Getting ready for dyno day
#1
SFC
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Getting ready for dyno day
This Thread is about the next stage of my RX8 and to get opinions from my fellow 8 owners . This post will be updated should there be any changes.
RX8: 2004 AT Greddy Turbo (See full modifications here)
Reason:
1. Poor performance in Fuel Injectors and Fuel Pump during the DYNO tune.
2. Cooling was horrible due to 1 Oil Cooler and lack of CAI.
3. Jeff only got it to get to 183 HP, 172 TRQ)
Fixes:
1. Additional oil cooler
2. Better radiator
3. Upgrade fuel pump
4. Upgrade fuel injectors
Current Status:
8-31-2010 I had KDR install a heat wrap/shield under RP Mid Pipe do to excess heat. During the DYNO water temperatures were reading almost 226+ for one pull and returning home I found out my transmission wires were starting to melt.
Note: KDR, or KD Rotary Performance is now called Speed 1.
Engine Bay Currently:
Current Add-Ons Coming:
- Razor ViS Carbon Fiber Hood
Engine Option 1 – Better (Cheap)
1. Koyo Cooling Radiator $160
2. Walbro Performance Fuel Pump $100
3. Oil Cooler, Possibly OEM else another brand.
4. Upgraded Fuel Injectors ??? Any thoughts of which one to add to a 4 Port AT??
Engine Option 2 – Besterest (Costly)
BHR Ignition System $480
BHR Fuel Pump $460
BHR Radiator $660
AEM CAI
Upgraded Fuel Injectors (See Option 1)
Battery Relocated to Trunk
Oil Catch Can moved next to window washer fluid.
Intercooler mounted where battery
RX8: 2004 AT Greddy Turbo (See full modifications here)
Reason:
1. Poor performance in Fuel Injectors and Fuel Pump during the DYNO tune.
2. Cooling was horrible due to 1 Oil Cooler and lack of CAI.
3. Jeff only got it to get to 183 HP, 172 TRQ)
Fixes:
1. Additional oil cooler
2. Better radiator
3. Upgrade fuel pump
4. Upgrade fuel injectors
Current Status:
8-31-2010 I had KDR install a heat wrap/shield under RP Mid Pipe do to excess heat. During the DYNO water temperatures were reading almost 226+ for one pull and returning home I found out my transmission wires were starting to melt.
Note: KDR, or KD Rotary Performance is now called Speed 1.
Engine Bay Currently:
Current Add-Ons Coming:
- Razor ViS Carbon Fiber Hood
Engine Option 1 – Better (Cheap)
1. Koyo Cooling Radiator $160
2. Walbro Performance Fuel Pump $100
3. Oil Cooler, Possibly OEM else another brand.
4. Upgraded Fuel Injectors ??? Any thoughts of which one to add to a 4 Port AT??
Engine Option 2 – Besterest (Costly)
BHR Ignition System $480
BHR Fuel Pump $460
BHR Radiator $660
AEM CAI
Upgraded Fuel Injectors (See Option 1)
Battery Relocated to Trunk
Oil Catch Can moved next to window washer fluid.
Intercooler mounted where battery
Last edited by markryan22; 09-06-2010 at 07:30 PM. Reason: Added full modifications.
#2
Boosted Kiwi
iTrader: (2)
Before you break the bank how about a little more time spent on diagnoses ...
Are you sure the install is 100% ?
What boost did you see at whp peak ?
How do you know you had poor performance from pump and injectors ?
The stock pump will handle almost double the whp output you made - unless the AT has a different pump to the MT ?
What size are the stock injectors on an AT ? 280/480 would take you to 200whp ish. so I don't think your injectors were a limiting factor.
Still say add another water rad where the 2nd oil cooler would go .
Posting up your dyno would help ...
Are you sure the install is 100% ?
What boost did you see at whp peak ?
How do you know you had poor performance from pump and injectors ?
The stock pump will handle almost double the whp output you made - unless the AT has a different pump to the MT ?
What size are the stock injectors on an AT ? 280/480 would take you to 200whp ish. so I don't think your injectors were a limiting factor.
Still say add another water rad where the 2nd oil cooler would go .
Posting up your dyno would help ...
Last edited by Brettus; 09-06-2010 at 02:13 PM.
#3
SFC
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Pretty sure about the injectors, the pump might just be added to help the load. When Jeff was tuning 183HP/172TOR was the max he could get out of it. He said about the stock injectors could be off by 15% and since it's a 4 port, just one not going to par would hurt.
Cooling on the other hand my water temps have been hitting any where from 200-236, which on the dyno started melting the plastic harnesses that connect to the transmission.... not good.
Cooling on the other hand my water temps have been hitting any where from 200-236, which on the dyno started melting the plastic harnesses that connect to the transmission.... not good.
#4
Pull My Finger
iTrader: (7)
insulate/wrap the transmission lines, is that RP midpipe equipped with a cat? I would steer away from the koyo radiator there isn't too much positive feedback on that radiator..either add a secondary radiator like brettus mentioned or look into the BHR radiator...what coolant water mixture are you running?
#6
Boosted Kiwi
iTrader: (2)
Pretty sure about the injectors, the pump might just be added to help the load. When Jeff was tuning 183HP/172TOR was the max he could get out of it. He said about the stock injectors could be off by 15% and since it's a 4 port, just one not going to par would hurt.
.
.
*fit the pump
*upgrade the secondary injectors
*fit a 2nd water rad - as ronx8 mentioned the stock rad has to cool the tranny as well so a 2nd unobstructed one would be very effective. Just make sure it sees airflow at the dyno or you will be worse off than you are now.
*try again
My gut feeling is that you won't make any more power beacause there will be another issue that you have not found yet . But at least you have the capacity to go higher .
#7
SFC
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insulate/wrap the transmission lines, is that RP midpipe equipped with a cat? I would steer away from the koyo radiator there isn't too much positive feedback on that radiator..either add a secondary radiator like brettus mentioned or look into the BHR radiator...what coolant water mixture are you running?
Coolant water mix = none. I was thinking of trying a AEM Water / Methanol Injection Kit, just wish it wasn't $400.
OK -
*fit the pump
*upgrade the secondary injectors
*fit a 2nd water rad - as ronx8 mentioned the stock rad has to cool the tranny as well so a 2nd unobstructed one would be very effective. Just make sure it sees airflow at the dyno or you will be worse off than you are now.
*try again
My gut feeling is that you won't make any more power because there will be another issue that you have not found yet . But at least you have the capacity to go higher .
*fit the pump
*upgrade the secondary injectors
*fit a 2nd water rad - as ronx8 mentioned the stock rad has to cool the tranny as well so a 2nd unobstructed one would be very effective. Just make sure it sees airflow at the dyno or you will be worse off than you are now.
*try again
My gut feeling is that you won't make any more power because there will be another issue that you have not found yet . But at least you have the capacity to go higher .
#8
Original Turbo 'd Auto !!
This Thread is about the next stage of my RX8 and to get opinions from my fellow 8 owners . This post will be updated should there be any changes.
RX8: 2004 AT Greddy Turbo (See full modifications here)
Reason:
1. Poor performance in Fuel Injectors and Fuel Pump during the DYNO tune.
2. Cooling was horrible due to 1 Oil Cooler and lack of CAI.
3. Jeff only got it to get to 183 HP, 172 TRQ)
Fixes:
1. Additional oil cooler
2. Better radiator
3. Upgrade fuel pump
4. Upgrade fuel injectors
Current Status:
8-31-2010 I had KDR install a heat wrap/shield under RP Mid Pipe do to excess heat. During the DYNO water temperatures were reading almost 226+ for one pull and returning home I found out my transmission wires were starting to melt.
RX8: 2004 AT Greddy Turbo (See full modifications here)
Reason:
1. Poor performance in Fuel Injectors and Fuel Pump during the DYNO tune.
2. Cooling was horrible due to 1 Oil Cooler and lack of CAI.
3. Jeff only got it to get to 183 HP, 172 TRQ)
Fixes:
1. Additional oil cooler
2. Better radiator
3. Upgrade fuel pump
4. Upgrade fuel injectors
Current Status:
8-31-2010 I had KDR install a heat wrap/shield under RP Mid Pipe do to excess heat. During the DYNO water temperatures were reading almost 226+ for one pull and returning home I found out my transmission wires were starting to melt.
And my cabin floor/Drive shaft Tunnel is cooler afterward.
Current Add-Ons Coming:
- Razor ViS Carbon Fiber Hood
Engine Option 1 – Better (Cheap)
1. Koyo Cooling Radiator $160
2. Walbro Performance Fuel Pump $100
3. Oil Cooler, Possibly OEM else another brand.
4. Upgraded Fuel Injectors ??? Any thoughts of which one to add to a 4 Port AT??
Engine Option 2 – Besterest (Costly)
BHR Ignition System $480
BHR Fuel Pump $460
BHR Radiator $660
AEM CAI
Upgraded Fuel Injectors (See Option 1)
Battery Relocated to Trunk
Oil Catch Can moved next to window washer fluid.
Intercooler mounted where battery
- Razor ViS Carbon Fiber Hood
Engine Option 1 – Better (Cheap)
1. Koyo Cooling Radiator $160
2. Walbro Performance Fuel Pump $100
3. Oil Cooler, Possibly OEM else another brand.
4. Upgraded Fuel Injectors ??? Any thoughts of which one to add to a 4 Port AT??
Engine Option 2 – Besterest (Costly)
BHR Ignition System $480
BHR Fuel Pump $460
BHR Radiator $660
AEM CAI
Upgraded Fuel Injectors (See Option 1)
Battery Relocated to Trunk
Oil Catch Can moved next to window washer fluid.
Intercooler mounted where battery
1. The OEM fuel pump loves to ever heat and drop off in flow and pressure.
Replace it with a Walbro. Or like you have above replace the entire unit.
2. Fuel Injectors: Really have two options to choose.
a. Send the stockers to KG parts. Pay $80 or so buck to upflow the 480's to 8xx plus and have the 280's cleaned and flow matched.
b. OR replace the Secondaries with two 1000cc. I Recommend Injector Dynamics
3. upgrade the Single Oil cooler to a 19 row. Install an second H2O cooler where the second oil cooler would go.
4. BHR AT rad works great for shedding heat. Work better with the Mazmart T-Stat
5. Get rid of that POS Greedy HAI. I was seeing 197+ degree IAT's. That right there will eat your power.
6. The BHR Ign replacement is da shiznit. Really it is. I know the stock coils won't light off 14 month old gas.
+1 !
#9
SFC
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1. The OEM fuel pump loves to ever heat and drop off in flow and pressure.
Replace it with a Walbro. Or like you have above replace the entire unit.
2. Fuel Injectors: Really have two options to choose.
a. Send the stockers to KG parts. Pay $80 or so buck to upflow the 480's to 8xx plus and have the 280's cleaned and flow matched.
b. OR replace the Secondaries with two 1000cc. I Recommend Injector Dynamics
3. upgrade the Single Oil cooler to a 19 row. Install an second H2O cooler where the second oil cooler would go.
4. BHR AT rad works great for shedding heat. Work better with the Mazmart T-Stat
5. Get rid of that POS Greedy HAI. I was seeing 197+ degree IAT's. That right there will eat your power.
6. The BHR Ign replacement is da shiznit. Really it is. I know the stock coils won't light off 14 month old gas.
2. Injectors: Best bet would be the ones for the RX7 correct?
3. I seen some of those oil cooler ebay for like $65, curious if thats for crap one, or a viable option.
4. Pricey but I think it might be a good add-on, deff if I upgrade the turbo like your thread
5. I was going to get a AEM CAI, but curious if I could just build one myself.
6. I do have a Esmeril Racing RX-8 Ignition Upgrade, hopefully it's similar to the BHR
#12
what psi you running @ the manifold? if you're running about 6psi then those are almost the best numbers you'll see with that turbo with the 4port a/t. you gain maybe 7-10 hp with better cooling the the cai.
#13
weeeeeeeeee
iTrader: (12)
The only plus about the AEM kit itself is the MAF tube and the sock. Should be easy to source the sock.
Dave fabricated a couple pipes for me when he did my install and "fitted" an AEM CAI on. If he's comfortable replicating the mount for the MAF it'll probably be a little cheaper in the long run to have him do it. You end up with a couple left over pipes (and likely a little bit of cutting) with the AEM too.
Dave fabricated a couple pipes for me when he did my install and "fitted" an AEM CAI on. If he's comfortable replicating the mount for the MAF it'll probably be a little cheaper in the long run to have him do it. You end up with a couple left over pipes (and likely a little bit of cutting) with the AEM too.
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