Rob§

Ok it comes down to either putting the Vitara setup back in the Del Sol or go with the Bisimoto Spec Arias Pistons and Rods

Bisimoto Spec Arias Pistons and Rods $769 Free Shipping
-The pistons are 9:1 for a turbo application.
-They weigh in at 251 grams for the 75.50mm bore size.
-Hi-tensile forged, not cast, billet material (4032 or 261.
-CNC machined working surfaces.
-Optimized crowns for efficient combustion.
-Diamond-turned ellipsoidal skirt profile.
-Turbo/Nitrous pistons feature durable, heavy-duty design Bisimoto Spec.
-Steel rods are manufactured from the very best aircraft quality 4340 steel.
-Using Autocad 14 technology, the Bisimoto Spec. rods are lightweight without sacrifice of strength.
-The Bisimoto Spec. steel rods feature 3/8" diameter ARP8740 bolts and have been tested to over 800 HP on a proper tune. Ideal for street, strip, road race, auto-x, time attack and full power competitions...n/a or boosted.

-The small end bores feature bronze pin bushings for floating pin applications, with 3 (yes, three) oiling holes: perfect for shelf and custom forged pistons, providing amazing lubrication qualities in the most extreme performance applications
-----------------------------------------------------------------------

Vitara Pistons With Custom Length Rods= $ 425+shipping
-8.48 Compression Ratio
-YCP pistons are made from a much more strong cast (AC8a Grade)
-19mm Floating Wrist pins. Will fit aftermarket D16 forged rods.
-T-6 Heat treated for even greater strength.
-Highly resistant to heat.
-Dual (2) oil holes to provide better Wrist Pin Lubrication.
-Teflon coating to provide smoother running, increase piston life,
improve cylinder sealing for less blow by and more power, reduce
friction.
-Help prevent damage from inadequate lubrication, Especially
during cold start-ups.




Help me Decide

91ls-v

vitara and custom length fj rods!! I just ordered my superkit

Rob§

whats your build like?

91ls-v

just going to be a y8 block with fj rods and vitaras with a drag gen 3 or 2 kit that i have. Going to be running a stock head.

ticaaal70

Arias all the way. But if you want to do a cheap build id say go with vitara with the fjt rod. But if your sleeving your block and going with 500 hp+ id say go with the arias + bisimoto spec rod.

Rob§

My build with Vitaras before spinning two bearins resulting in me needing a new bottom end and asking this question in the rebuild phase.

And heres my current parts list:

Tapped the Oil Pan for Oil Return
Mircopolished Crankshaft
FJ Forged Connecting Rods
Vitara Pistons (.40 over)
OEM Head Gasket
OEM Valves
Bisimoto Titanium Retainers
Bisimoto Turbo Springs
Bisimoto Custom 1.8 Camshaft
Bisimoto Anti-slip Adjustable Cam Gear
OEM Valve Gasket
Powdercoated Candy Blue Valve Cover
NGK Sparkplugs
NGK High performance sparkplug wires
Competition Stage 4 6 puck Clutch
255 LPH Walbro Fuel Pump
650cc RC injectors
Bosch Fuel Filter
93 Octane pump Gas
BLOX Performance Intake Manifold
2.5" Intercooler piping
Tial BOV
Ebay FMIC
T3/T4 Turbo
Tial WasteGate
Electronic Boost Controller
Ebay Half Ramhorn Exhaust Manifold
3" Straight Exhaust
MagnaFlow Muffler
3 BAR MAP sensor
NepTune Tuning
Glowshift Blue Digital Boost Gauge
Glowshift Blue Digital Wideband A/F Ratio Gauge
Glowshift Blue Digital Oil Pressure Gauge
Blue Instrument Cluster lighting
Pioneer 7100BT Head Unit
Drilled/Slotted Rotors
Painted Brake Calipers
Sacchi S.55/255 16" Rims
Toyo Proxy 4 Tires (205/40/16)


Tuned at IMW:

700hpsohc

id goo with Vitaras if you are going to drive it a lot. the dule holes Lubricat a lot better

91ls-v

What kinda block are you using?

Rob§

D16Z6

namewasdallas

Didn't you just get this motor tuned the other day and it already spun some bearings?

Rob§

Yes, according to the Haynes man. it tells you to prime the brand new motor until the oil pump kicks off, machine shop said you have to watch oil pressure gauge raise till normal operating pressure. machine shop only told me this after i spun the bearings.... i know its crappy

ReDemoN

Damn dude that sucks.
I say go with the Arias, thats what im gonna order.

I have a ? for anybody that wants to answer.
What does it mean when someone says that there car was tuned to 3xx at 21 degrees.
Does that mean 21 degrees all the way across the board?
Which means its retard from the 32 degrees WOT from factory right?
I am having a problem with my tune.
I have tore up 2 different sets of rod bearings.
Smashed one set the other set just started to knock.
If the timing on my graph is too close to 32 thats bad right.
Im on 25 lbs.
Thanks
Sorry for the thread jack.

Rob§

If i am not mistaken it means the degree the cam shaft is off set

91ls-v

If you just spun the bearings can't you just replace the crank and bearings?

kccord

I voted for Bisimoto, just love his shop and been boosting for a year with his parts with no problems and ready to push some more.

fjt

Both products are good and we love Bisimoto poducts as well (were a Bisi dealer) but to our defense here is my .02 cents

I would go with Vitara setup if you:
1- Want reliable setup w/o hurting your pocket.
2- If you arent shooting for over 500whp or sleeving your block. For the price and the proven good result that vitara pistons and our FJ R spec rods offer its almost pointless to dpend so much money for anything with less than 500whp.

ReDemoN

That is true ^^^

90blackcrx

We use FJT rods and the vitara setup a lot over here, made great power on the setup and they last well.

Rob§

To my misfortune the FJT Spec Connecting rods in #3 and #4 Cylinder turned blue from heat and my machinist doesnt trust using them again and the Vitara pistons i was using had the metal shavings from the bearing scared INTO the cast piston which lead to the scaring of the piston walls so sadly no, i can not just reuse them


As i stated before my setup contained the 75.5mm Vitara Setup with your FJT custom length connecting Rods and i loved the set up, and i would go with it again in a heart beat. i'm just scared the same thing will happen if some how a bearing spins again



Thanks to all those that have provided input i greatly appreciate it!!!!

Slo-mo

I voted for the Arias combo. Im actually planning on picking the same combo up in a little while here once i get my money together but that is beside the point. I know alot of people have had good luck with the vitaras but I just dont feel comfortable using a factory style cast piston in my build I would rather spend the extra money in something I knew was made to handle a performance set-up and not have to pay to fix it down the road. Since this is your second time around with this build I would do it right.Just my 2 cents.

Rob§

Thanks, Good point Slo-mo

rat city rex

Maybe I missed it, but what block, and oil pump were you using last time when you spun your bearings? Also just because you decide to go with a diff. setup dosent mean you wont spin another. So did you build/assemble your last setup? Spun bearing can be totaly prevented. Pesonaly, I wouldnt go with that machinest. Its not the rods that caused the bearing to spin. Eather lack of oil, or wrong sized bearings. I would look more into that than anything elses. I tell you what, I checked my bearings, and then I rechecked my bearings, and then for ***** and giggles, I check them again to make sure I had the wright sized ones. Its all about prep work and keeping everything clean.


But at the end of the day, I still would rock the fj/vit combo for anything under 500hp.

Rob§

Im using the D16z6 Engine and original oil pump. i never mentioned anything about the rods causing the spun bearing, i did mention that the machinist told me after the fact that i was suppose to crank the engine with no ignition until the oil pressure needle moved to normal range before starting the engine, but the Haynes man. says crank til the oil pump kicks off which is what i did...... either way the machinist i go to builds racing engines so i trust their work it could have easily been my fault for not building enough oil pressure before starting the motor.

Thanks for the info tho!!!

rat city rex

So did it spin the bearing right away?

ReDemoN

Im selling my LS I-beams and 75mm vitaras.
Just though I would tell you.