nikofgxr6t Bronze Donating Members 284 Member For: 13y 9m 21d Gender: Male Posted 06/08/11 09:31 PM Share Posted 06/08/11 09:31 PM (edited) HI got plans to get a atomic 998 gt-a with stage 4 plus cams possibly bigger but heard when using big cams in this engine you cant tune the factory ecu you have to buy a after market one is this true has anyone heard or know anyone in this situation, Thanks Edited 06/08/11 09:32 PM by jetfg Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 5m 16d Gender: Male Location: @ my laptop Posted 07/08/11 12:52 AM Share Posted 07/08/11 12:52 AM there is not a better ecu out there for these cars than the factory one, the factory one and X3 is all that is needed but it will take more time to tune with cams as there needs to be qite a bit more work getting the starting, idle and low speed stuff working correctly, power wise there is not much more work, some will tune with out setting all the low speeds stuff and call some of the ongoing issues, normal for a lumpy cam Link to comment Share on other sites More sharing options...
qik1 Silver Donating Members 2,720 Member For: 16y 6m 2d Gender: Male Location: Loitering in SEQ Posted 07/08/11 08:31 AM Share Posted 07/08/11 08:31 AM I'm gonna make the step up to a set of stage 4 cams soon, we've decided against any higher cause of the issues they can cause and something about no longer able to use vct which is ok but you lose abit of the daily comfort you don't need to sacrifice by sticking to the 4's. There is extra power to gain by goin slightly bigger but how much do ya want and can ya live with the compromise??? Link to comment Share on other sites More sharing options...
JETFPV Donating Members 672 Member For: 17y 7d Gender: Male Posted 08/08/11 01:08 AM Share Posted 08/08/11 01:08 AM You cant run big cam's with the VCT brad from Atomic has told me, (Stage 4+ Up Im sure ??) as it cant keep the cam's phased with the crank at high RPM or something along those lines, so they remove all the VCT cam gear's and fit adjustable set... Link to comment Share on other sites More sharing options...
Dale@CHE Member 52 Member For: 16y 7d Posted 08/08/11 10:31 AM Share Posted 08/08/11 10:31 AM We have a atomic motor with stage 3 cams in our workshop hack, you cant even tell it has cams in it most of the time, drives perfectly, idles perfectly, should have rally gone for stage 4 Link to comment Share on other sites More sharing options...
nikofgxr6t Bronze Donating Members 284 Member For: 13y 9m 21d Gender: Male Posted 10/08/11 01:19 AM Share Posted 10/08/11 01:19 AM Hi got plans to get a atomic 998 gt-a motor but just want to make sure I get everything right the first time not sure what turbo to go im thinking Garrett gt51r with a 60mm waste gate and a small rear A/R for quik boost not sure what size to go yet or I been told to look into same style but a Precision as they have billet wheels and flows more am my in the right track as far as turbos go or is there somthing better I should look into??????? For the manifold probly gonna get one from 6boost hopefully they can do some sort of package Link to comment Share on other sites More sharing options...
tekaani Donating Members 163 Member For: 15y 4m 25d Posted 10/08/11 06:40 AM Share Posted 10/08/11 06:40 AM how much power do you want to make? is it predominately a street car? Link to comment Share on other sites More sharing options...
AtomiCg6 Donating Members 197 Member For: 13y 6m 30d Posted 10/08/11 10:11 AM Share Posted 10/08/11 10:11 AM hii Jettfg wats up buddy?47 letsssss gooooooooo Link to comment Share on other sites More sharing options...
ALF05T Member 453 Member For: 17y 9m 29d Gender: Male Location: Sydney Posted 10/08/11 10:03 PM Share Posted 10/08/11 10:03 PM What about a GTX4202R with the 6 boost twin scroll manifold and twin external wastegates?One guy on here has that setup and is wrapped with it Link to comment Share on other sites More sharing options...
nikofgxr6t Bronze Donating Members 284 Member For: 13y 9m 21d Gender: Male Posted 11/08/11 12:03 AM Share Posted 11/08/11 12:03 AM how much power do you want to make? is it predominately a street car?well I want to get as much power out of the 998 as I can and im sure everyone else would be too if in the same situation so want to make sure I get the right turbo. Wont be a while until everything starts happening but want to get as much info as I can before I go to my tuner and get things moving... For now the car will be driven on the street a few times a week not sure once everything is done LOL but probly will be still on the street and will take it to the track and hopefully a few shows as much as I can Link to comment Share on other sites More sharing options...
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