RX7 gets dyno tuned today

[Cryptic]

Post your HP / Torque predictions now!

427 LS3:
New GM LS3 aluminum block, 4.125 Scat Crank
Mahle 4.065 bore -7cc flat top pistons (101P31 performance stroker pistons, 1.045 comp height I think)

Oliver 6.067 Rods, Clevite bearings, PRC ported oil pump, Roll Master timing chain, Comp cam,
Newest PRC LS3/L92 heads decked .020" cnc'd and then hand polished, TSP dual springs, Standard new LS3 valves, hardened push rods, Yella Terra Rockers, LS7 lifters and trays, ATI harmonic balancer

Comp Cam specs = 243/259 .624/.624 114 LSA

PRC LS3 CNC'd and Hand polished Heads - should be close if not better than:
Lift Intake Exhaust
.200 154 115
.300 223 170
.400 282 198
.500 324 211
.600 351 228
.650 358 232

FAST 102mm Intake & throttle body

1 7/8" long tube headers (3" collectors)

Full Dual 3" exhaust

[BOSS LX]

Compression?

[BOSS LX]

Guessing it is in the 10.5 area. 541rwhp 491rwtq

[Z28Envy]

605 585

[DynoTom]

620 hp 565 trq

[spooln30]

528whp 488wtq

[jakedrew]

505/480

[Want_Notch]

550/490

[jbiscuit]

535hp/510 trq

[JC70SS]

Guessing it is in the 10.5 area. 541rwhp 491rwtq

This

[VroomPshhTsi]

555/515

[-stew-]

TPIR rules? 1/1

[Cryptic]

2/2 then... winning!

[nismodave]

490/450

[BAD LS1]

Ill be conservative and say 515 and 475tq

[bikedad]

525/485

[Car Guy]

497/462.



TPIR rules?

I bid one dollar.

[Nickerz]

Its almost a crime if you don't spray it too ;)

[twicks69]

Uncorrected, 551whp/509tq, dynojet SAE corrected, 573whp/520tq, smoothing 0.

566whp/514tq, smoothing 3, SAE.

I am assuming you are using the dynojet at late model throttle?

Tim Zimmer - TMZ Performance
Sent from Evo Phone via Tapatalk2

[Prince Valiant]

534hp @ 7000rpm/480 @ 4800-5000rpm.

[WhatsADSM]

Good luck with the dyno - sounds like you can see the light at the end of the tunnel!

As for the numbers 530/490.

[Waver]

Uncorrected, 551whp/509tq, dynojet SAE corrected, 573whp/520tq, smoothing 0.

566whp/514tq, smoothing 3, SAE.

I am assuming you are using the dynojet at late model throttle?

Tim Zimmer - TMZ Performance
Sent from Evo Phone via Tapatalk2

This

[Irish]

542/515

[silververt]

575/510

[flyin_blue_egg]

585/530...Good luck. I know a lot of us have been following this project for years. Nice to see that you're almost done. :)

[Cryptic]

With the information I have about the long block I believe my compression is 10.5:1. I'm not 100% sure on the head gasket thickness or chamber #cc's (it's either 70 or 65). Reasonable sure the piston compression height is 1.045 unless there was something custom done. Which could send my compression up to 11.5:1 if its 1.105 instead of 1.045.

I have a call into Don Hardy Race cars to see if they documented more details than I was given.

I'll be dyno tuning at West Bend Dyno on their Mustang MD 500 Eddy Current Chassis Dyno

[lilws6]

543hp/497trq :) good luck on the dyno that place is the shiz!

[Cryptic]

No final HP/TQ #s.

First... there was a fire... F'n plastic wrap inbetween the header primaries, near the collector. Scared the shit out of us, but there was no damage. Just plastic from packing of the headers stuck deep between the pipes.

That, and my Lingenfelter 58X to 24X conversion module dies after 5 minutes. Unplug the battery for 5 minutes and it works again. WTF! I'm going to have to try again once this gets sorted out.

I called it too..
http://www.norotors.com/index.php?topic=11017.msg157150#msg157150


Makes me wonder what can of worms is in store for me using a Lingenfelter TRG-001A 58x-24x Crank Sensor Trigger Conversion Module. We'll find out Tuesday when I finally get a tune.



We got half way through the tune. Idles great at 850 and has good manners. We only got the car up to 3500 rpm before the module kept crapping out after 5 or so minutes. We didn't want anything dieing in the middle of a WOT pull. So we called it quits.

[Cryptic]

So I called Lingenfelter support and explained the symptoms. They said earlier models of the TRG-001A would draw too much power from the PCM and overheat it and it would shutdown. So when I hit the main breaker (which I am so glad I installed) and killed power to whole car and gave it 5 minutes the PCM was cool enough and everything would work again.

I asked Lingenfelter what recourse do I have. They said they would swap out the TRG-001A for a TRG-002 if it was indeed one of the earlier models which can be identified by some numbers on the back of it. So I'll email those numbers to them tonight. Hopefully I do have one that is old enough and Lingenfelter will take care of me. Otherwise I am out another $260 bucks.



More info on the same:
http://ls1tech.com/forums/15034254-post4.html


We have several hundred vehicles on the road and on the race track using our TRG 58x to 24x signal conversion modules. The product has been available since 2008 so some of these vehicles have been on the road for nearly 3 years.

We did have a tolerance stack up problem on the earlier versions of our TRG-002 (and its predecessor the TRG-001) where heat build up would cause a no start condition on some vehicles under certain conditions. It took a lot of testing to figure out what was going on. Customers would send the units back and we would test them in the engine dynamometer cell on an engine or on our electronic simulator bench and nothing would be wrong with the unit. We finally were able to determine that the heat was increasing the circuit resistance just enough that on some vehicles the factory ECM, that monitors the current level on the camshaft and crankshaft sensor circuits, was shutting off those inputs due to the increased current draw. One of the changes made to help eliminate this problem is that the newer versions of the TRG-002 have a stand alone power connection so the ECM is not responsible for supplying the power for the TRG or to the camshaft and crankshaft sensors anymore.

We have designed the TRG-002 with all automotive temperature grade components and we stand behind the product with a 1 year replacement warranty.

[Cryptic]

The failed TRG-001A - skip to 1 minute

http://www.youtube.com/watch?v=6WHIuC14F44&t=1m0s#ws


The header fire.

http://www.youtube.com/watch?v=3IHV40QjddA#ws

[srt4eh]

disappointing...but at least no damage :)

[BigSnailBuick]

Better a $200 part than a $2000 part :D

[Cryptic]

Better a $200 part than a $2000 part :D

no doubt... still might be covered by Lingenfelter.... we'll see.

[Holeshot]

Im gonna say 507/ 472 @5200

[*SNOOP*]

520/480

[awsomeears]

was waiting for danger to manifold...............

Engine looks tight in there, holly shit !

[Cryptic]

Good news... Lingenfelter came through. They are sending me a new TRG-002 to replace the failed TRG-001A. Mine was from batch "E". They ran it through their tests and verified it indeed has the issue of drawing too much amperage from the PCM.

So I'll be back up and running in a few days! SWEEEEEEEEET!

[JOHN 86GT]

Very cool build !

[Ricky Bobby]

now hurry up and get that shit tuned lol

[Bobby "Big Daddy" Flay]

now hurry up and get that shit tuned lol

word

[Josepy]

Awesome andy.

Sent from my SCH-I500 using Tapatalk 2

[Irish]

http://img.tapatalk.com/c6e4e3ac-9912-4a5a.jpg

"I love it when a plan comes together!"

[OxmanWI]

505/497

[WhatsADSM]

Nice. Keep us posted once you get it back on the dyno!

[*SNOOP*]

Updates?

[Cryptic]

Updates?

I'm waiting on Tom to free up some time. I'm ready to go.

I posted pics of the TRG-002 swap in my pic thread.
http://www.brewcitymuscle.com/forum/showthread.php?44255-My-427-LS3-and-parts&p=734995&viewfull=1#post734995

[JC70SS]

Well Andy, not to put any pressure on you, but I made 501.5 rwhp on my LQ9 402. I am pretty damn happy!

[*SNOOP*]

Yeah, Tom is a BUSY man... It should be a monster!!

[Cryptic]

So if you haven't heard already, we didn't finish the dyno tune. We got up to 4000 RPM (and made 400hp) before we noticed a erratic fuel pressure issue. Adding fuel to the tune was not bringing the O2's up. So we stopped the tune.

The fuel pressure would NOT stay a constant 60psi. It was erratic at idle and really bad under load. It only had a -6AN crossover and -6AN T connected at the rear of the fuel rails. I added a -8AN crossover across the front of the fuel rails and I think I stabilized the fuel pressure. Reads a solid 62psi (gained 2psi??) at idle. I originally had it on there but took it off because of hood clearance issues. Rev'd it to 4500 (no load) and its rock steady, which means it was time for a test with load... which means I have to take it to the streets!!!
:dance:3gears: :shades

At 6000 RPM I can still see it dip. Not sure if this is acceptable amount or not right now. I can't stay in it for very long because before I now it, I'm doing mach 9 down the road. :stare


http://www.youtube.com/watch?v=TXMtmLajf-Q&hd=1#ws

Watch in 1080 go to youtube site and change resolution.
http://www.youtube.com/watch?v=TXMtmLajf-Q&hd=1#ws


Opinions? Is this dip in fuel pressure acceptable? I might have to switch my line from the tank to -8AN.

[BadAzzGTA89]

So if you haven't heard already, we didn't finish the dyno tune. We got up to 4000 RPM (and made 400hp) before we noticed a erratic fuel pressure issue. Adding fuel to the tune was not bringing the O2's up. So we stopped the tune.

The fuel pressure would NOT stay a constant 60psi. It was erratic at idle and really bad under load. It only had a -6AN crossover and -6AN T connected at the rear of the fuel rails. I added a -8AN crossover across the front of the fuel rails and I think I stabilized the fuel pressure. Reads a solid 62psi (gained 2psi??) at idle. I originally had it on there but took it off because of hood clearance issues. Rev'd it to 4500 (no load) and its rock steady, which means it was time for a test with load... which means I have to take it to the streets!!!
:dance:3gears: :shades

At 6000 RPM I can still see it dip. Not sure if this is acceptable amount or not right now. I can't stay in it for very long because before I now it, I'm doing mach 9 down the road. :stare


http://www.youtube.com/watch?v=TXMtmLajf-Q&hd=1#ws

Watch in 1080 go to youtube site and change resolution.
http://www.youtube.com/watch?v=TXMtmLajf-Q&hd=1#ws


Opinions? Is this dip in fuel pressure acceptable? I might have to switch my line from the tank to -8AN.

That is just HOTT godd job!!!

[HITMAN]

Opinions? Is this dip in fuel pressure acceptable? I might have to switch my line from the tank to -8AN.

Really? Why wouldn't you have just gone with -8AN in the first place? I shouldn't have to tell you this but the fuel system is absolutely the LAST place you should underachieve with, especially since the rest of your build is really nice and it doesn't seem like you spared much in way of expense. What is your fuel pump situation?

[Bobby "Big Daddy" Flay]

Car sounds great.

On a side note, your truck looks quite big compared to the car.

[Cryptic]

Bosch 044 is the pump. I am going to upgrade the wiring and see if it makes an impact. Right now it's off of stock harness.

Sent from my DROID BIONIC using Tapatalk 2

[srt4eh]

Must have been hell for the guy with the camera to hang on to the side of the car while you're flying down the road. Lol...otherwise nice. Maybe more pump?

[Flicktitty]

that pump should be able to support the power. I agree on the wiring, as some of these smaller motor car's don't have enough wiring going to the fuel pump from the factory to support larger pumps.

[turbogarrett]

Bosch 044 is the pump. I am going to upgrade the wiring and see if it makes an impact. Right now it's off of stock harness.

Sent from my DROID BIONIC using Tapatalk 2

I had a similar issue, thought it was my walbro 255 crapping out, swapped in a Bosch 044, no improvement. Ended up being some gunk in my fuel filter, cleaned out the reusable element and all was well.

[nismodave]

as some of these smaller motor car's don't have enough wiring going to the fuel pump from the factory to support larger pumps.

UMRo5XCKddQ

[Cryptic]

Tank is spotless. I cleaned the shit out of it when I upgraded the pump. I double checked that first thing when we discovered the issue. I could also try removing the Earl's inline fuel filter. Maybeit doesnt flow well enough.

[WhatsADSM]

Yea the 044 should have no problem supporting it. Figure i make 380+ roots charged on e85 with an 044 and -6 lines. That's enough for at least 550 on gas. However it is on its own dedicated -14ga circuit.

I would check for any obstructions in the fuel system from a clogged fuel filter, a fitting bottlenecking it down, something stuck in a line, etc.

Also agree with the above that you will want to wire larger wire to the pump to ensure it sees all the voltage it should.

[BadAzzGTA89]

Fuel pump rewire....

[Cryptic]

I just need to install some wiring bulkhead connectors to the pump assembly cap. (purple wire and a ground to pump)
10 gauge wiring. Relay is triggered by stock harness.
https://lh4.googleusercontent.com/-EwYlW9QzG6A/T96_WuxrN9I/AAAAAAAADNE/PyiOz_BJJ1M/s800/2012-06-18_00-34-56_153.jpg

[BAD LS1]

watched that vid in 1080 now and can see the needle placement, i think the wiring fix will make it work to only have a max of 5psi of fluctuation. it looks to be dropping 10 psi now when the demand goes up and all the injectors start moving some volume. Having the pump over clocked by 14+V feeding it will deff give it a head start to keep up with demand. Looks way better than the 40 psi and 13.9 afr's we were seeing as a result.

[Cryptic]

Looks way better than the 40 psi and 13.9 afr's we were seeing as a result.

And that was at 4000rpm. The drop we see now is at 5000-6000rpm (hard to say for sure, I'm doing all I can to keep the car straight).

I'm using an -6AN Earl fuel filter (230106ERL). I am wondering if this is a restriction. Is this a this enough flow without pressure drop?

-Sintered Broze Element 35 microns.
- Fuel flow of 4 to 5 gpm
http://www.skspeed.com/images-dyn/ProductImages/Thumb/E14230208.jpg

[BAD LS1]

Stock feed lines in most cars are roughly the equal to -6 I.d. and ive worked on stuff that supported over 600 at the wheels FI with that system... that would be the last place id go.

[Cryptic]

i think the wiring fix will make it work to only have a max of 5psi of fluctuation. it looks to be dropping 10 psi now when the demand goes up and all the injectors start moving some volume. Having the pump over clocked by 14+V feeding it will deff give it a head start to keep up with demand.

After some more homework I think we are definitely on to something.

Bosch 044 (FP 200)

Delivery rate at 5 bar (72psi) and 22 °C [1] 260 ± 5 l/h
Supply voltage 6 … 16.5 V
Operating voltage 13.8 V
Load current at 5 bar (72psi) and 22 °C [1] = 14 ± 1 Amps


So I need wiring to deliver a solid 15 amps at a minimum 12v.

The stock wiring looks to be maybe 12 or 14 gauge. If it is 12 gauge wiring, it is real shitty 12 awg. It's much more insulation than copper. And that's only on the positive side. It was smaller yet on the ground side.

So at best, with stock wiring, I shouldn't be pushing more than 10amps to the pump. 10 awg will give me extra head room.
http://docs.engineeringtoolbox.com/documents/730/12V_cable_maximum_amps.png

[BAD LS1]

Granted with a pump, it doesnt draw much current except for the initial turn-on, but the faster it spins, the less current it will draw. the only way to make it spin faster is with more voltage and obviously unobstructed flow of current (new 10ga power/ground). Id be willing to bet we might be lucky to see anything north of 12v at the pump in its current configuration. primarily due to the resistance that the stock wiring creates.

Id be curious to know what the voltage is at during that moment in time at the pump and then figure out based off votlage input, what efficency range the pump is within.

[Josepy]

Might have to hit the dyno same night again Andy. Should have my belt slip bs fixed by next week.

[BAD LS1]

Just in time for shit air you guys hahah

[Cryptic]

Id be curious to know what the voltage is at during that moment in time at the pump and then figure out based off votlage input, what efficency range the pump is within.

5 bar is 72 PSI... we are only shooting for 60 PSI, so these graphs should give us an idea.

https://lh3.googleusercontent.com/-Fgrinya05d8/T997Rd96ZzI/AAAAAAAADN0/5EJfwA7H6Fs/s800/Bosch-1.jpg

https://lh3.googleusercontent.com/-nPejH2VamtY/T997ReciIcI/AAAAAAAADN8/iV2BUInVIY4/s800/Bosch-2.jpg

[Cryptic]

Might have to hit the dyno same night again Andy. Should have my belt slip bs fixed by next week.

I'm going to move on to other aspects of the car. The car is drivable. I'm going to finish paint and get the interior buttoned up. Next time I hit the dyno the car should be pretty much done. Proper wheels too. My god 225's are scary with all this power.

[Josepy]

Just in time for shit air you guys hahah

I would be waiting for a cooler night.

[Korndogg]

you don't want 92 degree air???

rofl

[Cryptic]

you don't want 92 degree air???

rofl

and of course that... Which reminds me...

-Get A/C system filled

[BAD LS1]

and of course that... Which reminds me...

-Get A/C system filled

good plan - i need to test idle qaulity with the ac working.