DuracellTTU Build: 280/288 Cams, Lang Head, CSL Airbox, Full SS w/ Dyno Results

[duracellttu]

Awesome build. Can you comment on changes (broadly speaking) you guys had to made to the CSL tune to accommodate this hardware? How was the AFR pre-tune? Thanks for posting.

I asked Paul Claudes to share the details of the tune modifications, but he he was very reluctant to do so. This is his trade and he didn't want to share his secrets. What I did notice from the dyno charts is that the AFRs post hardware mods, but pre-tune were running very lean. This setup was providing a lot more air to the engine, the gains came as we added more fuel across the RPM band.

Very nice build and numbers!

Have a very similar build to you as well (SS catless, 280/272 cams, 12:3:1 comp), and had Hassan tune my car.
Made 363whp, but our crappy 91 Octane and higher compression here was the limiting factor.

Would be very interesting to run a higher grade octane or Ethanol blend (will have to wait for the border to open to get to the states). Was told that there was probably another 30-40whp left on the table.

Wow, those are impressive numbers. I was also running 91 octane. Do you attribute the ~23 rwhp difference between our two setups strictly to the compression differences?? Stock compression at 11.5:1 vs your 12.3:1??

[mainstreamer00]

You should post that dyno in this thread: https://nam3forum.com/forums/forum/m...s-280-272-cams

Noted ^ I’ll get around to it shortly

[Obioban]

Correct

You should post that dyno in this thread: https://nam3forum.com/forums/forum/m...s-280-272-cams

[mainstreamer00]

Sae dynojet?

Correct

[Obioban]

Very nice build and numbers!

Have a very similar build to you as well (SS catless, 280/272 cams, 12:3:1 comp), and had Hassan tune my car.
Made 363whp, but our crappy 91 Octane and higher compression here was the limiting factor.

Would be very interesting to run a higher grade octane or Ethanol blend (will have to wait for the border to open to get to the states). Was told that there was probably another 30-40whp left on the table.

Sae dynojet?

[mainstreamer00]

Very nice build and numbers!

Have a very similar build to you as well (SS catless, 280/272 cams, 12:3:1 comp), and had Hassan tune my car.
Made 363whp, but our crappy 91 Octane and higher compression here was the limiting factor.

Would be very interesting to run a higher grade octane or Ethanol blend (will have to wait for the border to open to get to the states). Was told that there was probably another 30-40whp left on the table.

[ethan]

Awesome build. Can you comment on changes (broadly speaking) you guys had to made to the CSL tune to accomodate this hardware? How was the AFR pre-tune? Thanks for posting.

[Ob917]

Seems like a flex fuel controller would be perfect to get you to the next level. My car isn't modified as much as yours and if it was I'd be using e60 for sure. It sucks the rare times I have to put regular 91 in mine, totally spoiled running the corn stuff.

[duracellttu]

Nice build! It’s hard to hang in there as an original owner. I’ve been thinking about selling my E90 M3. This thread will help convince me to keep it!

Glad to hear this convinced you to stick with your e90 M3! Technically, I am the 3rd owner. The first two owners only had it for a year each and I purchased it in 2007, while it was still under factory warranty with only 15k miles on it.

I have countless hours of research and labor into this car. Starting over on a new platform just didn't make sense. This car has been completely personalized and customized to me. No other stock car in my budget can match it. The only car I'd want to move to is a GT3, but that won't be anytime soon.

[bigjae46]

Nice build! It’s hard to hang in there as an original owner. I’ve been thinking about selling my E90 M3. This thread will help convince me to keep it!

[duracellttu]

I'd mail you some proper 93 octane with a solid 10% ethanol in it if I had a hazmat license It's good to see your build come to fruition. 340whp is quite impressive. I the math for you and you've got some parasitic loss mods on so I'll do 12%-15%. At the crank you're making 386-400hp. You're achieving 120-125hp per liter. That's about as efficient as a GT3 RS. Hopefully this makes you feel even better about your build because I'm that number is the GT3 being on at least 93. You're doing real well and have much more to go with just a tune and fuel. Good luck and congratulations on the build.

Thanks for the encouragement! Your math lines up with my original calculations and goals for this build. I was aiming for 125 HP/L, like the GT3 RS achieves. As you said, I'm pretty much there and have hit my target. It only goes up from here! Hoping to have Dinan TBs before my next tune with 93 octane, but that is a few years down the road since I'll be in CA for until 2023.

[Arith2]

I'd mail you some proper 93 octane with a solid 10% ethanol in it if I had a hazmat license It's good to see your build come to fruition. 340whp is quite impressive. I the math for you and you've got some parasitic loss mods on so I'll do 12%-15%. At the crank you're making 386-400hp. You're achieving 120-125hp per liter. That's about as efficient as a GT3 RS. Hopefully this makes you feel even better about your build because I'm that number is the GT3 being on at least 93. You're doing real well and have much more to go with just a tune and fuel. Good luck and congratulations on the build.

[duracellttu]

Sounds good.

May I ask where you are sourcing the CLS king pins? There was some speculation on the old M3F that the CSL kingpins currently for sale are not the same as the pieces that were used in vehicle production. I seem to recall the thread was pretty old, and things may have changed since then. I cannot now find a cached version of the thread to refer to.

Jesse

I was able to source my CSL king pins from ECS tuning. There is a good explanation of the differences in the thread below.

https://nam3forum.com/forums/forum/m...rmation-thread

[D-O]

Sounds good.

May I ask where you are sourcing the CLS king pins? There was some speculation on the old M3F that the CSL kingpins currently for sale are not the same as the pieces that were used in vehicle production. I seem to recall the thread was pretty old, and things may have changed since then. I cannot now find a cached version of the thread to refer to.

Jesse

[duracellttu]

Thanks for all the kind words everybody! This build was a huge effort, hours of research and coordination, but totally worth it. Can't wait to retune with 93 octane to see what else she has.

Very nice, sir. I am looking forward to seeing what you do next.

Jesse

I plan to keep this thread updated along the way to include all the little projects I add along the way. The next big project has already been planned, just purchasing parts in phases. Brembo 996 BBK, wheel bearings on all 4 corners, CSL king pins, and new spring/sway bar setup for "flat ride". Stat tuned!