turbo question

I am new to this forum and just got the internet so bear with me.

I have a 2000 integra GSR with the following performance modifications:

JG edelbrock intake manifold
JG edelbrock throttle body
aem cam gears
unorthodox underdrive pulleys
aem fuel rail and FPR
MSD digital sci ignition
nology wires
DC 421 headers
greddy evo exhaust
dc short throw shifter

I am next planning on getting a Hondata s200 ECU with RC injectors then I plan on getting a Drag 3 turbo kit but I don't know if my car for one, Will handle the turbo kit without blowing my stock engine, and for two, What size of injectors I should get for this application.
I know there are OG's in here that hear this every day and can answer this.:)

Originally posted by 00tegGsr
I am new to this forum and just got the internet so bear with me.

I have a 2000 integra GSR with the following performance modifications:

JG edelbrock intake manifold
JG edelbrock throttle body
aem cam gears
unorthodox underdrive pulleys
aem fuel rail and FPR
MSD digital sci ignition
nology wires
DC 421 headers
greddy evo exhaust
dc short throw shifter

I am next planning on getting a Hondata s200 ECU with RC injectors then I plan on getting a Drag 3 turbo kit but I don't know if my car for one, Will handle the turbo kit without blowing my stock engine, and for two, What size of injectors I should get for this application.
I know there are OG's in here that hear this every day and can answer this.:)

8 PSI of intercooled boost is the max for a GSR. Not sure if the 310 CC injectors will be big enough, you should probably get like 350-400 CC with a pressure regulator.

With the GSR motor, I would go with 550cc injectors and a VAFC to control them. 550cc's are too big for a VAFC, but should be fine for a bigger motor.

I wouldn't run more than about 6-8 PSI of boost on the stock internals. You stock fuel system should be able to deliver enough fuel for that much boost.

ok.. first thing first... if you're getting the drag gen III kit you don't need to get the hondata ecu right now...it comes with a vortech fmu and if you run rc 310 injectors and get the missing link they offer in most of the kits your ecu should be able to handle it without tweaking out. The kit either offers the turbonetics external wastegate or the tial wastegate which from drag is set at 7 psi so regardless of how hard and long you slam on the gas you'll never run more the 6 pounds of boost cause once you near the 7 mark the wastegate will open off and bleed off the excess boost so you don't blow a piston threw the roof or a rod out the bottom. Once you build up your block and head then you'll have a need for the hondata, but running on stock internals you don't wanna go any higher level of boost then what drag sets their wastegates at, unless that is you have the serious amounts of dough to rebuild or replace the motor everytime it blows.

I was told that why waste your money on a piggyback fuel/vtec controller when a Hondata ECU will do all of this and more for about $200 dollars extra. I have been told that the VAFC runs really well with a drag 3 kit but I don't understand how to determine what injector size to get. Should I get 550cc or is this overkill and bad for my engine? Also how much horsepower can i expect from running 8 psi off a stock engine with my mods?:confused:

Originally posted by 00tegGsr
I was told that why waste your money on a piggyback fuel/vtec controller when a Hondata ECU will do all of this and more for about $200 dollars extra. I have been told that the VAFC runs really well with a drag 3 kit but I don't understand how to determine what injector size to get. Should I get 550cc or is this overkill and bad for my engine? Also how much horsepower can i expect from running 8 psi off a stock engine with my mods?:confused:


well yeah a custom burned ecu will do everything but what if you want to get more boost or add nitrous you have to send it back to be reburned. a piggyback or a stand alone you can program yourself.

and yeah very high flow injectors will mess up your idle.

btw seiing what you already have i say go all the way and reinforce the bottom end and then you can do some serious boost.

Originally posted by 00tegGsr
I was told that why waste your money on a piggyback fuel/vtec controller when a Hondata ECU will do all of this and more for about $200 dollars extra. I have been told that the VAFC runs really well with a drag 3 kit but I don't understand how to determine what injector size to get. Should I get 550cc or is this overkill and bad for my engine? Also how much horsepower can i expect from running 8 psi off a stock engine with my mods?:confused:

Actually the hondata setup you would need will run ya quite a bit... the s200 unit will run ya around 250 dollars and then an additional 200 dollars so it has boost capability and then anything else on top of that will run ya extra... then you'll need to get the P28 ecu with an OBD2 connector which from hondata directly runs 450 dollars I believe... then on top of that you'll also want to get a wide band O2 sensor which will very in price depending on if you go with a DIY (do it yourself) or an FJO which I think run around 700 bucks I believe, kinda iffy on that price... whether you want additional goodies like datalogging or ROM editor is up to you, but it means ore money outta your wallet. Hondata is definately a good setup and reliable but it's not as inexpensive as some may think for the later gen tegs (cause of the ecu) especially if you're going FI. As far as injector size goes all you need is 310cc injectors. For now don't worry about your ecu, you should everything in the kit you need for it run properly. On 8lbs you'll prolly push low to mid 200 whp.

Thanks I guess your right. I know will probably get a APEXI vafc to piggyback and be able to reprogram when I upgrade more stuff. I hope to get way more than 200whp out of the drag kit with the mods I already have and when I get injectors. On the Drag site they claim on a dynojet a stock 2000 GSR motor will produce 275 whp with running 7-8 lbs of boost. I do not know if this website is trustworthy though. A mechanic told me that when you run turbo on each other modification you have it increases horsepower by 2 or 3. Is this true?

Originally posted by 00tegGsr
A mechanic told me that when you run turbo on each other modification you have it increases horsepower by 2 or 3. Is this true?

Depends on the modification that is made. There's no way to say what he did with any accuracy.

And you will only see about 250 WHP with just the turbo kit running 8 PSI. They must assume a lot of other mods, like 3" straightpipe exhaust will probably get you about 15 HP compared to the stock exhaust. On turbo apps you want as free-flowing as possible, no back pressure is needed whatsover after the turbo.

Originally posted by 00tegGsr
Thanks I guess your right. I know will probably get a APEXI vafc to piggyback and be able to reprogram when I upgrade more stuff. I hope to get way more than 200whp out of the drag kit with the mods I already have and when I get injectors. On the Drag site they claim on a dynojet a stock 2000 GSR motor will produce 275 whp with running 7-8 lbs of boost. I do not know if this website is trustworthy though. A mechanic told me that when you run turbo on each other modification you have it increases horsepower by 2 or 3. Is this true?

The dyno charts from DRAG are actually on a stock gsr, unless I'm mistaken... however, the boost level isn't at 8 lbs, more likely around 11 or so.

Originally posted by casperGSR


The dyno charts from DRAG are actually on a stock gsr, unless I'm mistaken... however, the boost level isn't at 8 lbs, more likely around 11 or so.

I knew it, you can't get 275 WHP on a stock engine with only 8 PSI. Something sounded fishy, so my 250 guess was pretty close.

Originally posted by 00tegGsr
I am new to this forum and just got the internet so bear with me.

I have a 2000 integra GSR with the following performance modifications:

JG edelbrock intake manifold
JG edelbrock throttle body
aem cam gears
unorthodox underdrive pulleys
aem fuel rail and FPR
MSD digital sci ignition
nology wires
DC 421 headers
greddy evo exhaust
dc short throw shifter

I am next planning on getting a Hondata s200 ECU with RC injectors then I plan on getting a Drag 3 turbo kit but I don't know if my car for one, Will handle the turbo kit without blowing my stock engine, and for two, What size of injectors I should get for this application.
I know there are OG's in here that hear this every day and can answer this.:)


Your car will handle the boost fine as long as your motor is in good condition. If you don't plan on building the block, i would at least go with a inline pro headgasket to lower the compression some. Regardless of what somenone else said about not needing the hondata for 8psi, I would get hondata if i only planned on running 2psi. The afc hack and fmu setups are nice, but you can't beat hondata. The hondata S200 is a nice choice. Depending on what you really want to do in the long haul, you might want to just get some 880cc injectors just incase you plan on building your motor later on and running high boost. I have 880's and the hondata idles them fine. You could probably run upwards of 11psi on pump gas and close to 18psi on the race fuel if you get the headgasket.

the drag turbo kit is perfectly capable of putting 255 hp to the wheels on 8 psi...Nothing funny about it. The drag kit is also NON street legal too. I've seen many LS engine drag equiped cars that get 255 HP and 216 ft-lbs to the wheels and is perfectly safe. All you need is 310 cc injectors because that is all the stock ECU can manage to handle. The drag kit is complete and you don't need anything else except a stage 1 clutch. Just don't go playing with the wastegate to get more boost because your stock B series engine won't like that!!!!

Originally posted by super_man_3179
Just don't go playing with the wastegate to get more boost because your stock B series engine won't like that!!!!

Any stock B series can handle 12 PSI, after that the stock pistons will melt. Up to 14 PSI for the stock sleeves and also stock rods. It's just the matter of compression that stops you from boosting a B18C1 more that 8 PSI on pump gas(93 octane).

I think the DRAG kits suck ass. The Turbonetics T3 isn't all that it's 'claimed" to be, the normal kits come with a suck-ass Deltagate wastegate, the downpipe has to be welded up (bolt-on my ass), and it doesn't spool until really late. I dont think it's worth the money, but it is one of the best looking kits around. If you own a Civic, however, you'll have to notch the support on the underside of the hood so the wastegate won't hit it. That's not a "bolt-on" kit if you ask me. It's a kit manufacturered by someone too lazy to do the research and fabrication that would make it a bolt-on kit. :eek:

Originally posted by SleeperCivic
I think the DRAG kits suck ass. the normal kits come with a suck-ass Deltagate wastegate, :eek:

That is why I'd go with the tial 35mm waastegate. I heard that the delta wastegate sucks ass too. If you get the drag kit you'll need 310cc injectors, tial wastegate, better fuel pump....and I heard the manifold wasn't all that good either...but what other manifold would fit? And if the turbo that comes with the drag kit sucks....what other turbo can fit to that manifold???? Would the new garrett GT series fit?