LS/ VTEC Turbo?

Ok I am trying to help a friend with his 99 Teg. He wants a Turbo setup or boost friendly at the least. He has a 99 LS. He also wants it to be VTEC. Therefore I have suggested a LS/VTEC Turbo. I understand what may need to be done, but would like more suggestions and some real stats on different heads. Like a GSR head.
Thanks for any help
Peace
Drew

Some pics of a recent LS/Vtec Conversion can be found here

http://www.automotiveforums.com/vbulletin/t80140.html

Its a 1988 Civic DX hatch, and here are the specs

94 GSR head
CTR cams
Skunk2 cam gears
itr valvesprings
itr retainers
itr valve guides
itr motion assembly
5 angle valve job (stock valves)
port & polished
Skunk2 intake manifold
BBK 70mm TB (match ported)

B18A block
US itr pistons (.25 over)
shotpeened rods
balanced crank
Spoon oil pan
Clutchmasters lightened flywheel
ACT clutch

YS1 LSD tranny
Chipped PR3 (5500 Vtec, 9500 rev limit)

as far as the turbo goes, you would need to do some more research.

I plan to keep the stock LS bottom end for low compression reasons!
Peace
Drew

Sounds awesome I have also been pondering the same idea but with an b20 block and obd1 gsr head.

what are some of the downfalls of having a vtec?

Originally posted by pontiactrac
what are some of the downfalls of having a vtec?
Not many downfalls...better mileage, response, everything...

But then, there is the problem of putting a VTEC engine into a non-VTEC car; therein lies some of the downfalls.:(

ls/vtec is going to have about the same compression as a stock b16 10:1. the downfall to ls/vtec is the fact that ur going to have too long of a stroke with a short block. the angles don't fire exact either, causing the motors to be a lot less reliable. its tough to explain in my own words...jus goin off wut i read. i kno that if u do work with the set-up, ur going to have a lot more mainentence then a normal motor. but its DEFINATELY worth it. those motors are nice an strong...my buddy's got one in a h/b, an his pull in 1st an 2nd are unreal (for only have i/e).

My friend who knows alot about cars had told me that ferrari is or has already came out with a new engine that uses a concept similar to the vtec but obviously more advanced. Anyone here the same?

i kno that most euro cars have had similar things to VTEC for a while. of course toyota came out w/ vvtl-i which follows the same basic priciples jus in a different manner. a lot of cars are simply using "variable timing" an the such. i'd think a power-house like that would be on top of technology like that, so no big surprise. :D

i just hope American manufacturers will create a similar product. they'd be so much better econonic wize and much more competetive. Hopefully it could be made to fit v8's and such. but i guess if ferrari is doing something similar with their v12 anythings possible.

BMW has a VANOS system; I'm not really sure about Ferrari though, although they say the implement a whole range of F1 technology on their cars, so I wouldn't be surprised if they used such a system.

for those of you that wants LS/VTEC your car isn't going to last long. as far as i know most of the people i know that have ls/vtec their car doesn't last really long and plus it's hard to maintain a ls/vtec turbo car.

u can't say that it won't last long. no it won't last as long as a normal motor, but it'll be fine as long as you keep it up (frien has had one for a year, an races it everyday an it still runs strong). yeup, it does take a lot more maintenence, but i think it is worth it.

Originally posted by 98gsr
for those of you that wants LS/VTEC your car isn't going to last long. as far as i know most of the people i know that have ls/vtec their car doesn't last really long and plus it's hard to maintain a ls/vtec turbo car.

i only agree with the statement with the added turbo. turbos are so much of a hassle,and arn't great for ur engine(or insurance) some cars u even have to let them idle in "park" for a minute to avoid overheating, before u step out. but that goes with any turbo car. i am more of a supercharger man, but my car wasn't the GTP so i couldn't have one. but then again even they are extra maintenience.

Okay, okay...

First of all the Ls/Vtec swap can be just as reliable as any other motor setup out there if you have a good swap. It is recommended to replace pistons, rods, camshafts, fuel rails, intake manifold, and the ecu of the LS. A new block guard wouldn't be a bad idea either.

One of my buddies has had his Ls/vtec engine in his 97 Integra for about a year now, and his head came from a 99/98 GSR that had 40K on it. He is probably the worlds worst for maintaining an engine. Anything that even sounds similar to a tune up I've had to do for him. He has about 90K miles on the car. With him not changing the oil regularly and and not checking his water and not cleaning his filter, his engine still runs strong and clean. Once he had a ruptured radiator hose but didn't find out until a week later. He had to keep putting water in the car everyday. It was a small leak but it did over heat quite a bit. When he last took his car in for a check engine light and power loss at a profesional Honda repair shop. The mechanic complimented him on his engine saying that his engine internals were still in top notch shape except a busted valve which looked like damage rather than wear. He then had the valves replaced in it and it runs even harder now.

So saying that a Ls/vtec is not reliable is BS. I plan on turning my Integra Ls into a vtec one of these days. Until then you can check me in your rear veiw.

My buddy is currently doing the b20 block with b18c1 head ... havent gotten any of it together, but here are pics of the progress

http://www.automotiveforums.com/vbulletin/t96092.html

bump

:bananadie

who would put the B18C head on a LS block? the B18C head is going to be more expensive and harder to find versus the B16A. the B16 actually flows better also, to my knowledge. if only the B18C is available, thats cool, but i would still search for the B16. just trying to help.

cause its a GSR ... so he already has the b18 head at his disposal.

I have done the LS/VTEC turbo it was a pain in the ass you have to rewire the whole car but if you want to do turbo in it you need to build up the block the thing that i did was bore the block .20 over and put a set of SRP 11:1 pistons and I have a B16a2 head on it and the piston and the head make the motor 10:4:1 and then put forged crank and rods then I went to the head and put a set of Skunk2 springs and retainers and then put the civic type r intake cam which made alot of power put a STR Throttle body and Fuel Rail with an AEM fuel regulator and a set of RC Engineering injectors for the turbo and to get rid of the exhaust I put a 5zigen fireball 2.5" from downpipe back and thats the motor and for the turbo kit I bought a Drag 3 kit but instead of there intercooler I got the Greddy Type 24V because bigger is better the car ran a 11.4 on slicks and a 12.0 on drag radials and I dynoed at 320whp and 290lbs/torque @ 12lbs of boost but all in all its hard but it is worth it