NSFW Posted December 11, 2009 Share Posted December 11, 2009 I tried the whole hybrid boost control w/ MBC, it worked well if you didn't have a big temp swing, but I was already seeing a 1.5 psi spread in 40 degree different temps (F), so for me it is out of the question. FWIW, I did some logging last night at 20F and the boost levels are only about .5 psi higher than when it was 50F, and for most of the range that's governed by the MBC alone the difference is more like .25 psi. This is with a Hallman Pro Rx. I still look forward to trying a 3-port or 4-port setup, but this particular MBC works well enough IMO. Link to comment Share on other sites More sharing options...
LittleBlueGT Posted December 11, 2009 Author Share Posted December 11, 2009 FWIW, I did some logging last night at 20F and the boost levels are only about .5 psi higher than when it was 50F, and for most of the range that's governed by the MBC alone the difference is more like .25 psi. This is with a Hallman Pro Rx. I still look forward to trying a 3-port or 4-port setup, but this particular MBC works well enough IMO. That sounds like what I have heard form others. I am doing the hybrid style method on a friends car on Monday (IWG, VF52). Full tune of 68HTA, KSTech 73 MAF, Racer X FMIC and ID1000s................by the DataLog Mafia!!! Link to comment Share on other sites More sharing options...
05pearl Posted December 11, 2009 Share Posted December 11, 2009 That sounds like what I have heard form others. I am doing the hybrid style method on a friends car on Monday (IWG, VF52). When you are done, give us your opinion on what you see as the major differences in performance between the 68HTA and VF52. Link to comment Share on other sites More sharing options...
LittleBlueGT Posted December 11, 2009 Author Share Posted December 11, 2009 When you are done, give us your opinion on what you see as the major differences in performance between the 68HTA and VF52. My car has a few mods the VF52 doesn't have, but the VF52 will see an alky tune as well. Right now I would say about 50-60 whp difference. Spool on my hta68 is actually slightly better then 09 WRX, but I have ELH. Full tune of 68HTA, KSTech 73 MAF, Racer X FMIC and ID1000s................by the DataLog Mafia!!! Link to comment Share on other sites More sharing options...
05pearl Posted December 11, 2009 Share Posted December 11, 2009 Wow, 50-60 whp and you both are using TMIC's. Both turbos are in the same price range too. Sounds like the HTA68 is the choice for sure. Link to comment Share on other sites More sharing options...
LittleBlueGT Posted December 11, 2009 Author Share Posted December 11, 2009 Wow, 50-60 whp and you both are using TMIC's. Both turbos are in the same price range too. Sounds like the HTA68 is the choice for sure. I would say 50-60 in alky, the difference TMIC to TMIC would be about 40-50 IMO. Full tune of 68HTA, KSTech 73 MAF, Racer X FMIC and ID1000s................by the DataLog Mafia!!! Link to comment Share on other sites More sharing options...
Spec B Posted December 11, 2009 Share Posted December 11, 2009 Sorry if I missed it, does the WRX have upgraded fueling (injectors/pump)? I would be nice to see the mods on your car vs the WRX. I would have thought all mods being equal the difference was going to be closer to 15-20 or 30 whp tops. I am loving that HTA turbo more and more. Link to comment Share on other sites More sharing options...
LittleBlueGT Posted December 11, 2009 Author Share Posted December 11, 2009 Sorry if I missed it, does the WRX have upgraded fueling (injectors/pump)? I would be nice to see the mods on your car vs the WRX. I would have thought all mods being equal the difference was going to be closer to 15-20 or 30 whp tops. I am loving that HTA turbo more and more. The VF52 doesn't have fuel mods, but w/ alky that won't matter. The VF52 flows what 37-38 lbs/min, the HTA68 flows about 45 from my limited experience (I know it has a 47 lb wheel, but the rest is too much of a restriction to get the full potential out of it). Right there that is at least 40-50 whp. My AVO380 is a good 20-30 whp step above the VF52, the HTA68 is another 20-30 above that. I will post more relevant data when I get it. We will both be going to the track together, and we both use the same gas and road for logs. Full tune of 68HTA, KSTech 73 MAF, Racer X FMIC and ID1000s................by the DataLog Mafia!!! Link to comment Share on other sites More sharing options...
wsmith30132 Posted December 11, 2009 Share Posted December 11, 2009 In your opinion, was doing the TMIC swap with the HTA worth the little spool and 20-30 WHP? Link to comment Share on other sites More sharing options...
LittleBlueGT Posted December 11, 2009 Author Share Posted December 11, 2009 In your opinion, was doing the TMIC swap with the HTA worth the little spool and 20-30 WHP? Not really, nothing I do on my car is worth it after all the headaches going in. The TMIC really is a PITA IMO, if I did ever go to a FMIC (which I would almost have to do to run decent timing on pump gas) it would be a no brainer. Full tune of 68HTA, KSTech 73 MAF, Racer X FMIC and ID1000s................by the DataLog Mafia!!! Link to comment Share on other sites More sharing options...
05pearl Posted December 11, 2009 Share Posted December 11, 2009 Not really, nothing I do on my car is worth it after all the headaches going in. The TMIC really is a PITA IMO, if I did ever go to a FMIC (which I would almost have to do to run decent timing on pump gas) it would be a no brainer. I guess you already know about itsme's no cutting, no losing fogs, $700 fmic that fits LGT or WRX turbos? Link to comment Share on other sites More sharing options...
LittleBlueGT Posted December 11, 2009 Author Share Posted December 11, 2009 I guess you already know about itsme's no cutting, no losing fogs, $700 fmic that fits LGT or WRX turbos? The more I try to tweak my pump tune, the more I think about it. Full tune of 68HTA, KSTech 73 MAF, Racer X FMIC and ID1000s................by the DataLog Mafia!!! Link to comment Share on other sites More sharing options...
Legacy_GT_Pilot Posted December 11, 2009 Share Posted December 11, 2009 LOL. I thought I was done tweaking my ride until I saw that project FMIC and I broke down and signed on. Now with that intercooler, I will likely look at a larger turbo as well as it will be easy to change. Modding never ends. The more I try to tweak my pump tune, the more I think about it. Link to comment Share on other sites More sharing options...
05pearl Posted December 11, 2009 Share Posted December 11, 2009 Modding never ends. I'm fighting it hard right now, but I have a feeling I'll lose the battle. Link to comment Share on other sites More sharing options...
KSTech Posted December 12, 2009 Share Posted December 12, 2009 I wanna see the intake for sure!!!!!! Well, these pics were of LBGT's intake (the actual one... except for the filter), but they were taken on an 08 STI, because it has the same inner sheetmetal as the LGT and fits basically the same: http://www.kstech.biz/media/00/a20791512552299ce7c7fc_l.jpg http://www.kstech.biz/media/00/a207915125522a1b148a83_l.jpg http://www.kstech.biz/media/00/a207915125522a84328edc_l.jpg http://www.kstech.biz/media/00/a207915125522ada2a25b7_l.jpg Link to comment Share on other sites More sharing options...
Scooby2.5 Posted December 12, 2009 Share Posted December 12, 2009 Not really, nothing I do on my car is worth it after all the headaches going in. The TMIC really is a PITA IMO, if I did ever go to a FMIC (which I would almost have to do to run decent timing on pump gas) it would be a no brainer. That is exactly where I am heading next spring. E85 with the FMIC. Got 350/373 on the TMIC on mustang dyno, now shooting for the 370/430 Sean and tim got with the FMIC or the big TMIC on the new STI I am sick and tired of jacking with this TMIC every time I need to do something. Although the AVO TB hose has made it better once you get it on. Link to comment Share on other sites More sharing options...
LittleBlueGT Posted December 12, 2009 Author Share Posted December 12, 2009 Well, these pics were of LBGT's intake (the actual one... except for the filter), but they were taken on an 08 STI, because it has the same inner sheetmetal as the LGT and fits basically the same: http://www.kstech.biz/media/00/a20791512552299ce7c7fc_l.jpg http://www.kstech.biz/media/00/a207915125522a84328edc_l.jpg You can see how high this intake sits vs the AEM. But it is nowhere near as loud as the K&N. You can also see how the heatshield is the bracket that holds it up. Full tune of 68HTA, KSTech 73 MAF, Racer X FMIC and ID1000s................by the DataLog Mafia!!! Link to comment Share on other sites More sharing options...
LittleBlueGT Posted December 12, 2009 Author Share Posted December 12, 2009 I messed with my DWB tables a bit. I found (especially in the cold) the car was hard to drive at a medium level, you know not slow, but not extremely fast either. The car was hard to modulate at 3 psi, it was either vacuum or 10 psi it seemed. This is my starting DBW table: http://i248.photobucket.com/albums/gg194/littlebluegt/Throttle1.jpg I then made it ramp of more linear, the same at all rpms. It was not good, seemed you had to press the gas to 1/2 way to even move. http://i248.photobucket.com/albums/gg194/littlebluegt/Throttle2.jpg So I split the difference between the two: http://i248.photobucket.com/albums/gg194/littlebluegt/Throttle3.jpg I haven't flashed this one back to the car yet, so I don't know if I like it or not. Full tune of 68HTA, KSTech 73 MAF, Racer X FMIC and ID1000s................by the DataLog Mafia!!! Link to comment Share on other sites More sharing options...
05pearl Posted December 12, 2009 Share Posted December 12, 2009 I'm fighting it hard right now, but I have a feeling I'll lose the battle. I lost the battle. Just sent my deposit in for itsme's FMIC. Link to comment Share on other sites More sharing options...
NSFW Posted December 12, 2009 Share Posted December 12, 2009 I made mine almost totally linear. It felt funny after using the stock table for so long, but it felt a lot more like my previous car (2.5L, NA) so I got used to it quickly and now I'm very happy with it. When it was totally linear (160 at 50%) the response off idle felt strange, like there was a dead spot there, so now I have 60s in the 7% column and it ramps up in increments of 20 from there to 320 @ 100%. Link to comment Share on other sites More sharing options...
LittleBlueGT Posted December 12, 2009 Author Share Posted December 12, 2009 I made mine almost totally linear. It felt funny after using the stock table for so long, but it felt a lot more like my previous car (2.5L, NA) so I got used to it quickly and now I'm very happy with it. When it was totally linear (160 at 50%) the response off idle felt strange, like there was a dead spot there, so now I have 60s in the 7% column and it ramps up in increments of 20 from there to 320 @ 100%. Post it. FWIW my DW740s have no lean spot what-so-ever. Full tune of 68HTA, KSTech 73 MAF, Racer X FMIC and ID1000s................by the DataLog Mafia!!! Link to comment Share on other sites More sharing options...
NSFW Posted December 12, 2009 Share Posted December 12, 2009 http://i193.photobucket.com/albums/z151/Legacy_NSFW/Tuning/v096-RequestedTorque.png I'm still experimenting with different approaches to the soft rev limiter, but the one above works OK. Glad to hear about the injectors. I was going to get DW740s way back when, but I found a deal on the Perrin 816s. I'm not going to be doing much to my car for a few months but I think I'm going to get ID1000s in the spring. Link to comment Share on other sites More sharing options...
SubyShop.com Posted December 12, 2009 Share Posted December 12, 2009 This is what mine looks like. Very easy to keep the car in vacuum if needed and the throttle response is a lot better. -Franz http://www.subyshop.com/images/dbw.jpg Link to comment Share on other sites More sharing options...
Ridgeracer Posted December 17, 2009 Share Posted December 17, 2009 I ordered one of these turbos myself based on some of your testing LBGT. Now I'm praying to the ringland gods that she doesn't blow up. "Gimme mines Balboa...Gimme mines".....Clubber Lang - Mr. T Link to comment Share on other sites More sharing options...
Scooby2.5 Posted December 20, 2009 Share Posted December 20, 2009 Forrester XT on E85 with the HTA68 http://forums.nasioc.com/forums/showthread.php?t=1895070 http://forums.nasioc.com/forums/showthread.php?t=1863077 Link to comment Share on other sites More sharing options...
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