Jhofbauer94

I have a stock b18b1 motor swapped into my db1 integra and i wanted to get a new exhaust and decided to go with 4-1 headers and 2.5" custom piping with a test pipe to pass "inspection" and a 2.5" vibrant racing muffler (fart can). Will this increase performance because of the increased flow or because its a stock (Not built\NA) motor, just not have enough back pressure and provide less of a performance increase? Help and tips appreciated.

B_Swapped93

Biggest myth out there ! you'd lose some low end TQ that's it but no won't gain anything save from maybe 2hp.

Jhofbauer94

So im just getting a new\louder exhaust? Lol I've just heard from people that 4-1 headers and 2.5" straight piping makes a "noticeable" difference..

B_Swapped93

not on a stock b18 non vtec, "placebo affect"

Jhofbauer94

Gotcha, thanks alot for the input!

$MIKE$

iTrader: (13)

Intake headder exhaust and get it tunned I don't see why you wouldn't pick up at least 5-10 whp. Plus it will sound better and be more responsive.

Save up for a vtec head.

Schister66

You would be better off saving for a VTEC head rather than wasting time and money making your car louder, not faster. A header and exhaust on an LS is going to add maybe 2-3hp without tuning... its a pipe dream to think you'll make any more. On the other hand, the VTEC conversion will bump your car up to roughly the same power level as an Si/GSR (160-180hp) from ~140hp

Jhofbauer94

How much does a tune cost and where would I even get one done? I know basic mechanics, sure that makes me sound like a dumbass. But I do want to do a vtec conversion but ive heard it makes it unreliable and it doesnt seem to be the most simple thing to do.. like I said, I know basic mechanics. I can and have done everything but engine\transmission work.

B_Swapped93

4-500$ for a tune, call your local performance shop etc. nope just can't rev as high as their factor vtec counterparts off the get go. that can easily be fixed with ARP rod bolts. the conversion is easy get a GEA or BWR full conversion kit bout 150-180$.

Schister66

An LS/VTEC conversion is only as reliable as the person building it. If you half-*** everything and slap it together, yes it will be unreliable, but if you take your time and do things right, it is just as reliable as an OEM engine.

I wouldnt bother wasting your money on a tune with a stock LS...you may as well Paypal that money to me, it'll net the same result

Jhofbauer94

Lmao I wouldnt tune my stock ls unless it was in the 100 dollar range but if I were to go lsv or boost it, id plan on tuning it. But thanks for the input everyone!

EE2bitsk

best advice on here. my old ls/vtec had the **** ran out of it and it ran perfect, never had an issue with it. if you do get a head, get a b16 head.

Jhofbauer94

How much did you spend to do that? Did you upgrade any internals?

EE2bitsk

I bought the motor from a friend, it was fully built though.
it's not gonna be cheap I'll tell you that.

Jhofbauer94

Yeah, just debating on whether I should run boost or lsv. Assuming neither will be cheap.

EE2bitsk

boosting the ls would be cheaper.

supersilverdc2

Boosted for the win.

supersilverdc2

Lsvtec built a few times reliably here. ACL yellow race bearings (main and rod) , arp rod bolts, arp head studs. Shot peen the LS rods if you can to strengthen them since they are the main failure point. Or get new h beam rods and piston combo. You'll be happy with the outcome,,, also if u boost keep the ls tranny, if you don't boost ditch it for a gsr tranny .

B_Swapped93

B20v's are always over looked lol, but for boost an ls will suffice better then a b20 9/10 times.

Jhofbauer94

I was planning on boosting with a 575 dollar kit from jdmcarboy and getting a garret 25mm baby turbo off my boy for 200.. Assumed the "ebay" kits would only have shitty turbos and everything else couldnt really be bad considering its just piping etc. But want to compression test first to see how healthy it is and replace head gasket and get arp head studs and get a tune. Opinions on that? Dont want to spend more then 1000-1500 to boost but dont want it falling apart lol

B_Swapped93

first mistake right there a good manifold will cost that...

get it tuneed after all turbo set up is complete

1.5K for a boosted b-series sure it can maybe be done but it will be unreliable do you know all the electronic parts you'll need too ?

EE2bitsk

go to homemadeturbo.com and check out some setups there.

Schister66

If you're worried about the LS/VTEC conversion costing too much money, then dont even begin to consider a turbo setup. Those Ebay kits are complete garbage and will end up costing you time and more money in the long run. Some tuners won't even work on cars with China turbo setups..be warned.


Now, lets pretend you do want to turbocharge it (and build something that performs and lasts), plan on it costing $3-4,000. Even with the eGay turbo "kit" you will still need to buy injectors, a fuel pump, clutch, EMS, exhaust, and get it professionally tuned. Turbo kit aside, its an expensive endeavor and thats before you have to replace the garbage turbo, thin-walled tinfoil manifold, and rip-off wastegate.

B_Swapped93

Thank you ! everytime I post those number(or above) ppl be like I can turbo it for 1.5K and be reliable . We have a "basic" list for turbo set up parts at Teknotik and even then it runs 4.3K +/-, needless to say most ppl re evaluate what they want to buy after going threw it lol.

Jhofbauer94

Lmao yeah, thanks for the info. Im asking questions because I dont know. Only assumed youd need injectors, internals etc. If you wanted to run alot of boost. I planned on running 10 at the most. But well see.. thanks again for your input.