From boost control to none and huge creep
Thread Starter
TECH Regular
Joined: Sep 2011
Posts: 431
Likes: 1
From: Washington
Thankyou. I really enjoy welding alum!
Have the piping done, tranny cooler hung. Just need to replumb the tranny lines I ended up lifting the intercooler 3/4 inch tonbetter full in the grille area, so need to finish that proper and wait for my couplers to get here
Have the piping done, tranny cooler hung. Just need to replumb the tranny lines I ended up lifting the intercooler 3/4 inch tonbetter full in the grille area, so need to finish that proper and wait for my couplers to get here
Thread Starter
TECH Regular
Joined: Sep 2011
Posts: 431
Likes: 1
From: Washington
Well intercooler did not fix the issue. Air temps are in check though! At 19psi creep with a 10lb spring there is 23.5lbs pre intercooler Creep is slower, it still present though
So I fitted up the standard cover last night and will go test again today
So I fitted up the standard cover last night and will go test again today
Thread Starter
TECH Regular
Joined: Sep 2011
Posts: 431
Likes: 1
From: Washington
That was one test I forgot to do yesterday. I meant to pull the gate tubes off. I'll see what tonight holds for time
I'm right back to last years combo now, standard cover and intercooled. Now the only change is tranny and converter
I'm right back to last years combo now, standard cover and intercooled. Now the only change is tranny and converter
Thread Starter
TECH Regular
Joined: Sep 2011
Posts: 431
Likes: 1
From: Washington
Results are in.
Standard cover, 10lb spring nets me 10.5 psi in high gear
Standard cover with 20%dc gets me 14psi
Standard cover with 50%dc get me 18psi
Race cover back on, with 10lb spring, yesterday netted me 18.5 and platouing, tonight with the screamer pipes gone, it flatlined 12.5 psi. Didn't check any dc% as weather was coming in
So this tells me my 1-3/4 Y'd into a single 2-1/4 is causing me issues. I think I have time to remake the 2-1/4 into 3 inch for Saturday's event
This also tells me that my ETS core is less restrictive than the frozen boost 4x9x10 core and that the race cover is a lot more efficient. I can feel the power difference and it sounds stronger from the inside, but the folks watching from the outside said the car is overall quicker and sounds stronger with the race cover
So I can redo a 3 inch pipe, or go back to the standard cover this weekend
Standard cover, 10lb spring nets me 10.5 psi in high gear
Standard cover with 20%dc gets me 14psi
Standard cover with 50%dc get me 18psi
Race cover back on, with 10lb spring, yesterday netted me 18.5 and platouing, tonight with the screamer pipes gone, it flatlined 12.5 psi. Didn't check any dc% as weather was coming in
So this tells me my 1-3/4 Y'd into a single 2-1/4 is causing me issues. I think I have time to remake the 2-1/4 into 3 inch for Saturday's event
This also tells me that my ETS core is less restrictive than the frozen boost 4x9x10 core and that the race cover is a lot more efficient. I can feel the power difference and it sounds stronger from the inside, but the folks watching from the outside said the car is overall quicker and sounds stronger with the race cover
So I can redo a 3 inch pipe, or go back to the standard cover this weekend
Thread Starter
TECH Regular
Joined: Sep 2011
Posts: 431
Likes: 1
From: Washington
I was to. I did a bunch of research on the cover before the purchase and all of them stated that the cover was not worth anything till you have maxed out standard cover, or at least close to being all in. I took the gamble, more for the looks than anything and am quite surprised at the data
Looks like my race event is cancelled this weekend, so I'll take the time to run new piping off the gates, maybe upsize to 2 inch then blend into a single 3 inch
I'm also happy to report that the race cover, tubes off setup was running closed loop with 0% dc. Meaning it ran 100%dc to 175kpa then still had the chance to meet the new Wastegate pressure with out overboosting like it was doing before
Looks like my race event is cancelled this weekend, so I'll take the time to run new piping off the gates, maybe upsize to 2 inch then blend into a single 3 inch
I'm also happy to report that the race cover, tubes off setup was running closed loop with 0% dc. Meaning it ran 100%dc to 175kpa then still had the chance to meet the new Wastegate pressure with out overboosting like it was doing before
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
I merge my two 1.75" dumps into a single 2.25" that dumps by my main down pipe behind the front tire and had no boost creep issues when I was running 10 psi.
It's odd how something works on one setup but not on another.
It's odd how something works on one setup but not on another.
Thread Starter
TECH Regular
Joined: Sep 2011
Posts: 431
Likes: 1
From: Washington
Different combos for sure. Just look at my boost dc being differnt from cooler to the next and how my 1-3/4 into 2-1/4 doesn't work on the race cover. Shows the potential even down at lower boosts what the race cover offers
I've decided for a weather standpoint to not attend the Bremerton car event this weekend. I'll head up in august when they run it again. So now I have until June 3rd before Lynne t points race in Toutle. So I'm getting my hands on a pair of Precision 46mm gates and I'll mod them on there with better gate flow and twin pipes out the car
Thankyou for all the help and suggestions on this matter, feels nice to have a solid conclusion
I've decided for a weather standpoint to not attend the Bremerton car event this weekend. I'll head up in august when they run it again. So now I have until June 3rd before Lynne t points race in Toutle. So I'm getting my hands on a pair of Precision 46mm gates and I'll mod them on there with better gate flow and twin pipes out the car
Thankyou for all the help and suggestions on this matter, feels nice to have a solid conclusion
Last edited by Nathaninwa; May 11, 2017 at 01:20 PM. Reason: Typo
Thread Starter
TECH Regular
Joined: Sep 2011
Posts: 431
Likes: 1
From: Washington
I've got conflicting info. My buddy bought a used set of car scales. I weighed the new setup and race weight was at 2326. Which felt a little light but I did take a bunch of weight out. Monday on the way home we pulled off at the truck scales to get a new intercooler weight and scale said 2520 race weight. I had used the same scales back then for the 2750ish weight. I know close to 300 came out, so I'm in the sub 2500 zone at least