FBM 8.8 IRS Rear Diff Conversion - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Do Boy · 03-19-2013, 11:27 PM

Shut up and take my money!

FullBlown · 03-20-2013, 12:24 AM

We've used this setup in many s2k's, which makes similar HP and Tq numbers without an issue. Only time I have see any type of failure was from aluminum cases twisting under load. We always recommend to use a steel case.

Tansey86 · 03-20-2013, 01:17 AM

Quote:

Originally Posted by FullBlown

We've used this setup in many s2k's, which makes similar HP and Tq numbers without an issue. Only time I have see any type of failure was from aluminum cases twisting under load. We always recommend to use a steel case.

So you guys make a built engine, a built rearend. Now the only real thing to worry about is the tranny. Do you guys plan on offering a solution if that becomes a weak point aswell?

extreme-86 · 03-20-2013, 04:52 AM

Full Blown have quite a lot of experience with the 8.8 rear-end in the S2000 world, with examples running in the 8's and 9's

Nice to see this development taking place on the FR-S/86/BR-Z platform

V160 or R154 swap could be interesting

Captain Insano · 03-20-2013, 05:41 AM

The speed with which the aftermarket has evolved for this car is pretty amazing. Gonna be a fun tuner car... :-)

FullBlown · 03-20-2013, 11:17 AM

We have no plans for a trans solution yet. We'll see how everything goes first.

Huehuecoyotl · 03-20-2013, 11:22 AM

at what HP/TQ does the OE one start to fail?

buditjoenawan · 03-20-2013, 11:43 AM

Quote:

Originally Posted by FullBlown

We have no plans for a trans solution yet. We'll see how everything goes first.

Just thinking ahead.

If 450lb-ft launches, 2800lb car, 1.3sec 60ft destroys factory 5 speeds. Then your shop car is pretty close. :-D

budi

jshadeck · 03-20-2013, 11:52 AM

Id really like to see the stock trannys breaking point before id even think of a v160. 2-3x the weight maybe? And if i recall it was roughly 30" from the bellhousing to the shifter... Not to mention enlarging the tunnel would most likely be required (went thru all this with one of my mk3 supras)

King Tut · 03-20-2013, 02:36 PM

Don't think I will be needing this part, haha.

SmsAlSuwaidi · 03-20-2013, 03:40 PM

Quote:

Originally Posted by FullBlown

We have no plans for a trans solution yet. We'll see how everything goes first.

i was wondering what about the axles, cause I'm worried about those after seeing E.kanoos 2j 86 blow them on the drag strip

FullBlown · 03-20-2013, 03:53 PM

We are working with DSS to get the axles made

XPR Small Block · 03-20-2013, 03:58 PM

theres no way id pay 3000 for a ford rear end specially a 8.8 as soon as a good amount of torque hits it, it will go just like the scion diff, if i was to use anything other than a dana 44 pumpkin as used in the corvettes from the 60's on up to the 80's, it would be the ford 9 inch specially if your already customizing the pumpkin to fit under the car just my opinion but the dana 44 is alot more strong, i mean there is a reason why everyone love the 9 in.. the 8.8 doesnt handle much abuse same goes for gm 10 bolt rear axle both were fit under stock pony cars both are garbage in the pony world every one i know got rid of both axle asap for the ford 9 inch, or a dana 44 or for more power apps even a dana 60

FullBlown · 03-20-2013, 04:04 PM

we have tons of these kits on 2.0L-2.2L making 800-1000hp+ without any issues. These cars are going anywhere from 10's - 8.50's in the quarter.

I'm sure a lot of big block domestic guys are breaking these , but this has been tested and proven for what we are doing.

03-20-2013, 11:52 AM	#37
jshadeck Senior Member Join Date: Nov 2012 Drives: 2013 Scion FR-S Whiteout 6MT Location: carlisle, pa Posts: 773 Thanks: 3 Thanked 221 Times in 163 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	Id really like to see the stock trannys breaking point before id even think of a v160. 2-3x the weight maybe? And if i recall it was roughly 30" from the bellhousing to the shifter... Not to mention enlarging the tunnel would most likely be required (went thru all this with one of my mk3 supras) __________________

03-20-2013, 02:36 PM	#38
King Tut NASA SpecE30 Racer Join Date: May 2012 Drives: 2006 Honda S2000 Location: Gulf Breeze, FL Posts: 7,279 Thanks: 607 Thanked 5,759 Times in 3,055 Posts Mentioned: 274 Post(s) Tagged: 10 Thread(s)	Don't think I will be needing this part, haha. __________________ - King Tut Street/Track Car: 2006 Honda S2000 TT3 \|\| Race Car: 1987 BMW 325is SpecE30 \|\| Tow Vehicle: 2014 RAM 1500 EcoDiesel Sold Cars: 2012 BMW M3 \|\| 2013 Subaru BRZ \|\| 2012 Porsche Cayman R \|\| 2009 Chevrolet Z06 \|\| 2009 BMW M3 \|\| 2004 BMW M3 \|\| 2004 Nissan 350Z

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03-20-2013, 12:24 AM	#30
FullBlown Senior Member Join Date: Sep 2012 Drives: Scion FRS Location: MN Posts: 1,171 Thanks: 242 Thanked 2,026 Times in 548 Posts Mentioned: 298 Post(s) Tagged: 4 Thread(s)	We've used this setup in many s2k's, which makes similar HP and Tq numbers without an issue. Only time I have see any type of failure was from aluminum cases twisting under load. We always recommend to use a steel case.

03-20-2013, 04:52 AM	#32
extreme-86 Member Join Date: Jan 2012 Drives: 86, Nissan 200SX, Honda Civic Location: South Africa Posts: 76 Thanks: 0 Thanked 33 Times in 20 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Full Blown have quite a lot of experience with the 8.8 rear-end in the S2000 world, with examples running in the 8's and 9's Nice to see this development taking place on the FR-S/86/BR-Z platform V160 or R154 swap could be interesting

03-20-2013, 05:41 AM	#33
Captain Insano Senior Member Join Date: Sep 2012 Drives: 2014 Jeep Wrangler RubiconX Location: Midwest, USA Posts: 1,282 Thanks: 110 Thanked 292 Times in 224 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	The speed with which the aftermarket has evolved for this car is pretty amazing. Gonna be a fun tuner car... :-)

03-20-2013, 11:17 AM	#34
FullBlown Senior Member Join Date: Sep 2012 Drives: Scion FRS Location: MN Posts: 1,171 Thanks: 242 Thanked 2,026 Times in 548 Posts Mentioned: 298 Post(s) Tagged: 4 Thread(s)	We have no plans for a trans solution yet. We'll see how everything goes first.

03-20-2013, 03:53 PM	#40
FullBlown Senior Member Join Date: Sep 2012 Drives: Scion FRS Location: MN Posts: 1,171 Thanks: 242 Thanked 2,026 Times in 548 Posts Mentioned: 298 Post(s) Tagged: 4 Thread(s)	We are working with DSS to get the axles made

03-20-2013, 03:58 PM	#41
XPR Small Block Member Join Date: Feb 2013 Drives: Scion Frs Location: Santa Rosa, Ca Posts: 70 Thanks: 21 Thanked 9 Times in 8 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	theres no way id pay 3000 for a ford rear end specially a 8.8 as soon as a good amount of torque hits it, it will go just like the scion diff, if i was to use anything other than a dana 44 pumpkin as used in the corvettes from the 60's on up to the 80's, it would be the ford 9 inch specially if your already customizing the pumpkin to fit under the car just my opinion but the dana 44 is alot more strong, i mean there is a reason why everyone love the 9 in.. the 8.8 doesnt handle much abuse same goes for gm 10 bolt rear axle both were fit under stock pony cars both are garbage in the pony world every one i know got rid of both axle asap for the ford 9 inch, or a dana 44 or for more power apps even a dana 60

03-20-2013, 04:04 PM	#42
FullBlown Senior Member Join Date: Sep 2012 Drives: Scion FRS Location: MN Posts: 1,171 Thanks: 242 Thanked 2,026 Times in 548 Posts Mentioned: 298 Post(s) Tagged: 4 Thread(s)	we have tons of these kits on 2.0L-2.2L making 800-1000hp+ without any issues. These cars are going anywhere from 10's - 8.50's in the quarter. I'm sure a lot of big block domestic guys are breaking these , but this has been tested and proven for what we are doing.

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