big turbo stock block thread
 

Resource thread for big turbo STOCK blocks

This is not meant to be a cut and dry this is what's ok thread. Its a guideline/ball park figures other people are running on stock blocks. If you blow your engine because you copyed what smeone else is running then lawls.

What you guys pushing? I.e timing/boost/fuel on the stock block

91 + 2.5 gal e85
Do7 pre tb / Do1 pre turbo
100 percent meth
17 deg to RL
6031@27psi
400 g/s RL


chinacharger bt@ 50k miles
6031 bt @ 61k miles
current mileage 64k
Running strong =)

92/2.5 gallons E85
t3 3076r
16* up top
20k+ miles on BT 75k on the car


Car pulls like a freight train

What psi eric?

Ive been running 26psi. Im doing seals and other shit then retune til I max my injectors out or get the 5th port installed. Whichever comes first and im hoping its the 5th port being installed.

nub.

http://www.mazdaspeedforum.org/forum/foru...threads-61143/


Edit: lolololol

that thread sucks and is old

c'mon needz moar info, where's everyone at? @Daddy Chinkus How many miles have you been BT? Ebay turbo and all. When/if there is enough info in here this thread should be made a sticky.

Before I was BT I ran reworked for 30k fully bolted. 330whp&374wtq my car is abused lol

Before building I ran

superstocker 24psi
16* @ rl
70/30 meth do7
aprox 10k
made about 320/380


then
t3 3076 .82 (22psi)
do7 70/30
16* @ rl
aprx 5k miles
made 420whp

Good shit guys!

93/2 gallons E85
ATP(:thumbsdown:) GTX76
20.5* up top
23-25psi
15k+ miles on BT 55k on the car
~430whp

What if you have a lil turbo? :)

fixed

Out of (noob) curiosity, and to have this info in this thread, what's the advantage of going reworked, and how much would it cost?

EDIT: Im loving this thread :headbang:

Its fail imo and it came on my car. From what I have read its 900 for one and at best they do a lil more up top and imo its not even noticeable.

hahaha i would love me some 20.5 timing up top!!! 91 shit ghes =[

Currently have 1k on turbo 22k on car.
93/2g E85 + Do7 in cold pipe 80/20 mix
17 deg at RL
GTX3071r@24.5psi
370g/s @ Redline. VD shows 409hp 408tq w/ 1.01 CF

Your using meth and e85 tho.

Running GTX3071r at 24psi
200 on turbo, 51k on car
Will be running 91/E85 2.5gal mix
Tune still in progress

ATP 3076
93 for 18k @16*
5050/100 meth D07
93/E30 3k @19.5*
100 meth D10
26psi on the regular

430/464

@superskaterxes what did your egts look like on that atp hotside at that psi?

i never broke ~1700

2009- 32k miles with 500 on the turbo
GT3076 ATP hotside
21psi and 13 degrees currently
91/ 2.5g E85
Still tuning....will update once done

93 with 4 gal E
M10 meth nozzle with 100% VP Racing M1
ATP GTX3071

Boost Targets from 2500-7000:
Ignition Timing from 2000-7000:

EGT ~1630°F peak on 4th gear pull from 2k to RL

http://i77.photobucket.com/albums/j6...031412-1VD.jpg

Need to get to a dyno soon...

.5557 with billet wheel 4''inlet .63 hotside
93 octane
recently switched from sandback to ap ( huge difference!)
so currently tuning only at 21 psi, should be back to 26psi after fifth port
going with 5th port injection soon

been bt 15000 miles no problems

@dturboman spill the beans

the engine let go last night while driving on the turnpike... no hole on block but bent a rod:(

:( so what are your plains with it now?

It was just a matter of time at those boost and power levels.

was not even in power when it happen, was doing 50 through a construction zone and it let go.

Looks like its going to be built now.

Sad to see it give....you pushed that little 3071 hard. Any thing seem off before it went.

I had the AP hooked up a few minutes before it happened, and I was seeing more than usual PT knock, but it would just come and go as if the engine was maximizing fuel mileage, few minutes later it jerked hard and the clutch pedal was vibrating hard.

so it looks like there was no way to prevent it... it was just its time.

Gay..it went out like a little bitch. Wot always...have you learned nothing...Jk can't wait to see you back up again

yeah man it sucks this could not have happened at a worse time.

the miles and the power took its toll on her, now we know 160k and high boost(28-32psi) will last just not forever.

going to do rods, pistons and new bearings, hopefully total with machine will be under 3k

Damn sucks, then again your car was a trooper 160kmi and at 30 psi lol beast.

Sent from my DROID4 using Tapatalk 2

Stress over time on the rods weakens and they slowly deform. I don't want to bring back the S/N curve for metals but while there are some cars running around at 400+whp and especially high low end torque with a stock bottom end IMO even with the best tune you're on borrowed time. We've seen this time and again. That's not unreasonable given that's almost double factory rated hp and @dturboman here was running more than that.

GL with the build

Well here are the specs when it was running

Gt3071r with back half ported and coated.
22.5* max timing
625ML & 375ML nozzle running 100% meth
c16/93 mix
31-32.5PSI
518 whp 497tq

ran 11.9@ 123.4 on 26psi and 450whp

dude wtf is this shit? take your chit chat outa here, cleaning up in 1 day

FYI,

Here is my BT with stock block dyno thread:

http://www.mazdaspeedforum.org/forum/foru...7-9wtq-110833/

Just Installed...

GTX3076 / IWG
24psi
17* at RL
50/50 E85
100% Meth, D05
About 500 miles on current setup.
39k on Motor, And Beat the Shit out of it Daily!!

http://i1217.photobucket.com/albums/...73gz/24psi.jpg