm?)

Means we'll get the 12mm pump in the states now!
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Old 12-11-2007, 05:09 PM   #40
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Congratulations Jeff, I know you guys will have a good time with her..
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Old 12-11-2007, 05:10 PM   #41
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I wonder if it's twinscroll like everyone's speculating from the Road & Track review.
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Old 12-11-2007, 05:11 PM   #42
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Quote:
Originally Posted by PERRINJeff View Post
Nope, not at all! I was over explaining as i am sure other people were won
Lots of thoughts! I am putting together a whole write up on the car in the next couple of days. Compared to the 06 STI, Ergonomics is much better. A quick test drive will sell you on that. Power, seems the same, but smoother. The car overall is smoother than the older STI.

Lots more to come!
This is really what I didn't want to hear. Now I might have to get one..
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Old 12-11-2007, 07:33 PM   #43
sti2relaxxxin
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Subscribed for info on the turbo!!
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Old 12-11-2007, 08:32 PM   #44
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the 08 i dynoed was not twinscroll
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Old 12-11-2007, 08:34 PM   #45
PERRINJeff
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Quote:
Originally Posted by modaddict View Post
Jeff, you're saying it has the 12mm pump? (vs. the old 10mm?)

Means we'll get the 12mm pump in the states now!
You got it! This will be a good upgrade for the non-dual AVCS guys building motors!

Quote:
Originally Posted by methaddict View Post
I wonder if it's twinscroll like everyone's speculating from the Road & Track review.
For 100% its not a twinscroll. It has a normal uppipe, and header. At least normal for the US!

Quote:
Originally Posted by DoctorNick View Post
This is really what I didn't want to hear. Now I might have to get one..
You won't be unhappy about that decision!
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Old 12-11-2007, 08:41 PM   #46
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Quote:
Originally Posted by HB Speed View Post
the 08 i dynoed was not twinscroll
How did it look on the dyno Jon?
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Old 12-11-2007, 08:44 PM   #47
HB Speed
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Quote:
Originally Posted by PowerTrip View Post
How did it look on the dyno Jon?
Looked just like jeff's lol done in 4th though so the # were higher. I liked it the car looks neet but the OEM tuning is HOOOOOOOOOOOOOOOORIBLE. (think 07 sti)
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Old 12-11-2007, 08:54 PM   #48
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Old 12-11-2007, 08:58 PM   #49
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Quote:
Originally Posted by HB Speed View Post
Looked just like jeff's lol done in 4th though so the # were higher. I liked it the car looks neet but the OEM tuning is HOOOOOOOOOOOOOOOORIBLE. (think 07 sti)
Yikes Hopefully the pistons have been beefed up a bit to handle the crappy tune.
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Old 12-11-2007, 09:08 PM   #50
PERRINJeff
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The pistons work fine for 14psi, and some knock. Look at how well they hold in Cali with 91! At least in stock form. Some knock is ok, but lot of knock at high boost, not ok.

Our car had audible knock once and a while. This was the ECU testing the waters for Timing advance. Most people may not hear it driving down the road because of the noise. But on the Dynapack, you can hear everything!
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