i think i have decided to save$$$ for a turbo set up instead of swapping in a lt1 or a 350 to my lo3 because i hear the v6 is lighter and has better handling

i have read installing a turbo a few times just wanted to know whats the most hp i could get out of the 2.8 without destroying anything and also how long will my t5 tranny last

also very willing to install/fab turbo myself just need to know how hard is it to weld (good that is)

 

search for project89, or daves12secv6. same guy. he did a turbo 3.1 in a camaro. he's also helping pilsbury with a 3.4 turbo in his thirdgen. if you want i can send you some links and youtube videos. on youtube, i think he goes by streetlethal.

 

geussin u like ICP mistah juggalo
but ya i heard of the 3.1turbo i was just wondering if my 2.8 will put out the same amount of power

 

Dont even bother with the 2.8, Start with a 3.4. More cubic inches from the start and its basic the same engine.

 

Asked this same question about a month ago. Pretty much the main answer to the question is dependent on a couple things you never stated. How much RWHP you looking for, and what are the plans for this car(street, strip, both)?

 

ICP's the best.hands down..been down since day one
back to the topic at hand...anything is possible...but why dump the money into a 2.8?

 

because im just trying to beat dos awd eclipse and awd talons at their own game
just want about 400 rwhp
and the car will be street definately not daily driver but par say driving maybe 50 miles or so a week
and couldnt i just rebuild the engine every ever how many miles to make it safe
how hard is it to swap for the 3.4 is it as hard as an lt1 swap?

 

being in cali still have to worry about smog police...

 

how is it that i would be caught by them?
like what could they do and how could they catch me do you have to notify dmv of turbo?

 

lol i am a closet juggalo, if you love them or hate them they are still entertaining

starting with a 2.8 to get 400hp is gonna be a little tough but it is possible, just not sure how long it will last.

if you have to pass emissions im not sure if that will even be possible, you guys have to pass a test every year dont you? if so they will know. you have to take off most of your emissions stuff to put the turbo on.

 

the 3.4 swap is WAY easier than and lt1, there are a couple threads on here about it do a search and youll find them. you can pretty much drop a 3.4 right in, change the 3.4 brackets to the 2.8 brackets, put the top of your motor on the 3.4 and away you go(basically) and you can pass emissions with a 3.4 becuase it will look identical to your orginal motor

 

ya but here in cali we gots the homie's cousins friends uncle to pass you in smog for 100 bucks

 

if you get my drift
and how tough would it be to get it to 350 -400 rwhp
also isnt their gauges that would tell me how much stress the engine is undergoing so i wont blow it to pieces?

 

i think on mild boost he made 278whp, and almost 400flbs on the dyno with some timing problems. anyways, if you want to get around smog, try a remote mounts system. since its after the cat, its still emissions legal. 400 horse is alot to ask for out of the 2.8. you would roughly need 20+ pounds of boost, and you would need a stronger tranny. it'll cost about 700-900 to build your own turbo system if you can weld your own headers. project89 and pilsbury have had good luck with ebay turbos. its a good starting point to get a universal kit, and upgrade as you get more money.

 

haha well then thats your call on doing it or not, here in indiana we dont have to worry about anything.

if you really want a turbo v6 its not cheap so keep that in mind, start with a 3.4 though that alone will give you 40hp more and like 60 tq i belive, i cant ever remember the numbers

 

pillsbry10, how easy was it to install the megasquirt? does it eliminate the factory computer or does it just piggyback the stock computer?

 

i have been reading the swap boogie u speak of
will 400 rwhp be alot easier out of a 3.4 then a 2.8 or am i better off achieving that goal by trying to put a turbo on my 89 rs convertible with 5.0 and TBI

 

it is a lot to ask for on a 2.8 but you could get some decent numbers, if your running a 5speed expect to get a clutch as mine doesnt like boost at all. i had good luck with my ebay kit so far, im sure ill upgrade a good portion of it eventually. however it does run and runs strong so far. with a new clutch ill put down the numbers you want, but on a stock 2.8 i dunno if 400hp at the wheels is gonna happen

 

say what the 3.4 HAS JUST AS MUCH HP AS MY 89 RS V8-5.0-TBI (LO3)
MAN TBI REALLY chokes **** eh?

 

mine elminated the factory computer all together, it was kind of a pain but not any harder than anything else with the project.

it will be easier out of a 3.4, as far as on the 5.0 im not really sure, they may make kits for you to turbo that where as a v6 is completly custom. i was running with 5.0tbi's with my 3.1 that i had so they really arent that diffrent

 

they have a bit more tq throughout the powerband but i could run with a tbi all day with my old 3.1v6 with bolt ons. TBIs really do suck ive owned one and i have a dyno sheet on both motors they are real similar. search my posts i think youll find a thread on it

 

do you know if there is anything different in turbocharging a tbi engine?
\and how hard is the 3.4 swap i have never done any mechanical work in my life i am willing to learn though will i be able to pull it out and put it right back in like the harness will plug in and it mounts right in
what else is included in swapping the 3.4 any other pieces i need to buy

 

it says the 3.1 only had 140 hp the 2.8 has 135 does the 3.4 change significantly to 175 hp

 

no clue on the TBI, i could write all that out but it is covered in the 3.4 swap boogie and another thread that i think is in the tech articles section of the boards follow those and my swap thread and youll have all the info you need

4th gen 3.4 is rated for 160hp (4500rpm) & 200tq (3500rpm)

 

400 out of iron heads??? You need ALOT of pressure and some serious changes to the induction to get there. Look into 3x00 stuff. I'm pushing 15psi through a mostly stock 2.8 and it's way below 300hp, let alone 400. I might get above 300 with a 200 shot of n20 though lol.

 

im not even sure ill get near 400 to the wheels with my setup, ill have to push the turbo pretty hard and everything else on the car isnt well rated for that much hp or tq lol

if i can get a clutch and get it over to the dyno itd be nice to see what it makes so we could for sure say what it would take to get those numbers

 

.

lol 400 threw iron heads is a cake walk
remember when my car was dynoed those numbers were 270/370 rwhp & tq @ 9 psi coupled with 25% drivetrian loss and the issue of only 8-10* total ignition timingb so lets break this down

at the flywheel were talking 338 hp and 463 ftlbs. AND THAT WAS WITH ISSUES

and do i have to point out how down on power the dyno results are just cause of the timing issue.

let me ask u this how much power would u loose under boost i u backed ur timing maps down to a total of 8-10* total timming (i,e 8-10* btdc)

and btw ive posted pics of the heads used for the dyno pull they are nothing more then hand ported heads, my cnc'ed and heavily machined heads were scrapped due to them cracking from getting to close to the water jacket so those are results anyone can get with a lil bit of work

pilsburys car should well exced what my car did as the setup on his car is much more optimal compared to the jy intercooler and other misc oem type parts i used

 

(you get my email?)

we shall see on the 400hp thing...ill be close

 

yeah i got it im working on cleaning up the fuel map a tiny lil bit should have u the iles back in about 2 hours

 

You have ported heads, custom induction & a different cam for that motor. There's no way you're getting close to 400hp on a stock 2.8 without serious induction changes like I said. I'm having spark problems of my own, I'm limited to the right end of the table under boost for reasons I still can't tell. Like it's in hot restart mode, except I've removed that segment of code. Strange. Anyway it has gobs of torq but I doubt it's over 250hp. And that's with a 35 shot of n20 for intercooling.

 

mine is done up about as much as you can do with a iron head 3.4, it would be interesting to see what yours is making the way it sits now. im pretty surprised that it hasnt blown up yet. for the money that its cost me to get what i have(i hate to say it) i couldve got way more out of an ls1, but i wanted to do something diffrent. however i think my next maro is gonna be an lsx swap. just depends on what you really want, either way 400hp isnt cheap

 

LOL, I only have ~$150 into the turbo related stuff including rebuilding the turbo with an ebay knockoff kit. I really expected this thing to give out a long time ago.

 

*sigh*....

I'm quite sure there are some very inflated numbers here.

Any Dyno can be changed with a few clicks of some buttons to change the output results.

There are plenty of turbocharged 3400 guys and they are consistantly dynoing around 300 HP. Only one person thus far "has been able" to dyno anything around that with an iron headed engine.

I have seen no proof of any of these claims by this so called member, or aything reliable proof anyway.

People put way too much stock in what numbers a dyno will spit out.

After going with a friend of mine to have his car dynoed, and the operator of the dyno, who was also part owner of the shop and an overall nice guy, showed me how he could change th numbers spit out by over 100HP, depending on what calculation "correction" he chose in the drop down menu. This was a 1000+ HP car. First time was a single carb set-up that produced 1050 HP IIRC (Been a few years), the next combo that I was there for was his a twin carb set-up, that has produced over 1200 crank HP, naturally aspirated. Where I'm going with this is that his numbers alone could be changed by nearly 10% just depending on the calculation "correction" used. It could have been skewed even farther, by changing some other settings. Due to what I've seen over the years, and repeatable, and non-repeatable results posted on the intarweebz, I believe this is what is happening here. It may not be malicious, it may be the dyno operator screwing with the numbers, but things don't add up.

This is why I no longer really care what dyno numbers are, they can be fudged way too easily. E.T.s and trap speeds tell the story better. But only provable time slips submitted please....

Who's goin' Chicken' Huntin'?

Back to the topic at hand.

Yes the 2.8 is worth turbocharging, IMO any engine is worth turbocharging.

What you really have to ask yourself is what your goals are, and be honest with yourself, do say you want "Max potential, OMGz0rz, WTFBBQ, insane peak horse power numbers", when you really want to increase the useable torque band and increase it evenly, for a more enjoyable drive. Actual use of the car will be a great director of what your real goals are.

I've seen way too many people follow some half-*** suggestions that are posted on some website saying they need forged internals, a 1000 GPH fuel pump, 142 lbs/hr injectors, slicks, wild porting, etc, when all they really need is to assemble a nice turbo set-up on thier existing engine with conservative boost number (don't get me started on how little the numbers on the boost gauge really means, especially when people try to compare two completly different engines.

There's also no need to go to a MegaSquirt, when the original ECM, or different OEM Delco ECM, depending on what you have now, will do everything the MS will and more, more reliably, and for those that need to pass emmisions, do retaining that factor.

 

then go talk to ben (60*v6) he setup the dyno he even picked the place and set everything up. he got the results and all the info from the dyno operator himself

i had nothing to do with it except bring the car to the place and let them put the car on the rollers, only information they asked me for was car wieght which i belive was 3460 at the time

 

we's going chicken huntin lol

you are right, ive seen no real proof of any numbers along that line aside from the dyno run that project89 posted yet there is video of him running 13s.

however when i dyno mine they will be "REAL" numbers not fudged in any way and if i can get to a 1/4 mile track i will post timeslips. im not out to bullcrap anyone. i built this setup to get as much as possible out of it and i think i have done so. my goal was 300hp and 400+ tq, did i get it, i dont know yet as the clutch wont hold.

no matter what i get the car is still WAAAAYYY more fun to drive than it ever has been and im still trying to get things dialed in, ill be happy no matter what it runs and thats all that really matters. i started with 133hp and 178tq, anything is an improvment lol.

hey now im using 150lb injectors at .05% duty cycle whats your point

id turbo any car really, i love them. mild mannered when you want them to be...a beast at will. its nice

 

http://www.streetfire.net/video/kraz...409_641533.htm

from the dyno place

 

do you think i am better off going with a 3.4 in the long run but if a 2.8 turbo doesent sound like a bad idea the i might just go for it just what kind of numbers should i be expecting like rwhp

 

if your gonna build something like mine then yes a 3.4 is the way to go

my advice to you...is read, read a lot...spend hours on here reading about the diffrent options and what you can expect then decide v6 turbo, or v8 swap, its your call but either way you will have a fun to drive car. dont build it just to beat other cars or prove a point build it for something fun to enjoy

 

just went into junkyard for a lower intake manifold does anybody know if the steel hose coming from the where thermostat sets into its a steel pole coming out of the lower manifold and just needed to know if this part is removable its broken and i need to know if i can switch out the old hose from the old manifold or get a whole nother manifold

 

pic?

 

 

Doesn't look broken to me... That's the old one that screws onto the nipple protruding from the manifold. The newer ones stink as they are held together with an easily broken plastic clip. Just be careful getting the threaded part out of the manifold. It's the TB/heater core coolant adaptor pipe. If you find another manifold, keep the one it has with it if yours is broken further down the line. I saw your thermostat housing is in a bit of a tight spot with a broken bolt... Thread sealer is your friend (not thread locker) with threaded coolant parts. And possibly some anti-sieze compound.

 

Your Horsepower computed from your vehicle weight of 3450 pounds and MPH of 104 is 318.96.
and
Your HP is 310.37 computed from your vehicle weight of 3450 pounds and ET of 13.0 seconds.


from right before the dyno from this page

http://www.wallaceracing.com/et-hp-mph.php

and just about any calc will come up with the same thing

 

what does that mean? IWILL HAVE THAT much hp after a turbo set-up

 

No, that's just more bickering. You can probably expect around 220hp boosting the stock motor to something like 6-8psi. But the torq improvement is what you will feel and what makes for a fun daily driver.

 

seems kinda like a waste of 2k dollars to get 220hp but how much more fun will it be to drive then a 350 if i swap in a 3.4 will my hp be more of something like 260?

 

2K?!? I only put $150 into my setup. You'll definately get more power out of a 3.4, but like I said the difference in torq is what you'll notice. You can make comparable horsepower & torq to a stock TPI (which IMO, isn't great anyway). You can do this way cheaper if you can do it yourself. Look for a turbodiesel mercedes in the junkyard and get a cheap rebuild kit off ebay.

 

ya thats what im saying the stock tpi only has 220 hp (i agree not that great)
150 dolla im so down
how hard would it be to learn the welding? and what kind of welding MIG OR TIG

 

Mig is pretty easy. You can get a welder pretty cheap on craigslist or from harbor freight. They sell tons of super cheap chinese knockoff tools and they usually won't hassle you over exchanging broken stuff (which is frequent). If you need ideas you can scroll through this thread I started for my motor.