Manual 135i Runs a 10 Second 1/4 Mile Pass @ 136mph! - JB4tech.com

suspenceful · 09:57 AM

I finally made it to the 10 second club! One of four(?) N54-powered vehicles in the 10's with a manual transmission.

Follow me on Instagram: https://instagram.com/jakespence
Subscribe on YouTube: https://youtube.com/jakespence135

Stock motor
Stock transmission
Stock differential
Stock axles

2008 BMW 135i 6-speed Manual
Doc Race single turbo 6266
JB4 map 7 (28psi)
MHD backend flash (*****)
Doc Race intake manifold w/ port injection (72lb)
Precision Raceworks stage 3+ LPFP
VRSF 7.5" race intercooler
Custom 3" exhaust
Precision Raceworks ignition coils
NGK 97506 @ 0.022"
Pump E85

2560 DA - Log attached

If you want to watch the whole process and how I eventually ran the 10 sec pass, watch the video below. Otherwise if you just care about the results, slip is below

Gonna work on chopping that 60ft down and improve shifts to knock it down even further.

Dragy slip from the same run:

Payam @ BMS · 06-27-2019, 10:33 AM

Awesome man! That's not an easy feat. Congrats on the numbers, truly impressive.

Prototype007 · 06-27-2019, 10:57 AM

Very nice and beautiful ride!

suspenceful · 06-27-2019, 11:20 AM

Quote:

Originally Posted by Payam @ BMS

Awesome man! That's not an easy feat. Congrats on the numbers, truly impressive.

Thanks Payam!

Quote:

Originally Posted by Prototype007

Very nice and beautiful ride!

Thank you!

DamnDatsun · 06-27-2019, 11:22 AM

Did you use boost by gear in the jb4? Love your videos.

Vorsprung_CJB · 06-27-2019, 12:12 PM

Paging Sticky

suspenceful · 06-27-2019, 01:27 PM

Quote:

Originally Posted by DamnDatsun

Did you use boost by gear in the jb4? Love your videos.

Nope, but I will note that this turbo doesn't hit full boost until 3rd gear. Targeting 28psi, it was only able to hit 22psi in 1st gear and 24psi in 2nd gear. Thanks for watching!

deltalima0 · 06-28-2019, 05:31 AM

Congrats! Welcome to the 10 second club. I am really surprised you are on stock axles now that is a feat, I would have figured the axles would have gone by now.

Congrats again I know the trek to the 10s are not easy and people just think throw upgraded turbos in and have FBO mods and your there but they forget the fine details of fueling, Drag radials, upgraded axles in my case, dialing in tuning and the constant upkeep that a car pumping 700 plus horses require to keep the gremlins away.

Keep it up and I love your channel.

suspenceful · 06-28-2019, 08:54 AM

Quote:

Originally Posted by deltalima0

Congrats! Welcome to the 10 second club. I am really surprised you are on stock axles now that is a feat, I would have figured the axles would have gone by now.

Congrats again I know the trek to the 10s are not easy and people just think throw upgraded turbos in and have FBO mods and your there but they forget the fine details of fueling, Drag radials, upgraded axles in my case, dialing in tuning and the constant upkeep that a car pumping 700 plus horses require to keep the gremlins away.

Keep it up and I love your channel.

Thanks man! I've already sheared two axles, but just replaced them with $60 junkyard OEM units.

I appreciate the support

codesx · 06-28-2019, 09:25 AM

Epic!

Side topic;
Your Docrace intake manifold is of an interesting design.
Did they provide any documentation on air flow, pressure or vacuum at the different points?

suspenceful · 06-28-2019, 10:00 AM

Quote:

Originally Posted by codesx

Epic!

Side topic;
Your Docrace intake manifold is of an interesting design.
Did they provide any documentation on air flow, pressure or vacuum at the different points?

I'm not too sure, check out their website or look up the production threads on some forums.

Terry @ BMS · 06-28-2019, 10:12 AM

This makes me want to get our white 135i MT back to the dragstrip!

codesx · 06-28-2019, 10:59 AM

Quote:

Originally Posted by Terry @ BMS

This makes me want to get our white 135i MT back to the dragstrip!

She is a crazy beast!
Let Payam know if you are turning up the boost him

Terry @ BMS · 06-28-2019, 03:57 PM

Jake this log is with that clutch slippage device?

NA55 · 06-28-2019, 07:37 PM

Good job on the 10 second pass.

What tires and size are you using?
What tire pressure?

suspenceful · 06-30-2019, 07:06 PM

Quote:

Originally Posted by Terry @ BMS

Jake this log is with that clutch slippage device?

No - it's not. Why?

Quote:

Originally Posted by NA55

Good job on the 10 second pass.

What tires and size are you using?
What tire pressure?

Thanks! I am running 275/40/17 Mickey Thompson ET Street R tires at 16psi warm.

NA55 · 06-30-2019, 07:21 PM

Does the Xtreme Twin Disc clutch allow enough slip to take advantage of the clutch delay solenoid? I’m using a M-Factory Twin Disc and have thought about the clutch delay, but it seems to be a little too grabby.

Riceball777 · 07-01-2019, 01:21 AM

Sick car!!! I watch and love all your you tube videos.

suspenceful · 07-01-2019, 07:02 AM

Quote:

Originally Posted by NA55

Does the Xtreme Twin Disc clutch allow enough slip to take advantage of the clutch delay solenoid? I’m using a M-Factory Twin Disc and have thought about the clutch delay, but it seems to be a little too grabby.

The clutch delay solenoid can go reallllllly slow, so I think so. But I couldn't get it to work right. When I dialed the slip to be very slow, it started to affect the clutch during shifting (when it was supposed to be OFF). I've heard it is because it's the MAP Performance device and not the true version from Magnus Motorsports.

Quote:

Originally Posted by Riceball777

Sick car!!! I watch and love all your you tube videos.

Thanks man! I appreciate the support.

TimboBlackkers · 07-09-2019, 04:33 PM

Love the vids Jake. Keep it up.

I definitely think that car can go sub 10.5!

When are you hitting the track again?

Payam @ BMS · 07-09-2019, 04:42 PM

Quote:

Originally Posted by codesx

She is a crazy beast!
Let Payam know if you are turning up the boost him

I'm not good with 1/4 mile. I can't launch, I'm not good at pedal modulation.
Terry is very experienced with the 1/4 mile so he'll do that. I just do the 1/2 mile stuff cause he doesn't want to go 170mph+

luchocamp · 07-09-2019, 05:35 PM

Congrats .... 139mph is amazing fast 30psi N54 is strong !
Keep it up

suspenceful · 07-10-2019, 08:09 AM

Quote:

Originally Posted by TimboBlackkers

Love the vids Jake. Keep it up.

I definitely think that car can go sub 10.5!

When are you hitting the track again?

Thanks! I think I can get closer to 10.5 as well. I'd like to go back in the next month or so, but would be faster if I wait until the weather gets colder in September.

Quote:

Originally Posted by luchocamp

Congrats .... 139mph is amazing fast 30psi N54 is strong !
Keep it up

Thanks! I see you on the Dragy boards and on Instagram. You've got the short track down for sure, which is what I need to work on.

Raginge93 · 07-18-2019, 11:55 PM

Nice. Congrats on 10s! Btw, I would love to know the specs on your drag wheels.

suspenceful · 07-19-2019, 07:47 AM

Quote:

Originally Posted by Raginge93

Nice. Congrats on 10s! Btw, I would love to know the specs on your drag wheels.

Thanks! The rear wheels are OEM BMW Style 68s from the rear of an E46. They have 275/40/17 Mickey Thompson ET Street R tires on them.