2020 EB Stg II Installed

[Burkey]

Update #5: Lund tuning is complete.

Before: 629 rwhp/600 rwtq (3.5" blower pulley, straight 91 octane, EB 91 tune)
After: 641 rwhp/611 rwtq (3.75" blower pulley, 93 octane, Lund tune)

The car is completely stock other than MMR OPG/CS. A10 with 3.55 gears. I'm also using a .026" nitrous pill that seems to ramp up the boost smoothly.

Overall, there wasn't a big increase in power, but it's a safer boost level and the power delivery is much better. The car is way more fun to drive and I'm completely content with this power level for a street car.

Do you have a copy of both the charts? Would love to see them

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[Patriot Six]

@Patriot Six what psi does the 3.75 give you on phase 2? I know my phase 1 is much happier with the 3.5 at 9psi.

It should be about 10.5-11psi. I think the boost gauge from the dyno was on the fritz because it was pretty linear and showed a peak of about 13psi. I didn’t log boost for Lund, either.

 

[Patriot Six]

Do you have a copy of both the charts? Would love to see them

EB 91, 7th gear

Lund 93, 6th gear

View attachment 439144

 

[Slopoke]

EB 91, 7th gear

Lund 93, 6th gear

View attachment 439144

Nice to see some 91 octane fuel numbers. If I get 620ish, I'll be happy.

 

[Burkey]

EB 91, 7th gear

Lund 93, 6th gear

View attachment 439144

400 ponies at the tyres at 3500 is no joke. Especially when you’ve pulled some of the boost out of it.

 

[Sighlense]

400 ponies at the tyres at 3500 is no joke. Especially when you’ve pulled some of the boost out of it.

Nor 580 ft lbs. Sick!

 

[Burkey]

Nor 580 ft lbs. Sick!

In before someone says it isn’t making enough peak power at a zillion rpm
@Patriot Six which breed of dyno was used?

 

[Patriot Six]

DYNO-mite

 

[GreenS550]

I'm reading your thread very closely. I am looking to boost my '18 auto 355 gears car. Have the Whipple on my '19, but like the look of the EB. I've read stuff about tunes, etc. dealing with EB more than Whipple and the stock Whipple tune is great. But still looking at the EB tune because your torque is ridiculous at that RPM. I don't know what difference the 6th gear makes, though. Likely it is lower in 6th than 1:1 in 7th which means you are making some great power for the boost.
Congratulations on getting everything worked out. Did you do the install yourself?

 

[Patriot Six]

Thanks. 6th gear was approximately 15 rwhp/tq lower than 7th. I had a shop do the install because at that point I was hoping to keep the EB warranty until I realized how bad their tune was.

 

[BlueCollarDaily]

Thanks. 6th gear was approximately 15 rwhp/tq lower than 7th. I had a shop do the install because at that point I was hoping to keep the EB warranty until I realized how bad their tune was.

I was thinking same thing your really about minimum 655/620 on 93 in 7th....with stock exhaust....

I just got my car back and it's running smooth as pie all the way up to 8000rpm....I am moving the air he moves at 7600 peak on mine by 6500rpm with my catless long tubes..and 3 inch H pipe exhaust.( for those than wonder if it responds to a free flowing exhaust as they say)....I'd say 50hp ( his air mass load is 1.68ish mine peaks at 1.93 but averages 1.82-5) more same combo running the blower as SLOW as you can possibly run it........cant even hear the the blower either....not saying look at me I make more just stressing his is as choked back as it gets basically worse case scenario. The blower turning a slow as possible, stock exhaust with 93 pump....and imho damn good results....
Got a newborn grand son may try to make it to a 1000ft track if not this weekend the next....got my car back near dark last night but I did make a torture pull it seems perfect.....

Remember when you look at that torque curve that's with the pill in that slows down the boost coming in...if you take it out it hits even harder lower....( like for track)....

Like my installer said yesterday when he drove my car ( though its nothing to the 2000hp 67 chevelle he runs) and got pulled over doing a 100 lol....."that's all anyone needs on the street",evidently it was a handful.

Now I realize thats subjective but I tend to agree and I "think" I can speak for Patriot Six when I say he does too.....its a very nice balance, makes the car nimble like it has a larger engine in it now. I cant even imagine how nimble his 3.55s feel to my 3.15s....

 

[Patriot Six]

Congrats on getting the car up and running. I hope your pest control plan is in effect.

I agree, my car is at a perfect place power wise for a street car. The 3.55s require some throttle modulation from a dig, but that's most high hp cars. From a roll, the 3.55s make for a pretty quick hit and fun car on the street even at part throttle. Overall, I'm happy with the power and think this set up is way more reliable with the Lund tune on less boost. The car is brutal off the hit, but somewhat underwhelming in the higher rpms. That's probably because I just sold a centri SC C6Z, but this kit has tons of potential, if I ever decide to turn it up.

 

[BlueCollarDaily]

This is gonna sound nuts but I wonder about slip a bit, first thing when I hit my car yesterday I noticed was that it trailed off a bit up high, checking air max load I seen it peaking and coming down a bit where it normally doesnt.....
2 variables
1. Edelbrock was out of 3.75 pulleys as EVO bought them all when they realized that keeps the engine from blowing and worked on the combo with Lund, so I had a 3.70 from griptec ( they have taller shoulders) so it simply had zero way of slipping any...
2. Slight increase in rotor tip speed with the 3.70 may have been just enough. If .250 of diameter is 2psi ( 2psi increase between 3.50 to 3.25 for instance ) a .050 not slipping a lick for sure is about a half psi and might have carried it thru a bit better...

But I felt same thing and literally text my best friend last night before I looked at log and said you know it usually carries out a bit better with the feeling of momentum like my centri do ( F2, F1A-94 currently).

Interesting....

 

[Patriot Six]

With the OD balancer and largest blower pulley, I doubt there's any slip. Looking at the boost log from the dyno (which seems off to me), it continues to make boost in the higher rpms almost like a centri. I just don't think this blower is as efficient in the higher rpms as it is making torque. That would probably get a lot better for me with higher octane and a freer flowing exhaust.

 

[BlueCollarDaily]

With the OD balancer and largest blower pulley, I doubt there's any slip. Looking at the boost log from the dyno (which seems off to me), it continues to make boost in the higher rpms almost like a centri. I just don't think this blower is as efficient in the higher rpms as it is making torque. That would probably get a lot better for me with higher octane and a freer flowing exhaust.

I said it was crazy lol....but there is definitely a difference it's the first thing I noticed on a long 3rd gear pull......I'm sure the slight increase in rotor speed just kept it Fed a bit better but I'll look it over, it gets no more wrap than we have hehe....
I run a custom config and somehow MAF hz got left out that would have told me a little more since the MAF lbs min maxes 86.69 at like 6500-6600...

I'm supposed to get my rear suspension bolted on today and camber pushed out as much as I can stock....may not make this weekend but if it's still alive by next possibly get at least some 1000ft times....

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