Dmax intercooler.....the jury is still out
08-20-2006, 10:08 AM
#52
Originally Posted by 03sierraslt
Do you know what your current AFR is? Obviously at WO.
http://www.pasadenatownhall.com/efilive.jpg
08-20-2006, 10:54 AM
#53
I am still lost as to why you didnt see a decent gain, I am running rich with less boost then before and the difference is still nite and day. I still wonder why you didnt get any additional timing with seeing KR. I dont know man it seems like something is missing here.. I know that thought has crossed you mind but..... it just doesnt make sense.
08-20-2006, 11:08 AM
#54
Originally Posted by 03sierraslt
I am still lost as to why you didnt see a decent gain, I am running rich with less boost then before and the difference is still nite and day. I still wonder why you didnt get any additional timing with seeing KR. I dont know man it seems like something is missing here.. I know that thought has crossed you mind but..... it just doesnt make sense.
08-20-2006, 11:55 AM
#55
Ok well here are my thoughts, Just looking at IAT's. The intercooler is doing its job of cooling them down, so there for any other intercooler is not going to help any more as far as Iat's are concerned. However with your ECT's being higher it seems like you are canceling out any positive effects of the lower Iat's. I wonder if your coolant is spending enough time in the radiator? On both your truck and the duramax the water pump is driven off the belt which is speed dependant based upon RPM, now I dont know if there is a difference in flow between the two ( I imagine there is). I just wonder if your Water pump is moving the coolant at too high of a rate for the Duramax radiator to cool the ECT's? Being that you already have alot of the piping done did you consider just doing a front mount behind the lower valance like myself as well as many others? You could get rid of all the dmax stuff and just pick up a A2A, in the worst case you could turn around and sell it for hardly any loss being the amount of people that are using them.
08-20-2006, 03:41 PM
#56
Originally Posted by 03sierraslt
Ok well here are my thoughts, Just looking at IAT's. The intercooler is doing its job of cooling them down, so there for any other intercooler is not going to help any more as far as Iat's are concerned. However with your ECT's being higher it seems like you are canceling out any positive effects of the lower Iat's. I wonder if your coolant is spending enough time in the radiator? On both your truck and the duramax the water pump is driven off the belt which is speed dependant based upon RPM, now I dont know if there is a difference in flow between the two ( I imagine there is). I just wonder if your Water pump is moving the coolant at too high of a rate for the Duramax radiator to cool the ECT's? Being that you already have alot of the piping done did you consider just doing a front mount behind the lower valance like myself as well as many others? You could get rid of all the dmax stuff and just pick up a A2A, in the worst case you could turn around and sell it for hardly any loss being the amount of people that are using them.
And yes, i have also considered running a different A2A I/C and mounting it out front since i already have the piping, although i assume it would have to be longer and slightly re-routed. I am not totally against that idea, but if i can get enough for the Dmax stuff im going to sell, i think i will go with the A2W by Whipple, and install a larger heat Xchsnger with a fan on it. That will eliminate any lag that would come from having 12' of pipe. The Whipple only has about 18" of total pipe for the I/C.
08-20-2006, 05:36 PM
#58
Before you give up, why don't you email Allen Nelson, give him links to these threads, and ask if he thinks it might be in the tune? That is one thing that 03sierraslt and me have in common that you don't, Nelson tunes. Our trucks both run much better, your's doesn't. We all have different setups, the only commonality is the tune. Everything that 03 says about his truck applies to mine, including no lag. Hate to see you tear it apart without exhausting all of your possibilities.
08-21-2006, 06:30 AM
#59
Originally Posted by MikeGyver
Before you give up, why don't you email Allen Nelson, give him links to these threads, and ask if he thinks it might be in the tune? That is one thing that 03sierraslt and me have in common that you don't, Nelson tunes. Our trucks both run much better, your's doesn't. We all have different setups, the only commonality is the tune. Everything that 03 says about his truck applies to mine, including no lag. Hate to see you tear it apart without exhausting all of your possibilities.
08-21-2006, 06:53 PM
#60
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Linda, I don't know if I would be able to get it to work either but I would be very interested in purchasing the components from you and trying. If and when you decide a price I would appreciate a first shot. I wouldn't need the remote battery stuff or the intercooler itself but I'm interested in the rest.
Vernon
Vernon