LS Vtec
 

Im thinking about putting an LS Vtec in my 90 si how do yall think it will run and what chassi modification will i have to do to make it fit perfictely. i got a B18A1 bottom 90-91 and a 88-99 B16A head with some CTR pistons, 1/4 how fast yall think.

It will be fast for the first 2000 miles then its going to need rebuilt... unless u take time with it u might get 3000 miles out of it... 1/2 mile im betting high 13 low 14?

this is NOT an e-racing forum
do not ask these kinds of questions

and ls/vtec is stupid...thats all im going to say about it
There are several threads that you can find on the topic by searching...I suggest you do that.

LMAO, it gets funnier everytime i see him bitch someone out for asking those kinds of questions.

hey Jayberg00 i'll give you a hint.... search. Then look here

well...I could be mean about it

seriously though...how many times do I have to say it?

i personally dont see the problem w/ lsvtec, it might not last half a million miles but its not that bad and certainly no where near as bad as Fatal070 is saying. but yeah search.

I also dont buy that "if it was great, honda would do it" that 2ndGenTeg was touting in his long post. Honda doesnt do alot of things(LIKE TURBO ANY OF THEIR MOTORS!) doesnt mean you cant do it, and get great results.

You also have to change the oil every 1,500 miles just so it will last and whats the point of making ls vtec were I bet it won't last a year...

Here since everyone is being so mean check this site out....

http://www.phatwhippincrx.20m.com/custom4.html

I took this from the site above its on ls vtec and i couldn't agree more...

"LS/VTEC is a fad, and I predict that it will be all but a pleasant memory in a few short years. As soon as kids start snapping rods and putting pistons through cylider walls, they'll realize how important good engine geometry is. Add that to the fact that they're running stock cams (because it's all their engine can safely handle) and getting burned by kids running Todas, or Juns, and they'll wish they had just stuck with their trusty B18C. Like I said, if it was all that great, Honda would have done it in the first place."

thats the exact same thing as in the ealier link!

dude, your posts on this subject are really uninformed. your spreading rediculous rumors.

Opp's didn't bother to look at the other link sorry about that...

I'm just saying things that i have heard about ls/vtec.... Im not trying to make you :mad:

well it looks like we're turning this into the official ls+b20/vtec thread....

anyway Az do you have anything to back up your side of the argument?

another thing i've noticed is that a lot of tuner mags have been doing write ups on b20+ls/vtec conversions....

Not to mention it seems like a shit load of work to get one to work, i'd rather just build a b series w/o vtec. I don't think it's so great to the point that you need to go through all that work.

I agree with you there man... it just doesn't seem worth it all that work on something that's not going to last as long as a b series that doesn't need vtec added to it...

well over time i've read alot of info about people who actually HAVE lsvtec engines and not having problems while running the engines in daily driven cars for years. When people do have problems its because the didn't do it right in the first place.

True true...

and i agree, if you have a shop build it, and design it so it can rev high, then it is possible to have a ls/vtec combination that can make some serious power and be reliable. But it's rare because most people are trying to just slap on a vtec head to their 120xxx mile B series block and think they're going to break some horsepower record. So i'd say that without doing internal work and other things to complement the new head, then ls/vtec is stupid/pointless.

point in case

backyard built ls/vtec= sucks more than a hoover
properly built ls/vtec with new internals= can kick ass

yup, kinda like using forced induction. if you do it wrong you'll screw something up, but done right you'll have plenty of power and reliability.

to do lsvtec right, everyone recommends using stronger aftermarket rods or at the very least ARP rod bolts, as well as using the oil /water pump out of a vtec block. theres other junk you're supposed to do, thats all i can remember.

Jeebus, I have a n/a b20vtec and I was gonna make a new thread elsewhere for ignition opinions. :no: I may just hafta do that elsewhere.

Comment to the guy who made the 1 year remark

By the way, my cousins got a turbo'd lsvtec and it's lasted longer than 3 years. ;)

..and no, it's not the only one that's lasted that long. :)

Oh yeah..and for the one that would rather build a b20 non vtec..I, too think that'd be spiffy, for a turbo set up.. but for the rest of us N/A set ups, we need that vtec. :)

I know I could have just quoted and then responded, but my quote thing won't work correctly. :)

That's one ironic post. It's funny how people generally say ls/b20vtecs are so unreliable, I always figured that any heavily modded car has the chance of being unreliable. As for the snapping rods and cylinder walls comment...don't ya wonder why people get sleeves? Hence why I just purchased Darton Sleeves :). Stock cams..? Of all the lsvtec/b20vtec people I know..no one has stock cams, and FYI, I used Skunk2Stage2 cams for awhile and it "handled just fine." Oh..and this b20vtec is in a 4dr GSR..so, yes, I opted and sold the b18c1 to try something else..and I might add, I happen to enjoy myself. :)

dammit.... another LSCRVTEC drama.... ha ha ha..

I feel the same tho. I think that if it's built right, it will work fine and last. My buddy hit 455whp on a built LSVTEC turbo. This is with a cheap ass GE sleeves, Eagle rods, Wiseco pistons, and stock JDM GSR head. He has been running this set-up for over a year but before that the same motor has been abused by 100 shot nitrous. I know for a fact that he beats the shit out of that car almost on a daily basis.... it still runs strong. ...... or he might just be lucky.

It doesnt matter to me. Engine dynamics becomes a sensitive subject when hybrid motors are discussed. The way I look at it, there are aftermarket options out there that can improve such hybrid applications.

........ no need to quote me..... I'm not changing my mind... ha ha. I'll just watch this topic to see how it develops. I've seen enough opinion exchanges about this subject all over the H/A web board.

Cool beans :) I just made a purchase for Wiseco this time instead of JE.

lol... so have I. 84mm Wiseco ceramic coated sides. RLZ will also hone my cylinders to perfect match the pistons.... dayummmm I cant wait. :yes:

The last block that I had and just recently sold was 84.5mm. Hm, do you know anyone that's sellin a b20 short block? I'm not too concerned if it's stock or bare, I just need one ASAP. I might even settle for LS right now. Let me know :)

I was waiting for miss to chime in on this one
took longer than I thought it would

(I LOVE it when girls talk about engines and actual parts that matter)

:toofunny: I wasn't going to say anything this time, but the comment by Fatal threw me aside. Ah well, I kept it clean, right? :)

BTW: Yay! I got a LS longblock today for $300 and it even included the intake manifold and all sensors. :yes: :yes: :yes:

Someone, still buy my pistons though.. please :(

would that be an a or b ls?

B18b. 70k miles. :)

wtf!
Why cant I find deals like that???

Because you're not a girl. ;)

Joking, but yeah, I got such a great deal! Yay :cool:

ARe you looking for something in particular though?

not that I can afford it right now...but a b18 (either b or c)
Preferably obd2

obd1 > obd2

:cool:

well yeah...but Id rather do the conversion on the ecu side w/ a harness for simplicity's sake

Hasport :)

boomslang :)
http://www.boomslang.us/order.htm
Cheaper, amazing quality, custom harnesses,.........green(?)

:no: :no: :no:
Hasport :)

I thought hasport was only for $75.

I could go check, but I'm lazy :)

So, you can check ;)

Jee Golly, I look like a smiley face wh0re.

:yes:

:yes:
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:rolleyes: :D

I didnt even see hasport obd harnesses on their site. I know they used to be expensive, they might have gone down since I last looked.

I know boomslang has a "holiday sale" every december that marks em down to $75 shipped

I wonder if I'll get shit for posting it here, but PAT, I got the pics of the longblock for ya. Sorry to post em on the actual threads, but it wouldn't lemme respond to the PM if I posted pics. :confused:

Hmph. This is exactly why I don't often post pics. I have issues. :no:

Try again. Sorry admins. :)

EDIT: I dunno how to post more than one photo per given entry. =/

Geez LYNA..make a mess why dont ya...multiple posts for no reason ;) (you can edit btw)
You have to use a host website to post multiple pics (I use http://www.imageshack.us - the text at the top is what you'll post for the pics ( [ img ] askdjf [ /img ] ) just copy and paste it into the thread

That ls looks excellent on the outside for that price...Im amazed.
Has it been opened up yet?

are you sure that's a b18b and not an a? the top looks too much like mine and a lot different that my buddy's 98 ls. i could tell it by the intake plenum too but that is not that visible in that picture

Im sure she's sure
plus it's stamped on the block

THE HEAD WONT COME OFF THE THE FRICKIN BLOCK!!

-will post more pics tomorrow or late tonight, I'm having issues. I haven't even done my homework. =/

Okay, so this head isn't coming off very easily. After an hour of trying, there's ONE bolt that's so effin' tight; I've literally snapped two sockets tonight. AHHHH, I need my BF to do it. =/. Yes, I said it, I need help. Ah well, I'll try to post some pics of the block for you too, it's stamped b18b1. :).

Anyone wanna host my photos? =/

There will be like 3 or 4. Unless ya'll want me to post it in 4 replies. :no:

email me to sdobre@earthlink.net i have about 50 gigs of storage on my webserver

Thanks in advance..and, you've got mail :)