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Generation IV External Engine - LS2 Coil to D585 Truck Coil..

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cowboyup

10-07-2009, 09:15 AM

Any benefit.. or pretty much the same?

I've seen gains going from LS1 coil to truck coil... just wondering if any difference going from LS2 to truck..

davidws6

10-07-2009, 11:39 AM

For what I remember reading a gain from the LS2 > D585's was much less than the jump from LS1 to D585's

mach1

10-14-2009, 05:37 PM

I am also wondering this, I already have ls2 coils, any need to go to the D585's?

therobman

10-14-2009, 05:49 PM

its better then the ls2 coil but alot better then the ls1 after selling my ls1 coils i only wound up paying like 30 bucks for the d585 coils brackets and harness

JFM-jr

10-14-2009, 06:16 PM

I just heard back from my tuner today they did a back to back with LS1 vs D585 coils on a heads cam F body. Im sure they will post the results in the other thread but I can tell you im keeping the LS1 coils.

evangto87

10-14-2009, 06:55 PM

davidws6

10-14-2009, 07:45 PM

Here's a link where all 3 coils are tested.

http://www.turbobuick.com/forums/performance-ecm-upgrades/269737-interesting-read-ls1-ls2-coils.html

Enjoy .....

JFM-jr

10-14-2009, 08:14 PM

im going to assume they didnt do much if anything?

Lost 8hp beyond 5200rpms . . . . . . .

evangto87

10-14-2009, 08:53 PM

Lost 8hp beyond 5200rpms . . . . . . .

thats interesting..... so we have 3 gains and 1 loss. Wonder y they lost power and 3 others have picked up hp. I think i may get a set since they are cheap enough and do a test on my own car. Did they say anything as to why it may have lost power. I cant understand the loss in power. I can understand no gain. But i cant see a loss with something that can generate more power. Then again im no electrician.

therobman

10-14-2009, 09:02 PM

i just got the d585 coils ill have to take a trip to kaltech to see the diffrence

KRAZY K 2000 TA

10-16-2009, 05:14 PM

:nod:i have no numbers from my ls1 to 585's but there is a noticable idle improvement for example it idled great at 950rpm's and now the idle is down to 800rpm's and idles awesome and very smooth ??

GregRexAdams

10-30-2009, 03:08 AM

I swapped. No perceptable difference.