TRANSBRAKE TURBO SPOOLING Tips and info!
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- Опубликовано: 5 мар 2020
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When you said am i having issues getting it up at first .... I thought it was a commercial for viagra
I said it way to fast but that is the joke I was going for. 😂😂
Aww man ya hid the launch timing 😂 love your vids guy !!!
Always great stuff. Making me rethink cam selection for sure.
Very good I'll watch this several times.
I built na motors and a little nitrous later on
I built fast cars but what you guys do is different. I'll get it.
Very good video !! People always think bigger cams or bigger turbo is the answer you nailed it on the head with this video. I learned something new as well. Keep these up !!
Thanks man! Hopefully everyone likes this kind of stuff I definitely enjoy sharing it!
Squirrel Tuned that converter not working in certain da I never knew about but it made sense once you said it. It’s always been comical to me seeing boosted street cars from our area go to Houston and they run into trouble because they’re overboosting and having issues people don’t realize that da and elevation play a huge factor.
@@whippledcobra8506 yeah it can make a huge difference. The ZR1 picked up like 4psi going to houston same pulleys lol. Fox took less c02 to make the same boost too.
Great video! Gonna throw the new timing table in the car tomorrow and try it out. I was being far too conservative with timing while on the brake so we shall see
Thanks man, let me know how it works for you!
@@SquirrelTuned so I just got it up on the brake. I'm 99% sure it's just a weak motor with a healthy size turbo causing my problem. I knocked off about half a second using your info (which is helpful). Still takes around 5.5 seconds to get to the 2 step. Sbe 5.3 with 317 heads lol. It's about 8.6:1 compression. And it has a vs racing 85/88 t6 turbo. It runs good (5.64 @ 122 on 22psi) but just takes forever on the transbrake.
@@blakedavid71 yeah gotta ditch those 317s. You'd be better off with 862s or 799s. Glad it helped some though.
@@SquirrelTuned for sure! I have a rod/piston 10:1 6.0 sitting on the stand ready to go in. It'll be much happier then. I was just trying to see what I could squeeze outta the $300 gen 3 5.3. Thanks for your responses!
@@blakedavid71 nice that should work well. Check out my new video that should be up tomorrow to see what a little forged 6.0 can do. 😉 Another video on it is up on my channel too. Second to last upload I think.
This is something I've been trying to talk my tuner through for quite a while. He's not really used to drag racing applications especially with an auto. Excellent video!
Thank you! Hopefully I could help.
I’m aggressive on the timing till I’m building 4psi or so then yank a bunch and it builds boost pretty quick. Last time at the track the DA was 12,800’. Altitude in Wyoming is nuts
Yes sir that's typically how I do it. Its definitely much harder in bad air
I really enjoyed and relate to this video.
I spool a 3L v6 with twin gtx3582s and a pretty hard converter.
Around 6s i can go from 2000rpm to 5600 and 30psi.
I use the fuel cut not ignition and retard the timing right down and gets the boost and rpm dead smooth on the 2 step. Also adjusting stall speed on converter makes a massive difference. Like to have it within 1500 of the shift rpm.
Nice man. It's definitely even more critical on engines like that. Us v8 guys have it easy lol. Converter is a huge part though for sure not only for spooling but to get the car down the track as fast as possible and not hurting the engine.
@@SquirrelTuned oh yeah little engines are hard. My issue is around 4000 rpm where it stalls out for a bit. Still making 12-15 psi but not enough power to push the converter untill the turbos properly spool. Just got my converter changed from 6600 to around 7200 stall so hopefully it will help.
@@SquirrelTuned facebook.com/rwpracing/videos/409774253324987/ a video of how it is.
@@aussie1926 nice yeah I know some of the real fast 2jz stuff has to use nitrous to spool properly. They can't spool with a converter tight enough to hold 2000+hp down track. Good friend of mine is part owner and tuner at prospeed and they just set the import radial record recently.
@@SquirrelTuned that was the white rice car?
I got no nitrous at this stage. The converter guy has been working with us also testing things for him.
I see you have the huges dump valve setup. Have you installed it yet? I have the mmr quick spool valve but modified it to dump converter pressure. But dont think the size of it is big enough because cooler line pressure stays about the same. Interested to see where and how the huges ones install.
Some great info here. Question so from like pump to full meth is going to make a huge differance in spool time right? Does it need alot more timming because it burns slower? thanks for sharing keep these up👍👊💪.
Thanks for watching! Yes it should spool quite a bit faster on meth. Timing part I can't answer yet I haven't seen a for sure answer on that and don't have my own experience with it quite yet but I will soon!
@@SquirrelTunedoh ok. That's great man. I am doing a switch from pumpgas/meth to a full meth setup with mech pump. Not done with the build yet so just looking for some tips and tricks when i am going to tune for the meth.
@@alexrozier6550 I am switching to meth on my car and a friend's car atm so I should have some info to share soon. So far I know you want it extra rich. Like 3.5:1 with a good amount of boost. Non intercooled at least.
@@SquirrelTuned yeah iam doing non intercooled too. I was looking into tuning on lambda with my Ms3. So .72 in boost i think.still on sbe 5.3 799 heads btr stg3 holley high. Powerglide ptc 9.5 f body trans am
@@alexrozier6550 3.5 on methanol is .55 lambda. You want it extremely rich lol. Here's a good tool to convert afr to lambda with all different fuels. I don't think you need to be that rich until 20+psi though. www.wallaceracing.com/air-fuel-lambda.php
I'm gonna have to watch this a few times. My turbo hasn't spooled at 3k rpm on the brake. My timing is 34 degrees on 5.3. No do,e pressure just on wastegate spring
It's possible the wastegate is opening and letting some exhaust gasses escape. Keeping that from happening can make a big difference in spooling. It's also possible the converter is just too tight for your combo though and needs changed.
@@SquirrelTuned so I should put the 20lb spring in? The converter should be good, had it specd for combo by ptc
@@infamousnova what stator is in it? I've seen a lot of converter specs missed by all companies including ptc. Stronger spring should help some. I'll usually use boost control to close the gate while spooling so lots of dome pressure or boost controller percentage when it is trying to spool.
@@infamousnova also is it a 9.5? Altitude will make a big difference as well.
@@SquirrelTuned yes it is a 9.5
400cid sbc twin 7875 turbos at 3500rpm on the trans brake it makes 3psi. At 4000rpm it will only make 5.1psi even pulling out an additional 8° of timing so at 5.1psi it was at 23° of timing. How can I get the boost up no boost leaks
Are you adding any pressure to the dome or is it just on Wastegate? In my experience you need to pull quite a bit of timing to make a big difference. Typically I find on LS stuff they like to drop down into the single digits on timing. I haven't messed with a sbc yet.
@@SquirrelTuned yes i was adding 10psi to the dome
Might take more rpm, mine with 32 on the dome would only make 16 at 4300 but at 4700 it only took 18 on the dome to make 16.
@@SquirrelTuned thats what i cant wrap my mind around I have a 6lb spring I dont understand why I would have to add so much to the dome
Dome pressure wont be 1 to 1 with boost. Especially as you start to push the turbos harder.