I dynoed my C32 today.
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E36M3 race car/Ferrari F355 GTS/1973 Mini 1275GT/Fiat Abarth/ML63/SLK55
I hope I'm wrong, I really do. I tried straight 100 octane on my stage 2 car, and I didn't notice anything significant, so I really doubt that a 100/93 mix will do much, certainly not 30hp.
I'm doing a dyno run with 93 next week. I'll try one with 100 too, but it will be a bit later. I want to put in 100 then drive around for a while to make sure the car really takes full advantage of it.
On my last car (turbo), I noticed about 80hp gain on 100unlead vs 93, and around 190hp gain on C16 vs 93, but that was all gained by advancing the timing on my standalone ecu, and raising the boost from 20psi to 32psi. I did a pull on 100 ocatane using the 93 map, and I gained a few hp, but that was just because I wasn't seeing any detonation.
I'm doing a dyno run with 93 next week. I'll try one with 100 too, but it will be a bit later. I want to put in 100 then drive around for a while to make sure the car really takes full advantage of it.
On my last car (turbo), I noticed about 80hp gain on 100unlead vs 93, and around 190hp gain on C16 vs 93, but that was all gained by advancing the timing on my standalone ecu, and raising the boost from 20psi to 32psi. I did a pull on 100 ocatane using the 93 map, and I gained a few hp, but that was just because I wasn't seeing any detonation.
my comments are based on my seat of the pants reaction to 100 octane in my car. since increasing boost is only going to make more heat my reasoning it that the 100 octame should be more of a benefit. if a stg 2 evosport makes 435 hp on cali 91 octane and the sl55 intake adds 10-15 (440-450hp) then shouldn't 100 octane get to 470?
i'll know by next 4 weeks i should have a full stage 2 + car by then. if you have results of a repeat stg 2 on 93 /100 then do keep me (us) apprized.
btw the evosport headers are on back order i'm still waiting on mine.
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04 C32
i didn't mean to suggest using a 93/100 mix. straight 100 is the best way, however you should purge 93 from tank as completely as possible.
my comments are based on my seat of the pants reaction to 100 octane in my car. since increasing boost is only going to make more heat my reasoning it that the 100 octame should be more of a benefit. if a stg 2 evosport makes 435 hp on cali 91 octane and the sl55 intake adds 10-15 (440-450hp) then shouldn't 100 octane get to 470?
i'll know by next 4 weeks i should have a full stage 2 + car by then. if you have results of a repeat stg 2 on 93 /100 then do keep me (us) apprized.
btw the evosport headers are on back order i'm still waiting on mine.
my comments are based on my seat of the pants reaction to 100 octane in my car. since increasing boost is only going to make more heat my reasoning it that the 100 octame should be more of a benefit. if a stg 2 evosport makes 435 hp on cali 91 octane and the sl55 intake adds 10-15 (440-450hp) then shouldn't 100 octane get to 470?
i'll know by next 4 weeks i should have a full stage 2 + car by then. if you have results of a repeat stg 2 on 93 /100 then do keep me (us) apprized.
btw the evosport headers are on back order i'm still waiting on mine.
Stage 2 already includes the SL55 splitter and pipes. I assume you mean the extra 10-15 are from the SL55 boxes, which stage2 does not include. I don't think they do much. The 10-15 number has always been from 'well, those SHOULD add aboout let say, ten to fifteen hp.' I'm starving for more power, but I won't do the 55 boxes unless someone showes me hard proof that they produce a significant gain.
I'm going to dyno on 93 then 100 regardless. I'm still curious.
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04 C32
Dunno. I want some more power, but I wont use n2o. Renntech said they have nothing for me, Evosport said they might be able to do tb/head work, but only if I transport the car over there.
Cams look good, but I'm not willing to spend $5000+ (part&install) for 15hp
Cams look good, but I'm not willing to spend $5000+ (part&install) for 15hp
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Anybody have a custom front mount intercooler? My kleemann clk55 has a front mount intercooler but its too small. I am looking into a custom one to help with the heat soak issue. I already asked Cory about race gas and he said the max you will see is 10hp because the ECU is tuned for a max of 93 octane (well for me it is). I'm going to try it anyway when I go to the track. It cant hurt.
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C43, SLK32, CLK63 Black Series
I'd suggest a Quaife LSD. You need something to help get all that power to the wheels.
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04 C32
Anybody have a custom front mount intercooler? My kleemann clk55 has a front mount intercooler but its too small. I am looking into a custom one to help with the heat soak issue. I already asked Cory about race gas and he said the max you will see is 10hp because the ECU is tuned for a max of 93 octane (well for me it is). I'm going to try it anyway when I go to the track. It cant hurt.
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You can't use an air/air ic with a C32. I think that the most promising ic upgrade is using a closed loop system with a compressor in the trunk. There is another active thread about this
Ultimately we are limited by the ability of intercooler core to absord the heat and move it out.
My nex step is to increase line sizing from the core and out of the core, to match Johnson's pump outlet/inlet (0.75'' vs. 1.5'').
To get over 400 RWHP - head/cam work is needed. Adding more boost will only increase air charge temperatures.
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04 C32
You are correct there is no economical way to replace water/air with air/air.
Ultimately we are limited by the ability of intercooler core to absord the heat and move it out.
My nex step is to increase line sizing from the core and out of the core, to match Johnson's pump outlet/inlet (0.75'' vs. 1.5'').
To get over 400 RWHP - head/cam work is needed. Adding more boost will only increase air charge temperatures.
Ultimately we are limited by the ability of intercooler core to absord the heat and move it out.
My nex step is to increase line sizing from the core and out of the core, to match Johnson's pump outlet/inlet (0.75'' vs. 1.5'').
To get over 400 RWHP - head/cam work is needed. Adding more boost will only increase air charge temperatures.
Using an external electric cooler with a bigger pump would help BIG time. I want to do it, but I'd rather be the second guy.
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I was talking about just getting a bigger front mount. Not switching from water/air to air/air. I already know air/air wont work on our cars without major modifications. You dont think a bigger intercooler will help prevent heat soak? Although I do see how if it gets hot it would take longer to cool down.
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From: Silicon valley
Audi C7.5 S6
After normal stage2, it is probably best to port and polish the heads and match to the manifold. There some people that rework the positive displacement blowers. Then do the cams. Need to find someone, with experience, who knows how to do the C32 heads properly.
For optimum power output one should get more air volume flowing through the engine, with less loading on the blower. This will actually give you less boost pressure, but more airflow. It will make the blower more efficient, since the total pressure on the outlet is lower. This should also lower the IAT temps.
For optimum power output one should get more air volume flowing through the engine, with less loading on the blower. This will actually give you less boost pressure, but more airflow. It will make the blower more efficient, since the total pressure on the outlet is lower. This should also lower the IAT temps.
Last edited by m444; Sep 28, 2006 at 12:08 PM.
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I was talking about just getting a bigger front mount
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Check my sig, I will switch the bumper from my other car. I think theres plenty of room with that bumper! Oh yea, I was referring to my clk, sorry.
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In that case, than you will have the room to do it.
However, if you are reffering to improving Kleemann system, than it is already very efficient. At only 7 psi there is very little heat produced. Stock Kleemann setup gets close to 90% of efficiency.
However, if you are reffering to improving Kleemann system, than it is already very efficient. At only 7 psi there is very little heat produced. Stock Kleemann setup gets close to 90% of efficiency.
Last edited by Vadim @ FD; Sep 28, 2006 at 03:19 PM.
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E36M3 race car/Ferrari F355 GTS/1973 Mini 1275GT/Fiat Abarth/ML63/SLK55
best case is getting the fluid that circulates around the core to be ambient temp.
i have an oil cooler (that's not connected) on my swift that looks like it coud be fitted to the front of the c32. this, with the evosport split IC cooling(windsheild resevoir) should be of benefit. an upgraded pump could be of benefit as well but not sure it's worth the bother.
also- for NA cars the advantage to using hi test is much less than forced induction. this due to the increased IAT on compression.
i have an oil cooler (that's not connected) on my swift that looks like it coud be fitted to the front of the c32. this, with the evosport split IC cooling(windsheild resevoir) should be of benefit. an upgraded pump could be of benefit as well but not sure it's worth the bother.
also- for NA cars the advantage to using hi test is much less than forced induction. this due to the increased IAT on compression.
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Vadim, clear out your PM box...
do you have any pics and/or the dimensions of the stock C32 intercooler?
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E36M3 race car/Ferrari F355 GTS/1973 Mini 1275GT/Fiat Abarth/ML63/SLK55
