i found someone to make my car a gsr (the ls/vtec swap) for $1500....find someone who has access to parts from a junk yard and has done lots of swaps before.

 

eh...

Turbo VTEC > just Turbo :thumbup: :thumbup: :sqfawk:

 

TURBO LS/VTEC

 

I beleave he was refering to the option of a having an B18 engine with a turbo, or a B18 engine with a vtec.

Obviously turbo vtec is going to have some advantages over a non-turbo vtec.

The B18B is a good engine to turbo though,
this is taken from the Honda performance FAQ

 

I wish I had spent the extra $$$ for VTEC . But I am still happy with my Non-VTEC LS. Have had virtually no problems with my car..That's why I bought it in the first place.

 

i got an LS with i/h/c/e...then i drove my friends GSR with i/h/e......needless to say i almost cried when i had to get back into my LS..

 

All VTEC does is make your engine (more) efficient at higher RPMs. Basically giving the engine a new lease on life around 5k when most other non variable timing enabled engines seem to lose their guts. Its not a magical silver bullet and ALOT of car makers use similar engine management to VTEC. Ferrari for example has a extremely efficient version which basically uses 3d cams so instead of a on/off switch like VTEC the car is always making as much power as it can at any given time. Very nice. iVTEC is similar in power curve I think but I have not done my homework on it because I don't have a car with it nor am I getting one. =)

A turbo car will be able to make more power than a GSR easily and it would probably be faster in all cases. The only downside that I could see besides running boost in a engine not designed to be turbo'd is that you lose out on the normally aspirated feel to the car and the sound and whatnot. Some people just like NA cars more than turbo'd cars. I like NA more than I like a turbo'd car but I'm not crazy about spending a hellva lot of money trying to make a NA car faster...I don't own a domestic or anything so the gains don't out weigh turboing of course...anyway now im rambling and im going home

 

DOHC VTEC is definitely not overrated, it is awesome. SOHC VTEC is highly overrated however. If I see one more Civic with a VTEC sticker I'll kick myself.

HOWEVER, non-VTEC cars can be made very quick, even NA.

 

i agree, i work at the honda dealer, the newer Civic EXs are alot slower than i expected, maybe im just spoiled but obviously a turbo car is gonna run faster than a stock VTEC motor. if i had an LS, i would probably go turbo too. im not sure where that one quote came from with the "The B18C has higher CR so can't take as much NOS or boost. Say 6 PSI boost and 80 HP NOS. Sure some people get more HP and some people tow their car home, The B18B has a way stronger rod and lower CR so you should be able to get 7.5 PSI boost and 100
HP NOS." but i really hate to see this. sorry to tell ya, but the GSR motor is just as good to turbo, higher CR just means you dont have to run as much boost to make the power. higher CR = more power, sure it means upgrading fuel and tuning whatnot, but most people are not gonna just slap on a turbo without doing something to the bottom end or upgrading the fuel. you can turbo an LS running like 12psi and only be running like mid 13's. and although the LS rods are stronger, theyre also longer, which means its got a worse RS ratio, which means it shouldnt be revved as high, which means it wont utilize the full potential of the turbo, VTEC motors are made to rev higher, a B16A block would be awesome for turbo as it has a near perfect RS ratio, you can rev the hell outa it. theres alot of other stuff involved in this, dont have to go thru all of it, thats all for now.

 

The B18C1 does have a slightly higher CR ratio.

What the honda performance faq (where i got the quote) was getting at is that the B18B is better suited for turbo out of the box because of the lower CR ratio and the thicker rods.

They were not refering to a fully built turbo engine, just the compairison of each out of the box. Lots of people don't do any internal modifications, they just run 6-8psi with proper tuning/fuel management.

I don't know if the higher CR ratio of a B18C1 makes more power than 1-2psi more of a turbo. My guess is not, but thats just a guess.

Obviously a B18C1 turbo has many breathing advantages over a B18B turbo, either way you are going to have a nice fast car.