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Old 01-10-2013, 06:25 PM   #251
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What kind of mods did you buy to get 500 RWHP?!
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Old 01-10-2013, 06:37 PM   #252
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Okay, I've updated the post in the LFX dyno thread. We have several pulls now (>25) and it is consistently hitting that 500-502 RWHP on 60% duty cycle for the boost controller (between 15 and 16 psi). On their dyno, STD seems to read the closest to what you expect based on stock flywheel numbers and correcting for loss, but hey I'm happy with the SAE numbers. This should go up a bit when we start putting some vacuum to it (running no vacuum at all right now).

The E85 tune is probably going to be a bust. The ZL1 pump looks like it is having no problems keeping up, but the good ol' HPFP can't do it. Even running 9 psi we can't keep the fuel rail pressure up. So, on to the next steps.

1) Finish the crankcase evac system and finalize the 93 octane tune
2) A race gas tune
3) Alignment so she'll squat and go again
4) Street tune to make sure we don't have boost spikes, shift points are good and no power being pulled with a hard lauch.

She's almost there folks.

Take a bit of time to think about this. We doubled the HP (and probably the TQ as well) without head work or a cam. Most of the rotating assembly is stock, and we aren't close to maxing the turbos out. We may be close to maxing the HPFP out, though. The tune is pretty conservative. Aaron even put some mics on the block and listened for knock and there was none. It can probably take some more timing without issue. It will definitely take some more on race gas.
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647 RWHP & 726 RWTQ @18.5 psi on 93 Octane (locked converter)
1/8 mile -- 7.158 @ 102.10 (20psi); old build
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Old 01-10-2013, 06:38 PM   #253
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Quote:
Originally Posted by simt3k View Post
What kind of mods did you buy to get 500 RWHP?!
The mod list is in the orange part of my signature line.
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647 RWHP & 726 RWTQ @18.5 psi on 93 Octane (locked converter)
1/8 mile -- 7.158 @ 102.10 (20psi); old build
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Old 01-10-2013, 06:47 PM   #254
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I have never heard of EFR twin turbos, is your car an automatic with ss diff+ gears?
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Old 01-10-2013, 06:50 PM   #255
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I have never heard of EFR twin turbos, is your car an automatic with ss diff+ gears?
EFR are the new line of turbos from Borg Warner. Yes, I have the SS diff and 3.45 gears. The tranny is the 6L50 from my 2010 with a 3200 stall torque converter.
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647 RWHP & 726 RWTQ @18.5 psi on 93 Octane (locked converter)
1/8 mile -- 7.158 @ 102.10 (20psi); old build
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Old 01-10-2013, 06:51 PM   #256
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EFR are the new line of turbos from Borg Warner. Yes, I have the SS diff and 3.45 gears. The tranny is the 6L50 from my 2010 with a 3200 stall torque converter.
Does the 3200 stall torque converter work like launch control? And I assume the twin turbo kit is from RX?
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Old 01-10-2013, 07:02 PM   #257
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Does the 3200 stall torque converter work like launch control? And I assume the twin turbo kit is from RX?
No, nothing like launch control. Every automatic transmission has a torque converter. It allows the input side (engine) and output side (driveshaft) to operate at different RPMs without building up too much fluid heat from friction. They transmission only locks up once the two are near the same speed. A side benefit of this mechanism is it can multiply torque (hence the name). You can manipulate the "looseness" of the converter to allow it to multiply torque and delay lock until different RPMs. So a 3200 stall converter will will lock up later than a 2200 stall and earlier than a 4200. You can use this in drag racing to get your engine speed up into a desireable powerband and launch like a rocket. If you have turbos, this really helps a lot because, even though this turbos spool quickly, by 3200 RPMs they are making more boost than at say 2000 RPM. If you can put the power to the ground, then you can have a really good 60'.
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647 RWHP & 726 RWTQ @18.5 psi on 93 Octane (locked converter)
1/8 mile -- 7.158 @ 102.10 (20psi); old build
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Old 01-10-2013, 07:07 PM   #258
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The converter is in and the dyno pull numbers are unlocked! Is his a single or triple disk?
It is a single, but is a purpose built unit, not a restalled weak stocker....but with that power we should build him a triple disc. Let me know.

Also, lets try and source the new LT1 HPDI pump. The diagrams I have seen appear to be driven the same 3 lobe off the cam, and as long as you could adpat it (I'm sure the skills you have shown would be doable) as it supports 600 plus hp (and rumored to support 700 plus).

I am confidant the injectors are up to the job....just the HPDI pump.

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Does the 3200 stall torque converter work like launch control? And I assume the twin turbo kit is from RX?
The 3200-3600 stall is more like having a manual and dumping the clutch, but only when you put your foot in it, otherwise it drives near stock and still will get great fuel economy on the interstate when locked.

The 500 rwhp unlocked is probably 550 plus locked, but that is hard on a converter on the dyno.

The system was the RX LLT EFR system before, and it appears much has been resued and adapted to the LFX...but Aaron and the crew have done an awesome job making it better than the old original from over 2 years ago (Gretchen was the first TT that could be driven 1000 trouble free miles at the time) and the current systems are much improved..like the SC systems.

The EFR's are what all the indy cars are standardized with...amazing new technology, but pricey.

You guys have done an amazing job Aaron!!! This car will be the king of all right now. Cant wait to see it on the 1/4 mile!

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Old 01-10-2013, 07:09 PM   #259
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Derrek, edit your sig w/the new #'s!!!
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Old 01-10-2013, 07:14 PM   #260
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Derek congratulations on the new build :w00t
500+HP very nice I just may have to look into upping my shot only time will tell good luck and hope to see you on the track.
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Old 01-10-2013, 07:18 PM   #261
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Derrek, edit your sig w/the new #'s!!!
They are in the orange part of the sig. Went with the SAE values so we don't get a bunch of people filling the thread up with arguments on which one is right. Personally, don't care because we know it's making 500+. Real test will come at the track...nothing open around here right now, but Memphis will probably be open in March.
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647 RWHP & 726 RWTQ @18.5 psi on 93 Octane (locked converter)
1/8 mile -- 7.158 @ 102.10 (20psi); old build
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Old 01-10-2013, 07:19 PM   #262
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Derek congratulations on the new build :w00t
500+HP very nice I just may have to look into upping my shot only time will tell good luck and hope to see you on the track.
Thanks man. When you going to fill us in on the "extra" stuff you did when replacing the differential?
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647 RWHP & 726 RWTQ @18.5 psi on 93 Octane (locked converter)
1/8 mile -- 7.158 @ 102.10 (20psi); old build
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Old 01-10-2013, 07:27 PM   #263
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Do the Jannetty diff clutch pak mod....we do it on most of the gear changes as most of the stock ones are already looking worn even with low miles. Inexpensive and worth it.

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Old 01-10-2013, 07:30 PM   #264
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Thanks man. When you going to fill us in on the "extra" stuff you did when replacing the differential?
All stock still
Q
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Old 01-10-2013, 07:33 PM   #265
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All stock still
Q
Mine too!
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647 RWHP & 726 RWTQ @18.5 psi on 93 Octane (locked converter)
1/8 mile -- 7.158 @ 102.10 (20psi); old build
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Old 01-10-2013, 08:48 PM   #266
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Originally Posted by SC2150 View Post
It is a single, but is a purpose built unit, not a restalled weak stocker....but with that power we should build him a triple disc. Let me know.

Also, lets try and source the new LT1 HPDI pump. The diagrams I have seen appear to be driven the same 3 lobe off the cam, and as long as you could adpat it (I'm sure the skills you have shown would be doable) as it supports 600 plus hp (and rumored to support 700 plus).

I am confidant the injectors are up to the job....just the HPDI pump.



The 3200-3600 stall is more like having a manual and dumping the clutch, but only when you put your foot in it, otherwise it drives near stock and still will get great fuel economy on the interstate when locked.

The 500 rwhp unlocked is probably 550 plus locked, but that is hard on a converter on the dyno.

The system was the RX LLT EFR system before, and it appears much has been resued and adapted to the LFX...but Aaron and the crew have done an awesome job making it better than the old original from over 2 years ago (Gretchen was the first TT that could be driven 1000 trouble free miles at the time) and the current systems are much improved..like the SC systems.

The EFR's are what all the indy cars are standardized with...amazing new technology, but pricey.

You guys have done an amazing job Aaron!!! This car will be the king of all right now. Cant wait to see it on the 1/4 mile!

I think the injectors are up to it as well. Logging with the e85, they were only at 12 ms pulse width when the pump maxed.

Tomorrow brings 101 octane (everywhere was out of 109) and some updated numbers. We want Derrick to have an aggressive 93 octane tune for the track, a mild street setup, and an Ill rip your face off and laugh race gas tune.
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Old 01-10-2013, 10:50 PM   #267
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Come on March!!!!!!!!!!!

So the "mild" street tune....what kind of power are we looking at there? I know Derrick talked about it a little above, but will it basically be slightly less overall boost?
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Old 01-10-2013, 10:56 PM   #268
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Come on March!!!!!!!!!!!

So the "mild" street tune....what kind of power are we looking at there? I know Derrick talked about it a little above, but will it basically be slightly less overall boost?
Basically, yes. We can lower the boost a bit without it going rich, so if we want to run only 10 psi it will take a separate tune. Not sure what that tune will be at this point or what boost we will be on the track-ready 93 octane tune either. Time will tell.
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647 RWHP & 726 RWTQ @18.5 psi on 93 Octane (locked converter)
1/8 mile -- 7.158 @ 102.10 (20psi); old build
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Old 01-10-2013, 11:52 PM   #269
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Congrads Gretch.. Sounds like you are well on your way there.
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Old 01-11-2013, 06:48 AM   #270
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Congrads Gretch.. Sounds like you are well on your way there.
Thanks. It's coming together quite well.
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647 RWHP & 726 RWTQ @18.5 psi on 93 Octane (locked converter)
1/8 mile -- 7.158 @ 102.10 (20psi); old build
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Old 01-11-2013, 05:07 PM   #271
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Should have another update later today. Made about 10-15 more HP on 101 octane. Looks like we are probably reaching the fuel limits on gas as well. May pick a bit more once we get some vacuum on the crankcase, but for the most part it looks like we've done what we can safely do.
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647 RWHP & 726 RWTQ @18.5 psi on 93 Octane (locked converter)
1/8 mile -- 7.158 @ 102.10 (20psi); old build
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Old 01-11-2013, 05:36 PM   #272
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where the hell do you get 101 Octane? Best I can get here in Canada is 93....

(No E85 fuel here either)
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Old 01-11-2013, 05:44 PM   #273
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where the hell do you get 101 Octane? Best I can get here in Canada is 93....

(No E85 fuel here either)
Most speed/race shops sell it along with methanol.
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647 RWHP & 726 RWTQ @18.5 psi on 93 Octane (locked converter)
1/8 mile -- 7.158 @ 102.10 (20psi); old build
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Old 01-11-2013, 07:31 PM   #274
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Wow great job D, you would've had these great numbers 2+ years ago if the LLT was up to snuff!
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Old 01-12-2013, 05:33 PM   #275
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So really just turbos, fuel pump, and a good tune? The reason you couldnt hit 500 on the LLT was because of the tuning problems? Sorry if these are dumb questions, a lot of stuff to keep up with!
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