Viper's engine swapped B16A2 OHC - Now Turbo Charged!!

[nitroxx]

DOCTORQUE...KUNAL is that you??? well wheres my porsche drive buddy? we gotta hook up for that one this week.
@VIPER: SO CAMS AND EVERYTHING HUH? GOIN FOR THE BIG KILL???

[moralfibre]

I think doctorque works at Navnit BMW. At least his profile says he does.

Nice job with the valve cover Viper.

[HPP]

Originally Posted by DocG

now that is one magnificent engine bay...love the logo there very subtle
how does the car corner now after the fittment of the LSD?! What is the LSD ratio?

Originally Posted by doomsday

Nice valve cover. Looks very JDM. BTW is the LSD 1-way or 1.5-way??

It's not an actual LSD, just seeing one of these is a blast from the past. I haven't seen one of these used in at least 6 or so years. In any case, they work well up to a point(HP..), but they do wear out over time. Here is a copy/paste from Phantom Grip's website:

" The Phantom Grip LSD, otherwise knows as Limited Slip Differential, conversion kit, installs into your non-lsd differential converting it into a proven and competitive limited slip differential that enhances your traction needs. It serves two distinctive functions for the daily driver, street/strip warrior, or full race vehicle. In cornering and braking, it functions as a disc-type limited slip. In hard acceleration, the Phantom Grip works as a locker causing both wheels to receive equal power instead of just one wheel spin."

[doomsday]

Originally Posted by HPP

It's not an actual LSD, just seeing one of these is a blast from the past. I haven't seen one of these used in at least 6 or so years. In any case, they work well up to a point(HP..), but they do wear out over time. Here is a copy/paste from Phantom Grip's website:

" The Phantom Grip LSD, otherwise knows as Limited Slip Differential, conversion kit, installs into your non-lsd differential converting it into a proven and competitive limited slip differential that enhances your traction needs. It serves two distinctive functions for the daily driver, street/strip warrior, or full race vehicle. In cornering and braking, it functions as a disc-type limited slip. In hard acceleration, the Phantom Grip works as a locker causing both wheels to receive equal power instead of just one wheel spin."

Hmm. I understood it was some kind of bolt-on conversion kit, coz I know of a LSD as a complete integrated diff unit. Didn't know a bolt-on like this exists. It should be sufficient for the street and straight line- but the excerpt also says that it works during braking as well.... I am guessing they mean deacceleration, which means it will work like a 1.5 or 2-way LSD.

@viper- can u shed some light on this?? Very interesting piece of kit this thing...

[Cyrus43]

So this thread gets started up again. Hmm i was wondering how come things were all quiet at the RoakStar front. LOL
Nice work jiggs. As usual.

[HPP]

It basically is installed in the center of the open/non limited differential between the two sides/spider gears, on the main shaft. If I remember correctly(been a long time..), you pull the metal tabs off the sides of the unit and it springs out and puts pressure on both sides/spiders gears and in a sense locks them. But because they are not technically locked, only have pressure on them, they still can rotate freely when needed.

This is all off the top of my head.. from memory, so if I am off a bit, I apologize, but I think I'm pretty close.

[moralfibre]

Jiggs, check this B16 build - Shortly after finishing the installation of the 2.

Its crazy!!

I believe that 280 whp is obtainable with a combination of better atmospheric conditions and a more scientifically designed induction tube/filter combination, but I can tell you this from experience.....engines that exhibit torque "bulges" like this at the bottom of the gear accelerate like there's no tomorrow....and of course, the car's even more fun to drive now.

All this is with an NA B16.

[HPP]

Originally Posted by moralfibre

Jiggs, check this B16 build - Shortly after finishing the installation of the 2.

Its crazy!!



All this is with an NA B16.

Yes, but NA builds which make good power are a lot of the times more expensive of a build then just turboing the car. At that point, I just do not see the reasoning other then some people just love NA for some reason. And when you get that kind of power out of NA applications, the longevity of the motor is an issue as well(from experience with customers who chose to go that route.. against our best try to get them into the turbo world :P ).


In any case, Viper, when you get the VTEC working you should see some very good power gains when the VTEC lobes are activated. They are very aggressive(comparatively speaking) and react well with the addition of turbos.

[viper]

Originally Posted by doomsday

Hmm. I understood it was some kind of bolt-on conversion kit, coz I know of a LSD as a complete integrated diff unit. Didn't know a bolt-on like this exists. It should be sufficient for the street and straight line- but the excerpt also says that it works during braking as well.... I am guessing they mean deacceleration, which means it will work like a 1.5 or 2-way LSD.

@viper- can u shed some light on this?? Very interesting piece of kit this thing...

Hi,

you got it absolutely right. This solves my purpose as this is a daily drive car for 95% of the time and will almost never see a track unless one comes up around Mumbai.

This also is far cheaper than the other type(almost 1/5th the cost).

Viper

[Technocrat]

Phew just when I thought the upgrade is over

Viper, the cover with your logo looks really nice.

[doomsday]

Originally Posted by HPP

It basically is installed in the center of the open/non limited differential between the two sides/spider gears, on the main shaft. If I remember correctly(been a long time..), you pull the metal tabs off the sides of the unit and it springs out and puts pressure on both sides/spiders gears and in a sense locks them. But because they are not technically locked, only have pressure on them, they still can rotate freely when needed.

This is all off the top of my head.. from memory, so if I am off a bit, I apologize, but I think I'm pretty close.

Ok. So more power means that their abilities will decline rather quickly, the inertia being enough to overcome the springs and spin each wheel freely. Considering the cost (which Jignesh says is 1/5th of a conventional unit) I think it is superb for vehicles that aren't gonna to be used for time attacks but for street applications.

@HPP- Are u aware if these will work as a limited diff only under positive load (acceleration) or no load/overrun (coasting/deacceleration)?

[V-16]

Originally Posted by moralfibre

Jiggs, check this B16 build - Shortly after finishing the installation of the 2.
Its crazy!!

Thanks for this link Kiran. Made quite a read!!

[JayD]

Dosen't ford rocam's car have an integrated LSD?? If so, is it a different version of the B16??

[doomsday]

Originally Posted by JayD

Dosen't ford rocam's car have an integrated LSD?? If so, is it a different version of the B16??

The B16B in the JDM EK9 Civic Type R had a LSD as standard- producing 185bhp. Apart from it I don't know if any other B16s came with LSDs. AFAIK Rocam's engine isn't a Spec-R.

[HPP]

Originally Posted by doomsday

Ok. So more power means that their abilities will decline rather quickly, the inertia being enough to overcome the springs and spin each wheel freely. Considering the cost (which Jignesh says is 1/5th of a conventional unit) I think it is superb for vehicles that aren't gonna to be used for time attacks but for street applications.

@HPP- Are u aware if these will work as a limited diff only under positive load (acceleration) or no load/overrun (coasting/deacceleration)?

It would work the same in all driving conditions. It continuously applies the same amount of pressure in all situations, so it would essentially be locked(or mostly locked) at all times.