Looks pretty good inside, I believe it has fd corner seals. Its dirty, but the housings/rotors are in good shape. But the front bearing has copper showing on the barbad(sp?) soft inner liner... So I think im going to completely rebuilt/oil modify and BP the motor.. https://www.nopistons.com/forums/pub...IR#>/bigok.gif

hmmm bridge port,,,,,yum

Bridge would be sweet. BigTurbo, how is your rebuild coming along?

umm well, since i finally learned the basics of parts and how they work...(no help from the rebuilding section here)COUGH COUGH... hehe. i'm really close. i recently painted the irons and and shining stuff up to get ready to put things back in. i think i'll post some pics soon... and i think peng is about to roll over for a braut or two & couple brewski's and to supervise

sounds like fun and good experience, I need to try that.. all I have is that Bruce video from Atkins but it looks pretty basic

i got a 13b that I want to rebuild but I want to port and stuff LOL.

I tried to do my TB(Spare) and got more material off my fingers than the TB so im scared to do my own port. I don't think grinding stones are the tool for the job huh? It scracthed it up pertty good but as we speak im sanding it by hand.



I hope your rebuild goes good post details of THE LEARNING experiencs. so us less fortunate Rotor heads have a heads up!

haha i've like memorized that video. i know the shop manual is a very good text reference too.

Yea we need to buy one! This is going to be one fun weekend, I will post pixs of the rebuild with us and peng....

yeah, I actually printed the 800 page FSM out and put it in binders at work.. right before I got layed off last week https://www.nopistons.com/forums/pub...O_DIR#>/11.gif

god i need to do that too, but i dunno if i have the money to drop for those ******* ink cartridges

That's why he did it at work https://www.nopistons.com/forums/pub...IR#>/bigok.gif

haha well... i kinda figured that

brapness

I'm lost...revvin, r u building a bridgeported NA motor for another car, or is that Bigturbos???



u guys building one engine, or are each of you doing ur own thing...??

they're both doing all sorts of stuff :P

haha, I have an n/a motor out of my gxl I am attempting to BP, but first I need to peng to get over here So i can make sure everything is within spec https://www.nopistons.com/forums/pub...DIR#>/wink.png

Please say its not a S5.....they REALLY dislike bp's

S4 https://www.nopistons.com/forums/pub...#>/biggrin.png

Youre much luckier than me... But thats the first and last time Ill say S4's are better than S5's...

first and last time? Have you had to replace the ball joints on the front A arms yet? https://www.nopistons.com/forums/pub...#>/biggrin.png



what is the reason for saying S5's don't like BP?

Because my car runs like **** when I open my 6 ports, which happen to have a small bridge. Im sellign this motor to someone with a S4 as soon as I finish my SP motor. That should be 2-3 weeks at this rate though.

Because my car runs like **** when I open my 6 ports, which happen to have a small bridge. Im sellign this motor to someone with a S4 as soon as I finish my SP motor. That should be 2-3 weeks at this rate though. [/quote]

hrm, thats just one specific case, i'm not sure how conclusive that is as far as S5's hating BP's in general.



Are you wiring them open or just opening them at high rpm? safc or anything?

Because my car runs like **** when I open my 6 ports, which happen to have a small bridge. Im sellign this motor to someone with a S4 as soon as I finish my SP motor. That should be 2-3 weeks at this rate though. [/quote]

hrm, thats just one specific case, i'm not sure how conclusive that is as far as S5's hating BP's in general.



Are you wiring them open or just opening them at high rpm? safc or anything? [/quote]

The problem is my afm gets maxed out before it gets into the powerband. S5's seem to have a problem with that. Ive seen small SP motors with bolt ons hitting 95% of the max reading on the afm. A s-afc or wont do any good because the computer isnt mapped for the airflow that a BP uses.



I have my ports wired closed now, running on 4 ports only...

Because my car runs like **** when I open my 6 ports, which happen to have a small bridge. Im sellign this motor to someone with a S4 as soon as I finish my SP motor. That should be 2-3 weeks at this rate though. [/quote]

hrm, thats just one specific case, i'm not sure how conclusive that is as far as S5's hating BP's in general.



Are you wiring them open or just opening them at high rpm? safc or anything? [/quote]

The problem is my afm gets maxed out before it gets into the powerband. S5's seem to have a problem with that. Ive seen small SP motors with bolt ons hitting 95% of the max reading on the afm. A s-afc or wont do any good because the computer isnt mapped for the airflow that a BP uses.



I have my ports wired closed now, running on 4 ports only... [/quote]

considered afm modifications if it truely is getting maxed out?

Because my car runs like **** when I open my 6 ports, which happen to have a small bridge. Im sellign this motor to someone with a S4 as soon as I finish my SP motor. That should be 2-3 weeks at this rate though. [/quote]

hrm, thats just one specific case, i'm not sure how conclusive that is as far as S5's hating BP's in general.



Are you wiring them open or just opening them at high rpm? safc or anything? [/quote]

The problem is my afm gets maxed out before it gets into the powerband. S5's seem to have a problem with that. Ive seen small SP motors with bolt ons hitting 95% of the max reading on the afm. A s-afc or wont do any good because the computer isnt mapped for the airflow that a BP uses.



I have my ports wired closed now, running on 4 ports only... [/quote]

considered afm modifications if it truely is getting maxed out? [/quote]

You cant modify S5 afm's

well that is a problem with S5 ECU/AFM not the engine time to go haltech https://www.nopistons.com/forums/pub...#>/biggrin.png

MS, what do you think about using that BPed motor with a ECO/Manifold set-up like Pengaru? IDA might be better but the DCOE would allow you to have good low RPM since it still has port actuarotrs.

Sorry for digging this up.

I dont think it will work very well. The runner will be a problem. You have 2 ports, and DRASTICALLY different port timings sharing the same runner. The seperate pulses are going to interfere with each other in the runner, and reduce power, and I expect thats one of the main reasons my car ran like **** with the aux ports open.



I think to pull it off, you will need 6 seperate runners, and no less than 3 throttle bodies.



It would be simpler and make more power to take a 4 port, half bridge it, and set it up so the secondary ports open after a certain rpm.

why dont you put an s4 afm into it? its compatible



mike

First, I just dont care that much. Motors sold anyways, just waiting for the guy to collect the money. And my new motor is almost ready to go together. Second, I think the problem with the runners is more serious than the AFM.

First, I just dont care that much. Motors sold anyways, just waiting for the guy to collect the money. And my new motor is almost ready to go together. Second, I think the problem with the runners is more serious than the AFM. [/quote]

yah, thats true, but at least you could have it not maxxing out so early*. the its car (stock s5 motor stock ports) maxxes out the afm around 7k



mike



*i havent tested one, but you can always tighten the spring, or drill a hole in the flapper



mike

The TII's have a stiffer spring, but a n/a wont run right with a TII afm(S5's). I have a hunch that it might be like the fords, where the afm is calibrated for the injectors, instead of the ecu. But I dont have 4 S5 550's to test it out yet.

yah i think the fuel map is the same, they just used smaller injectors on the na's



mike

I tried the aux ports again today. First, they were stuck, and I couldnt get them open all the way. But this time I set the VDI to the low rpm setting, and I now have colder plugs(i melted a set of stock ones in 5K miles to the point of the car flooding constantly).



Little less low end, started to get into the powerband around 4500, and by 5500, the afm was maxed, and the lean mixtures caused power to start falling off. The power delivery was not regular. Sometimes I would have more power than other times. When it was doign best, it was noticably more powerful than with the aux ports closed. On the highway, in 4th gear is where it really shined. Went from 80 to 120 very easily. I havent ever felt my car pull that hard in 4th gear.



But I still think the SP motor im building will make more power across the board.