BT/BAT guys-- would you do it again?

[Kyle H]

I've noticed a couple of guys who are BT or BAT over the past couple of weeks/months saying that they don't know if it was worth the time and money, 1, because of reliability problems, or 2, because they never get to fully use the power unless they pay for a track day.


So I ask you guys who are BT, do you think it was worth the $5k+ for that extra power? if you could do it all over again, what would you do differently?

[AudiA4_20T]

After driving in a BAT, its so worth it lol

to be honest, I think getting a spare motor and working on that makes the difference, so slowly but surely you have it all done

[Don Supreme]

I've noticed a couple of guys who are BT or BAT over the past couple of weeks/months saying that they don't know if it was worth the time and money, 1, because of reliability problems, or 2, because they never get to fully use the power unless they pay for a track day.


So I ask you guys who are BT, do you think it was worth the $5k+ for that extra power? if you could do it all over again, what would you do differently?

Track day? I used to squeeze that shit every morning on the on ramp ..... 100 MPH comes up real fast,

[Avant1.8BT]

so worth it. make sure you go big right away. i wish i did a 30r to begin with, but i love my elim set up, still makes the car move pretty good.

[goody6691]

hell yeah.........only, i would do it right the first time

[bassed]

Have you seen my videos? I was enamored with my BT and am more than so with my BAT. Reliability? Yeah some people had problems. I had problems with manifolds, until the SPA piece came out and I've been Daily Driving it now for the better part of 7 months and have over 8k on this setup. I got a base tune file and drove 500 miles for custom tuning with no issue, I then drove to Georgia from Pa 3 weeks after that for a lovely 1200 mile trip.

If I was to do it over again with all I've learned I would:
1) Buy a spare motor (complete)
2) Buy all parts slowly, but keep the list the same
3) Build it myself and have a machine shop locally do overbore etc...

[Poopie]

i am in the process of doing it again

[bassed]

i am in the process of doing it again

Not by choice though, random accident kinda sparked this

[JumboBlack1.8]

I'd do it again, but only if I did it differently.....i started building before I had all the parts together.

WHEN/if i do it again (ie, go bigger).....i'm definitely buying a spare motor

[Don Supreme]

I have a AEB short block if anyone is interested.....

[mike-2ptzero]

I have done it a few times and dont regret it at all. Plan on going even bigger once I can afford it.

[bassed]

I have done it a few times and dont regret it at all. Plan on going even bigger once I can afford it.

The age old problem $$.

[quattro16]

Well For A Daily Driver I Couldn't Do It Here On Long Island. I Don't Know How Some People Do. I Think I Would Go For A Stage 3 S4 Next Time Round.

[Nebone]

Well For A Daily Driver I Couldn't Do It Here On Long Island. I Don't Know How Some People Do. I Think I Would Go For A Stage 3 S4 Next Time Round.

Why does location matter? Last time I was on Long Island there was a Camaro in traffic next to me that could barely keep its slicks from spinning out. I've seen many fast cars there.

[dougyfresh]

I love mine. Its 100% reliable. I've got over 5000miles on the new engine and set-up and it works fine. I had 5,000miles on the old set-up and that worked fine. I rev it up to high RPMs every time I drive it.

My Avant is built to drive and I use it to travel everywhere. Shit, I installed my Cat Cams and without any testing I just hopped in the car and drove 8hours up to Maine and back (with logging of course). No problems.

If I were do it again I'd build the head to rev it up to 8500-9000 and I'd also put a 35R on the motor.

[Don Supreme]

I love mine. Its 100% reliable. I've got over 5000miles on the new engine and set-up and it works fine. I had 5,000miles on the old set-up and that worked fine. I rev it up to high RPMs every time I drive it.

My Avant is built to drive and I use it to travel everywhere. Shit, I installed my Cat Cams and without any testing I just hopped in the car and drove 8hours up to Maine and back (with logging of course). No problems.

If I were do it again I'd build the head to rev it up to 8500-9000 and I'd also put a 35R on the motor.

REALLY DOUG? You seemed quite certain the 2871 was as big as you wanted to go.

[pipe7284]

HELL YEAH!!!!!

[SurferForever]

I would totally do it again, although i would have gone about it completely different from the beginning . . . Bigger, Stronger, FASTER ! ! !

[1fstavant]

would do it again but at the same time wouldnt, for the money a bike woulda been a much better choice, condsidering i spent so much money just to have to buy another car now for the winter...
however, if i had to i would do it again, but bigger....everytime i get on it, bike idea seems silly

[Militant-Grunt]

Well For A Daily Driver I Couldn't Do It Here On Long Island. I Don't Know How Some People Do. I Think I Would Go For A Stage 3 S4 Next Time Round.

I go to school in long island, I wont mind the extra MPG getting to and from there.

[317ssayzarc]

id do it again for sure, but if i were to do it over id do many many many things different... too many things to list here but heres a couple... bought an 06A block'd car, built the motor and broke it in on stock turbo/tune, standalone from the get go, bought a shittier car to start with, straight to a 35r, ect

[1fstavant]

+1 for the shittier car...spetn way too much on my car from the goo

[Nebone]

If I had it my way, I'd build the motor and test/break it in outside the car.

[Kyle H]

Hahaha aww man, I actually made this thread to try and convince myself that a BAT would be too much trouble and not worth it, you sure killed that thought.

It looks like anything below 3071r I'd want to do it over again.... Those student loans sure are tempting right about now!

[Poopie]

Hahaha aww man, I actually made this thread to try and convince myself that a BAT would be too much trouble and not worth it, you sure killed that thought.

It looks like anything below 3071r I'd want to do it over again.... Those student loans sure are tempting right about now!

if you have to use a loan to build a car you are in trouble. If you can't afford it, stay away. No use digging a hole just for a car that will lose its value pretty damn quick.

[Don Supreme]

^ Probably...

The other issue here is Audi guys are stuck on bigger turbos. They don't realize the diminishing returns due to the engine itself not being optimized to flow the air from larger turbos.

I will use myself as an example...

Gt35r on a stock small port head... Yes the car was fast, but I could always tell the turbo was choked up, not able to spin freely and flow air.

I knew from the get go that the small port head was not going to do the trick, but it was a money issue and now I am in the process of addressing that.

If 2871r & 3071r guys spent another $3gs on a bad ass intake manifold, cams, and head work (and tune), then I think they would put out at least another 50 - 60 more WHP than they typically do.

[Kyle H]

if you have to use a loan to build a car you are in trouble. If you can't afford it, stay away. No use digging a hole just for a car that will lose its value pretty damn quick.

yeah that's what my logical side is telling me. At least this lack of money is forcing me to do my research before I build/buy.

This whole full-time student part time working thing is a real bummer!

[Don Supreme]

If you did it right the first time:

Budget:
5k for high 12s
7k-10K for low 12s - low 11s.

[Kyle H]

If you did it right the first time:

Budget:
5k for high 12s
7k-10K for low 12s - low 11s.

Here's the budget i just put together in excel...

gt3071....................1100
spa manifold.............460
wastegate...............230
630cc injectors.........260
tune.....................~800
3" catback...............750
hfc.........................250
fmic........................900
scat rods.................400
walbro 255...............100
a/f gauge................ 200
ebc.........................100
misc.......................~600

for a grand total of ~6200 + tax and shipping.

the way I see it, the supporting mods are pretty much the same for everything from a 28rs to a 3076. The 3071 seems like my favorite because it can make some pretty good power with just rods, and down the road I can go 2L, build the head, get a high flow intake mani, go with meth injection and I wont completely max out the turbo like I would with a 28rs or 2871 (or maybe I would).

[Poopie]

don't forget clutch.

MISC tools and bits of hardware will add upward to $500 really fast as well.

[Kyle H]

don't forget clutch.

MISC tools and bits of hardware will add upward to $500 really fast as well.

yeah I have a sb stg 3 right now which I figured would hold up to the power as long as I didn't launch it (I don't like drag racing anyways).

I'll add an extra ~600 for misc junk in there.

[Poopie]

you'll definitely want to step up to at least a stage 4 clutch while you have the motor out.

you'll also need to do the "well...since i have this part off i might as well upgrade" estimation too.

[Nebone]

Finances 101

First $5k takes of 3 seconds off your 1/4 time.

Second $5k takes off an additional 1 second off your 1/4 time.

MOAR POWA addiction is Priceless (as in price is unknown and better not sum it all up or you'll throw up a lil)

[Kyle H]

you'll definitely want to step up to at least a stage 4 clutch while you have the motor out.

you'll also need to do the "well...since i have this part off i might as well upgrade" estimation too.

come on poopie, you're crushing my dreams here!

(jk, it's nice to get a realistic view on what a BAT build really takes)

Finances 101

First $5k takes of 3 seconds off your 1/4 time.

Second $5k takes off an additional 1 second off your 1/4 time.

MOAR POWA addiction is Priceless (as in price is unknown and better not sum it all up or you'll throw up a lil)

lol!

[Russell2686]

Id do it again for sure, i'm happy with my gt28rs and have 0 reliability issues. But i also didn't piece it together and i don't have an off the shelf tune so that helps also.

Second on what poopie said, if you don't have the money to do it then id hold off until you can handle it.
The only reason i wouldn't do it again is i hate spending money...until i get in it and go WOT of course.

[Don Supreme]

Here's the budget i just put together in excel...

gt3071....................1100
spa manifold.............460
wastegate...............230
630cc injectors.........260
tune.....................~800
3" catback...............750
hfc.........................250
fmic........................900
scat rods.................400
walbro 255...............100
a/f gauge................ 200
ebc.........................100
misc.......................~600

for a grand total of ~6200 + tax and shipping.

the way I see it, the supporting mods are pretty much the same for everything from a 28rs to a 3076. The 3071 seems like my favorite because it can make some pretty good power with just rods, and down the road I can go 2L, build the head, get a high flow intake mani, go with meth injection and I wont completely max out the turbo like I would with a 28rs or 2871 (or maybe I would).

You need a good clutch / flywheel setup
Price EBC and AFR is way off especially EBC

Also you probably need to make that misc closer to $1500.

I don't see any internal engine parts besides rods. What about:
Rod bearings
Main bearings
new piston rings
main bolts
..............
I see no tools and no labor charges. If you are doing it yourself then you need some decent tools.

P.S. The best time I know of with a 3071 on a b5 is 11.9 @ 115 (IIRC) (probably on c16)

[Poopie]

BAT is worth every penny. I drive my car everyday and love it. I don't really have hesitation to spend money...but its not worth going into debt. Save up those pennies. One day you'll get there. Another option is to pick up used pieces as you go along and collect what you need as you have the money.

[Don Supreme]

Try to have every part or the money to spare before you touch the car... I have been dropping money like water since I started my rebuild....... no wonder these projects take 6+ months.

[Nebone]

Plus now and later is good timing to do this since it's all layed out for you and parts are available just a click away.

[Kyle H]

Thanks for all of your input and advice guys.

updated list
gt3071....................1100
spa manifold.............460
wastegate...............230
630cc injectors.........260
tune.....................~800
3" catback...............750
hfc.........................250
fmic........................900
scat rods.................400
Calico Rod Bearings....80
main bearings............60
piston rings..............150
main bolts................20
walbro 255...............100
innovative xd-16...... 400
greddy profec-b........400
misc....................~1500
sb stg 4 clutch.........600

total of ~7100

This is sounding about right. I have a lot of tools (enough to take apart the front end/suspension/brakes/transmission) but I think there are some special ones that I'd need to take apart the head.

What is the price of the 630cc tune from ctapp? What kind of MAF does that file require (and how much do they run)?.