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Old 10-22-2011, 11:03 AM   #1
TopSpeed
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Default TopSpeed - 2011 Sti - 11.3@124.5mph - Stock tmic, Dom 1.5, E85

Last night we were finally able to break away from our busy shop schedule and get our TopSpeed Motorsports 2011 Project Sti to the drag strip. Even with less then ideal track conditions we came away with some runs.

Our main goal all along with this TopSpeed Project has been to follow the K.I.S.S principal. Keep It Simple Stupid. No exotic ported heads, sleeved blocks, JDM cams.... etc. We wanted to build this one around a very mild well behaved setup. One that doesn't break the bank so to speak, but lays down exotic car numbers. Hard to argue with numbers like this that we have exceeded our goal.

TopSpeed has done the following mods:
TSM SS1 shortblock
Invidia EQL race header
Invidia catted downpipe
Invidia catback
Blouch Dom1.5 (10cm)
ID1000cc
Walbro 390
Inlet hose
Cobb APv2
TopSpeed E85 Tune
TSM Cai

What we feel is even more impressive about this run is the fact the car is still on the OEM STOCK TMIC, stock heads, cams, and intake manifold w/tgv.

For those video BUFFS


Boost for all the drag passes was limited to 24-25psi at redline do to the TMIC intercooler not being able to support the CFM needed and currently the car makes 443whp and 486tq.



With track temps around 55f last night traction was a big issues. I actually on one run got a 1.63 sixty foot but then spun hard going into third down the track. I really feel this car has a 10 pass in it with better conditions and surely one with a larger TMIC.

Here is the timeslip




Thanks,

Doug
TopSpeed Motorsports
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Old 10-22-2011, 12:32 PM   #2
rexblake
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Very nice!
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Old 10-22-2011, 12:42 PM   #3
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Both the plot and the slip are impressive to say the least. Great job
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Old 10-22-2011, 07:18 PM   #4
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That is an awesome trap speed and e.t. Is there a particular reason you choose to upgrade to a built block but wanted to continue using an oem tmic?
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Old 10-22-2011, 07:23 PM   #5
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Sick! TMIC POWER
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Old 10-22-2011, 09:05 PM   #6
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I have to say this is pretty close to the perfect daily driver on E85.
Are you still on the stock clutch?
I would love to see a bit more work say:
TGV deletes, bigger TMIC, fully coated or wrapped header, up pipe, downpipe, turbo blanket, EWG.
How do you think some headwork would affect this combination? Nothing radical, some bigger valves, mild port work and 262 cams.

I think that would put you over 500whp and torque, and increase top end a bit.
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Old 10-22-2011, 09:33 PM   #7
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Very nice! How are you able to keep fueling up with the ID1000's at that power level on E85?

-- Ed
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Old 10-22-2011, 09:37 PM   #8
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Quote:
Originally Posted by Equilibrium Tuning View Post
Very nice! How are you able to keep fueling up with the ID1000's at that power level on E85?

-- Ed
The walbro390(400?) holds fuel pressure. Id1000s will flow lots of fuel at higher pressures.
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Old 10-22-2011, 09:40 PM   #9
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Is there an aftermarket FPR on this car to bump base pressure?

-- Ed
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Old 10-22-2011, 09:42 PM   #10
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Originally Posted by Equilibrium Tuning View Post
Is there an aftermarket FPR on this car to bump base pressure?

-- Ed
Probably not, but you don't need one to hold pressure up top. You just need a fuel pump that can hold pressure and not drop off.
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Old 10-22-2011, 10:48 PM   #11
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I understand that, but I still find it tough to believe that the ID1000's could flow that much at the stock base pressure.

-- Ed
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Old 10-22-2011, 11:24 PM   #12
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Quote:
Originally Posted by Equilibrium Tuning View Post
I understand that, but I still find it tough to believe that the ID1000's could flow that much at the stock base pressure.

-- Ed
They would be flowing around 1240-1260cc holding 68-70psi to red line. That is plenty of fuel for 450whp on e85
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Old 10-22-2011, 11:51 PM   #13
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Quote:
Originally Posted by Junior2JZ View Post
They would be flowing around 1240-1260cc holding 68-70psi to red line. That is plenty of fuel for 450whp on e85
The relative pressure across the injector doesn't change from base. The best you can hope for is for a consistent relative pressure across the rpm range.

-- Ed
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Old 10-23-2011, 12:27 AM   #14
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Quote:
Originally Posted by Equilibrium Tuning View Post
The relative pressure across the injector doesn't change from base. The best you can hope for is for a consistent relative pressure across the rpm range.

-- Ed
Exactly what I am saying. The id1000s will flow 1240-1260cc with 68-70psi pressure. The walbro400 can sustain that pressure across the rpm range while the other smaller pumps drop to 55 and reduce the injector flow over 100cc.
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Old 10-23-2011, 12:46 AM   #15
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Quote:
Originally Posted by Junior2JZ View Post
Exactly what I am saying. The id1000s will flow 1240-1260cc with 68-70psi pressure. The walbro400 can sustain that pressure across the rpm range while the other smaller pumps drop to 55 and reduce the injector flow over 100cc.
You're not getting it. The pressure across the injector doesn't change from static. As far as the injector is concerned its always seeing a relative pressure of ~3bar. At 3bar the ID1000's flow less than 1000cc.

-- Ed
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Old 10-23-2011, 01:11 AM   #16
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Quote:
Originally Posted by Equilibrium Tuning View Post
You're not getting it. The pressure across the injector doesn't change from static. As far as the injector is concerned its always seeing a relative pressure of ~3bar. At 3bar the ID1000's flow less than 1000cc.

-- Ed
You know that fuel pressure rises right? How does the pressure stay at 43 when you put 25psi of boost into the manifold, it is a rising rate system... Rail pressure shoots to around 68-70psi, so now your injectors are seeing 70psi and have a flow capability of 1250+cc.
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Old 10-23-2011, 01:54 AM   #17
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Quote:
Originally Posted by Junior2JZ View Post
You know that fuel pressure rises right? How does the pressure stay at 43 when you put 25psi of boost into the manifold, it is a rising rate system... Rail pressure shoots to around 68-70psi, so now your injectors are seeing 70psi and have a flow capability of 1250+cc.
Jr. When the fuel pressure rises so does the boost pressure. This is done at an equal 1/1 ratio so the relative fuel pressure doesn't change. The whole concept is to keep fuel pressure rising at the same rate as manifold pressure. The injectors won't flow more because they are having to work against the boost pressure.

Ed. 55 psi base pressure.

Posted from my phone so sorry if its a bit off

Doug

Last edited by TopSpeed; 10-23-2011 at 02:04 AM.
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Old 10-23-2011, 02:57 AM   #18
Equilibrium Tuning
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Quote:
Originally Posted by TopSpeed View Post
Jr. When the fuel pressure rises so does the boost pressure. This is done at an equal 1/1 ratio so the relative fuel pressure doesn't change. The whole concept is to keep fuel pressure rising at the same rate as manifold pressure. The injectors won't flow more because they are having to work against the boost pressure.

Ed. 55 psi base pressure.

Posted from my phone so sorry if its a bit off

Doug
Thanks Doug.

I was trying to explain but did not word it clearly enough aparantly. The only way relative fuel pressure can rise is if the pump is over running the FPR or if you're using an RRFPR (rising rate fuel pressure regulator).

So are you running an aftermarket FPR to bump pressure or did you modify the stocker?

-- Ed
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Old 10-23-2011, 02:59 AM   #19
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Quote:
Originally Posted by Junior2JZ View Post
You know that fuel pressure rises right? How does the pressure stay at 43 when you put 25psi of boost into the manifold, it is a rising rate system... Rail pressure shoots to around 68-70psi, so now your injectors are seeing 70psi and have a flow capability of 1250+cc.
It's actually not a rising rate system. It's a 1:1 system. For every psi of manifold pressure, fuel pressure changes by 1psi as well. This maintains a constant relative pressure across the injector.

-- Ed
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Old 10-23-2011, 09:57 AM   #20
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Nice work Doug!

Go corn or go home?
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Old 10-23-2011, 11:49 AM   #21
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hahaha, ok ok I get what you are saying. Just different wording, but same concept.
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Old 10-24-2011, 10:36 AM   #22
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Very nice! 24-25psi, so it seems that turbo really like boost levels in the mid 20s. AFR? Just curious.

Last edited by tazswing; 10-24-2011 at 11:35 AM.
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Old 10-24-2011, 10:54 AM   #23
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Quote:
Originally Posted by Equilibrium Tuning View Post
Thanks Doug.

I was trying to explain but did not word it clearly enough aparantly. The only way relative fuel pressure can rise is if the pump is over running the FPR or if you're using an RRFPR (rising rate fuel pressure regulator).

So are you running an aftermarket FPR to bump pressure or did you modify the stocker?

-- Ed


Its a stock modded FPR on this car. We have seen issues with the 2011 cars needing a FPR, but we are still running the stocker on ours.

~Cicio

Last edited by TopSpeed; 10-24-2011 at 02:26 PM.
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Old 10-24-2011, 11:20 AM   #24
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omg this is sick... what would make it even more sick if it was a 2011 WRX

love your work, cant wait to see what it does on an upgraded tmic...
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Old 10-24-2011, 12:03 PM   #25
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Wow! Maybe I missed it but what does the car weigh?
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