GTP091 Posted February 20, 2011 Report Share Posted February 20, 2011 Now that my GTP front coil over project is almost finished it's time to move into turbocharging. I want to start ordering the parts I'll need. The small stuff is easy to figure out oil and fueling is straightforward enough. I've had my finger on the complete this purchase button for the turbo several times recently but need more thought put into it. My #1 choice is a twin scroll T3/T4 - TO4E with a .83 turbine and .60 compressor but I'm not quite 100% yet. the other option is a T4 - TO4B but maybe it's to big and will have more lag than I want. I'm looking for 5-8 PSI with the ability to turn it up to12 (maybe) and 350-375 hp. any suggestions on best compromise for the LQ1? and yes iam serious about this, I just bought a mig welder to build the manifolds... Quote Link to comment Share on other sites More sharing options...
Psych0matt Posted February 20, 2011 Report Share Posted February 20, 2011 Definitely following this thread... Quote Link to comment Share on other sites More sharing options...
Jonpro03 Posted February 20, 2011 Report Share Posted February 20, 2011 Looks like the t04e will spool better: http://www.squirrelpf.com/turbocalc/graph.php?version=4&pr0=1&pr1=1.07&pr2=1.35&pr3=1.64&pr4=1.64&pr5=1.64&pr6=1.64&pr7=1.64&airflow0=3.8&airflow1=12.4&airflow2=17.7&airflow3=23.8&airflow4=30&airflow5=34.4&airflow6=36.6&airflow7=37.3&product_id=61 and the t04b will spool slower, but is more capable. http://www.squirrelpf.com/turbocalc/graph.php?version=4&pr0=1&pr1=1.07&pr2=1.35&pr3=1.64&pr4=1.64&pr5=1.64&pr6=1.64&pr7=1.64&airflow0=3.8&airflow1=12.4&airflow2=17.7&airflow3=23.8&airflow4=30&airflow5=34.4&airflow6=36.6&airflow7=37.3&product_id=62 Quote Link to comment Share on other sites More sharing options...
BXX Posted February 20, 2011 Report Share Posted February 20, 2011 T04e is way to close to the stall line for comfort:thumbsup: Quote Link to comment Share on other sites More sharing options...
RobertISaar Posted February 20, 2011 Report Share Posted February 20, 2011 hmm... i had a list going when i was researching turbo LQ1 possibilities... these were all the ones i could find that would stay in decent efficiency (~60%) while staying comfortably away from stall and surge. i did it in 5PSI increments(and stopped after 10 for some reason...), but it may help. ~5PSI ~277HP GT3076R GT3582R GT3776 GT3782R GT3788R GT3794VA GT4082 GT4088-1 GT4088-2 GT4094R GT4094VA GT4202 GT4294 GT4508R GT4594 GT4708 GT4718 T04B 60-1 T04B 62-1 T04B H-3 T61 T64 T66 T68-1 T70 T72 T80 T04Z TS04 GTX4294R TD06-17C TD06H-20G HX30E-7765AX H1E-82848D H2E-9551BA S200 S300 S400 K27 S256 S258 S362 S366 S372 ~10PSI ~353HP GT2871R-1 GT2871R-3 GT2876R GT3071R GT3076R GT3582R GT3776 GT3782R GT3788R GT3794VA GT4082 GT4088-1 GT4088-2 GT4094R GT4094VA GT4294 T04E-50 T04E-54 T04E-57 DBB T04E-60 T04E-60 DBB T04B 60-1 T04B 62-1 T04B H-3 T04B V-1 T04B V-2 T61 T64 T66 T68-1 T72 T80 T04Z TS04 GTX4294R TD06H-20G HX30E-7765AX HX40-B8554M H1E-82848D H2E-9551BA S200 S300 S400 K27 S256 S258 S366 S372 S472 Quote Link to comment Share on other sites More sharing options...
GTP091 Posted February 21, 2011 Author Report Share Posted February 21, 2011 T04e is way to close to the stall line for comfort:thumbsup: There's lots of others who have used the T04E with no problems of stall I'm aware of. I think having a good boost controller will help here. Quote Link to comment Share on other sites More sharing options...
pwmin Posted February 22, 2011 Report Share Posted February 22, 2011 timg and redzmonte have TO4E super 60's on theirs...look them up on here or 60degreev6.com Quote Link to comment Share on other sites More sharing options...
GTP091 Posted March 4, 2011 Author Report Share Posted March 4, 2011 I've picked up a new HKS blow-off valve. Any recommendations on a waste gate?? Quote Link to comment Share on other sites More sharing options...
Jonpro03 Posted March 4, 2011 Report Share Posted March 4, 2011 Which turbo did you buy? Quote Link to comment Share on other sites More sharing options...
GTP091 Posted March 6, 2011 Author Report Share Posted March 6, 2011 I haven't decided yet. either a T04E or B. Probably the E Quote Link to comment Share on other sites More sharing options...
GTP091 Posted October 26, 2011 Author Report Share Posted October 26, 2011 The turbo I'm going to get has a 2.5" outlet on it and the intake on the LQ1 has a 3". I need to put a 2.5" - 3" coupler somewhere in the system. I was thinking of putting it right before the intake so I can keep the intercooler piping at 2.5". I was thinking it would help with lag as well as there would be less air volume to compress. For you guys that know turbo systems do you have any opinions on this. I need to buy the intercooler pretty quick and want to know if I should get a 2.5" or a 3" outlet. It"ll be a same side intercooler (top) to keep the pipe runs short. Quote Link to comment Share on other sites More sharing options...
Schurkey Posted October 26, 2011 Report Share Posted October 26, 2011 Any feedback on the "tailpipe turbos"? Seems like that would nearly eliminate crowded engine compartment issues. I know some folks don't like 'em because of dirt ingestion issues from the tires churning up dust; seems to me that'd be easier to deal with than underhood congestion in a more traditional mounting arrangement. Quote Link to comment Share on other sites More sharing options...
White93z34 Posted October 26, 2011 Report Share Posted October 26, 2011 One of the other boards I'm on just had a semi-discussion about it, there is the camp of thought that you are loosing quite a bit putting it back there and it would be WAY more beneficial to have it closer to the engine, and it creates its own problems of having to either run engine oil all the way back there and have a scavanger pump that can put up with the heat to send it back to the engine or build a separate oiling system that has its own drawbacks. Then I've also seen 2.8/5 speed cavvys respond amazingly well with such a setup. Quote Link to comment Share on other sites More sharing options...
GTP091 Posted October 28, 2011 Author Report Share Posted October 28, 2011 I will definitely not be doing a remote turbo. I don't want to have a system that has to make up for it's own flawed design. There is lots of room for a Turbo on my car in the proper location. I've relocated the battery and have a custom intake on it. The downpipe will be a challenge but it's been done lots. Quote Link to comment Share on other sites More sharing options...
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