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Should it be clattering at this low boost?

 
Old 11-29-2018, 01:08 PM
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Your washer fluid is saving you IMO.
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Old 11-29-2018, 01:20 PM
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Originally Posted by customblackbird View Post
I've been running the 6s (TR6/4177) with good luck up to about 15psi. Stock compression 5.3 on 93 **** pump with wiper fluid and 15psi 78/75 VS turbo. Now wondering if I should be running 7s... hm. I spend alot of time out of boost as its a street car so I didnt want to go too cold on the plugs.
Originally Posted by ddnspider View Post
Your washer fluid is saving you IMO.
With the low compression of most 5.3's and that baby turbo he probably doesn't even need the wiper fluid on 15psi as I doubt its even making 600hp. Even so TR6 are plenty fine for 650hp!
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Old 11-29-2018, 01:21 PM
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So you think I need the 7s? Any negatives of the 7s when not in boost? Do I need to lean out the AFR at idle on the 7s or 6s? I idle in the 14:1 range.
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Old 11-29-2018, 01:47 PM
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Originally Posted by customblackbird View Post
So you think I need the 7s? Any negatives of the 7s when not in boost? Do I need to lean out the AFR at idle on the 7s or 6s? I idle in the 14:1 range.
Nope, I have zero concerns with TR6 at your power level. I also don't think there are any negatives to the 7's but not needed unless your going to turn it up.

People always seem to rush to cold plugs, E85, low compression, etc just to run a little boost. Thousands of pump gas supercharged cars out there sent out the door by GM with heat range 6 plugs, people raise the boost and do boltons with the same plugs with no issue.
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Old 11-29-2018, 01:49 PM
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^There's no downside like you said.....only cushion to be gained against a bad tank of gas or an accidental over boost.
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Old 11-29-2018, 01:56 PM
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Originally Posted by ddnspider View Post
^There's no downside like you said.....only cushion to be gained against a bad tank of gas or an accidental over boost.
I've almost doubled his boost on TR6's with no issues lol Also done tons of cars with almost a full point higher compression on 15PSI on TR6's with zero issues.

Take a look at the plugs if they look like they need to go cooler then do so, but I doubt the heat mark is that far down the plug on his setup. We've run the 7's to over 1200hp so running that cool of a plug for half the power doesn't really seem worth it.
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Old 11-29-2018, 02:18 PM
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Originally Posted by Game ova View Post


Don't want no stinkin racecar! MAN UP!!
Man up? Iím not a man because I want to keep my rare car nice? We had an inch of ice followed by 17Ē of snow just in one day this week then negative temps the next day. Other than putting my GTO away we went on like normal. This weather would bring Texas to a stand still. This is small town redneck central we grew up drifting gravel roads before we were old enough to get a license. On snow days we get cleared to drive our atvís on the streets then it gets real fun. I had a low 10ís turbo Buick in the mid 90ís and a low 10ís gto in 2007 now Iím older and 10ís is t what it was back then, but Iíd like to keep my gto nice because they are getting hard to find parts for these days.
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Old 11-29-2018, 02:25 PM
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Originally Posted by BCNUL8R View Post


Man up? Iím not a man because I want to keep my rare car nice? We had an inch of ice followed by 17Ē of snow just in one day this week then negative temps the next day. Other than putting my GTO away we went on like normal. This weather would bring Texas to a stand still. This is small town redneck central we grew up drifting gravel roads before we were old enough to get a license. On snow days we get cleared to drive our atvís on the streets then it gets real fun. I had a low 10ís turbo Buick in the mid 90ís and a low 10ís gto in 2007 now Iím older and 10ís is t what it was back then, but Iíd like to keep my gto nice because they are getting hard to find parts for these days.
Dude, settle down, it was just a joke. It'd be nice if everyone wasn't so serious around here, it's just cars. I mean, i could see if I were talking about kicking puppies and raping women...jeez. Lighten up folks.
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Old 11-29-2018, 02:35 PM
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What kind of power level should I be at on 10lbs?
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Old 11-29-2018, 02:39 PM
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Originally Posted by SLOW SEDAN View Post
I've almost doubled his boost on TR6's with no issues lol Also done tons of cars with almost a full point higher compression on 15PSI on TR6's with zero issues.

Take a look at the plugs if they look like they need to go cooler then do so, but I doubt the heat mark is that far down the plug on his setup. We've run the 7's to over 1200hp so running that cool of a plug for half the power doesn't really seem worth it.
I've seen speckling on an LS1 at 8 psi with teens for timing on a 7875...it really comes down to the setup. I just like 7's for the cushion that they give.
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Old 11-29-2018, 02:53 PM
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Originally Posted by Kfxguy View Post
What kind of power level should I be at on 10lbs?
I made 485 on 8psi.
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Old 11-29-2018, 03:20 PM
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Originally Posted by Game ova View Post
I made 485 on 8psi.
what engine and mods?

that would be pretty disappointing if I werenít in the 500ís. I will say that according to my weight, et and trap speed and duty cycle in my stock injectors, I had to be over 400 wheel naturally aspirated. So Iíd hope that 10psi would give me a little more than 500 wheel.
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Old 11-29-2018, 03:32 PM
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Originally Posted by Game ova View Post
Dude, settle down, it was just a joke. It'd be nice if everyone wasn't so serious around here, it's just cars. I mean, i could see if I were talking about kicking puppies and raping women...jeez. Lighten up folks.
I've seen enough of your posting style to not get rattled and know you were having fun. I'm having fun also or I wouldn't keep posting. It is redneck central here. No prep racing at the local track gets a hell of a turnout, but nothing compared to the redneck rally races. Little front wheel drive beaters going on a dirt/mud course with with hills, jumps, etc. Some of those cars are as nice as my daily. They just knock out the glass spray can a number on them and race. It pays more than drag racing here and packs the stands. I mean packs them and the pits.
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Old 11-29-2018, 03:38 PM
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Originally Posted by Kfxguy View Post


what engine and mods?

that would be pretty disappointing if I weren’t in the 500’s. I will say that according to my weight, et and trap speed and duty cycle in my stock injectors, I had to be over 400 wheel naturally aspirated. So I’d hope that 10psi would give me a little more than 500 wheel.
I think he's pretty close on the rwhp guess. I was 390 rwhp cam only so you were probably over 400 rwhp NA. I didn't dyno after the procharger, but on an overly conservative tune because I was just learning by trap speed estimates in the 1/8th I was about 460 rwhp. That was on pump and 8 psi, but still very disappointing. With 10 psi and E85 with better tuning as well estimating by trap speed I was about 550 rwhp. So I figured I gained about 35 rwhp from the extra 2 psi and the rest from tuning and the advantages of E85. I'd say with the same boost with a turbo and better heads than I have you'd be a little higher at the same boost level unless you become overly octane limited because of the higher compression and pump.
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Old 11-29-2018, 03:43 PM
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Originally Posted by Kfxguy View Post


what engine and mods?

that would be pretty disappointing if I werenít in the 500ís. I will say that according to my weight, et and trap speed and duty cycle in my stock injectors, I had to be over 400 wheel naturally aspirated. So Iíd hope that 10psi would give me a little more than 500 wheel.
6.0 ,TU1 cam, LS6 intake, ported TB, 7875, 9:5 comp, TH400. Pretty standard stuff, but then again, my tune up really too conservative. Probably would have made 510 or so at 10psi.
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Old 11-30-2018, 09:53 AM
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Originally Posted by Game ova View Post
6.0 ,TU1 cam, LS6 intake, ported TB, 7875, 9:5 comp, TH400. Pretty standard stuff, but then again, my tune up really too conservative. Probably would have made 510 or so at 10psi.
Originally Posted by Game ova View Post
I made 485 on 8psi.
Ouch those are NA numbers lol
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Old 11-30-2018, 10:05 AM
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Originally Posted by SLOW SEDAN View Post
Ouch those are NA numbers lol
I was thinking the same thing. Doesnít seem right.
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Old 11-30-2018, 10:20 AM
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You in louisiana right? IMO they have enough E85 stations to make it worth while to go flex fuel. My nearest station is 20 miles away and I happily make the trip, just bring a few gas jugs when I fuel up.
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Old 11-30-2018, 10:31 AM
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Originally Posted by SLOW SEDAN View Post
Ouch those are NA numbers lol
Meh, no biggie. Long as it runs decent on the track/street, that's the real measuring stick. For a full weight everything intact street car, I'm satisfied. Another thing, show me a NA 365 cube motor putting down 510, and let's see how it drives. I think the real question should be, what are you guys running at the track? Top is spring pressure, bottom is turned up, 19ish i think. Take with a grain of salt, still on the 7.5 so no boosted launches. Bottom slip is on a tire, whereas the top was still on a 320 compound 315.




Last edited by Game ova; 11-30-2018 at 10:53 AM.
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Old 11-30-2018, 10:33 AM
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I ran br7's in my turbo gen 3 4.8 with a billet VS racing 7875.
hit 26-28# a few times lol …. ahhh good times.. good times
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