My daily driven AI build/dyno thread
04-05-13, 07:55 PM
#76
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Howard and I have talked about this before several times. I saw it on a customer's datalog on a plate-cracking dyno run from 6 years ago. I thought it was a fluke and didn't know what to think of it. I saw it again another time (although I've forgotten where) and then went, "wait a minute there's something to this". The couple of times I cracked plates on my red car's motor I didn't have a datalogger going so I have no idea (and it doesn't help it's the older E6K that only logs 11 samples a sec).
I think it's a backfire in the intake from an odd combustion pattern from what we suspect is instability in the gas/methanol combination coming from using too much methanol. I think the MAP sensor is registering the spike in manifold pressure accurately. Past that, I don't know.
B
I think it's a backfire in the intake from an odd combustion pattern from what we suspect is instability in the gas/methanol combination coming from using too much methanol. I think the MAP sensor is registering the spike in manifold pressure accurately. Past that, I don't know.
B
04-05-13, 10:16 PM
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hey jaggermouth thnx ill keep you in mind definately lets see if it still does the spike, i took the block out which doesnt take much time at all 1hr45min i think lol. the reason for this is before i start school plus a full time job i wanted to do some final upgrades. at first it was only for the cosmo manifold., but then i got talked into refreshing at least all the rotor springs. which i did end up finding an oil ring spring broken and one semi flat corner seal spring which is re-reused 
my idea here is to focus on flow, im currently running 3inch intercooler pipes(3inch core intercooler) my turbo has a 3.5inch outlet so 3.5in intercooler pipes it is and 3.5 core. the outlet of the intercooler will be 4inch pipes to feed my engine. next in line is the TB, i need something that is going to match the size of the 4inch pipe, so i got a wilson racing 105mm tb (you can find it less expensive on amazon than on ebay
) well that plus the lim/uim. i did grind down all humps on the inside of the lim as well. anthying that can bottle neck air. we shall see the difference in power shortly =) oh and maybe there will be something more to add to the list, lets wait and find out 
my idea here is to focus on flow, im currently running 3inch intercooler pipes(3inch core intercooler) my turbo has a 3.5inch outlet so 3.5in intercooler pipes it is and 3.5 core. the outlet of the intercooler will be 4inch pipes to feed my engine. next in line is the TB, i need something that is going to match the size of the 4inch pipe, so i got a wilson racing 105mm tb (you can find it less expensive on amazon than on ebay
) well that plus the lim/uim. i did grind down all humps on the inside of the lim as well. anthying that can bottle neck air. we shall see the difference in power shortly =) oh and maybe there will be something more to add to the list, lets wait and find out
06-19-14, 03:50 PM
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hey jaggermouth thnx ill keep you in mind definately lets see if it still does the spike, i took the block out which doesnt take much time at all 1hr45min i think lol. the reason for this is before i start school plus a full time job i wanted to do some final upgrades. at first it was only for the cosmo manifold., but then i got talked into refreshing at least all the rotor springs. which i did end up finding an oil ring spring broken and one semi flat corner seal spring which is re-reused
my idea here is to focus on flow, im currently running 3inch intercooler pipes(3inch core intercooler) my turbo has a 3.5inch outlet so 3.5in intercooler pipes it is and 3.5 core. the outlet of the intercooler will be 4inch pipes to feed my engine. next in line is the TB, i need something that is going to match the size of the 4inch pipe, so i got a wilson racing 105mm tb (you can find it less expensive on amazon than on ebay) well that plus the lim/uim. i did grind down all humps on the inside of the lim as well. anthying that can bottle neck air. we shall see the difference in power shortly =) oh and maybe there will be something more to add to the list, lets wait and find out
my idea here is to focus on flow, im currently running 3inch intercooler pipes(3inch core intercooler) my turbo has a 3.5inch outlet so 3.5in intercooler pipes it is and 3.5 core. the outlet of the intercooler will be 4inch pipes to feed my engine. next in line is the TB, i need something that is going to match the size of the 4inch pipe, so i got a wilson racing 105mm tb (you can find it less expensive on amazon than on ebay
) well that plus the lim/uim. i did grind down all humps on the inside of the lim as well. anthying that can bottle neck air. we shall see the difference in power shortly =) oh and maybe there will be something more to add to the list, lets wait and find out This new setup difference is the bigger TB. Cosmo intake. Semi pp. And larger street port than before. Along with the bigger intercooler and a bigger back housing for the turbo.
I plan to take it again in winter went temperatures are lower. Would like to raise my Rev limit to 8.5k since the power was still rising. I believe by the way the dyno graph shows there might be another 10-20 whp just by raising my Rev limiter.
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mulcryant
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