l s or stock 91 si with t u r b o ?

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Old Oct 17, 2006 | 06:15 PM
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Default l s or stock 91 si with t u r b o ?

My friend has a 91 ls for 350, but i was going to put a turbo and i think that should run 1000 tops. The ls will need a timing belt and axles, mounts,header shift linkage and who know what else, and this is to gain what 30 hp and 100 pounds so i guess i am just asking for some advice thank you.
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Old Oct 17, 2006 | 06:18 PM
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Default Re: l s or stock 91 si with t u r b o ? (boston's_rex)

Turbo the A6 so long as it in in good condition. Turbo'ing the A6 will not only be faster, but cheaper if you know what you're doing.
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Old Oct 17, 2006 | 06:35 PM
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ls
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Old Oct 17, 2006 | 06:38 PM
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Default Re: (4doorcivic16)

LS will have more potential in the long run, but think about it. If he is looking for cheap power, there is no better way than a SOHC turbo or nitrous. The parts are super cheap, if he blows sumthing, so what. If he builds the turbo or nitrous kit properly, takes it to a dyno to get the A/F Ratio smoothed out, then it will reliably run circles around an LS all day long.
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Old Oct 17, 2006 | 06:44 PM
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Default Re: l s or stock 91 si with t u r b o ? (Tippyman)

Thats what i thought, but what about the protential of the dohc? Just to give you some info my si has 141000 and runs good and if i blow it i can put in another d as thay are a dime a dozen thanks again
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Old Oct 17, 2006 | 06:49 PM
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Default Re: l s or stock 91 si with t u r b o ? (boston's_rex)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boston’s_rex &raquo;</TD></TR><TR><TD CLASS="quote">Thats what i thought, but what about the protential of the dohc? Just to give you some info my si has 141000 and runs good and if i blow it i can put in another d as thay are a dime a dozen thanks again</TD></TR></TABLE>

I'm building a SOHC ZC (essentialy an A6 like yours) for a 75 shot of nitrous.

Here's my setup:

- Walbro 190 lph fuel pump. ($79)
- NGK two step colder plugs.($18)
- WSD Window Switch to cut off nitrous before redline. ($89)
- Replace headgasket with 3 layer metal Z6 headgasket ($60) and ARP headstuds. ($110)
- Replace T-belt, Water Pump, and Tensioner while I'm at it... ($145)
- Run a PG7 ECU to make the car run richer.
- Retard timing 3 degrees.
- Run 116 Sunoco race gas when spraying, to ward off detonation.

Once I have everything setup correctly and working, I'm going to take it to a dyno and have them correct the timing to ensure I have the correct A/F ratio.

That's basically the best bang for the buck setup you can do while still being safe.
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Old Oct 17, 2006 | 07:16 PM
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Default Re: l s or stock 91 si with t u r b o ? (Tippyman)

if the single cam still works turbo it. its still gonna be pretty fast and it will be cheaper up front
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Old Oct 17, 2006 | 08:56 PM
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Default Re: l s or stock 91 si with t u r b o ? (Pee Wee)

d-series turbo. Later on if you want to step it up a notch, you can do forged internals and arp's (for the price of hasprt mounts, axles and all of that) and be capable of 400+hp with a good tune. FWIW I'm putting in the ls/gsr tranny in my crx to hold me over while I'm building the a6 bottom end for boost.
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Old Oct 18, 2006 | 12:27 AM
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Default Re: l s or stock 91 si with t u r b o ? (13g-crx)

Non-VTEC DOHC swap going into my REX.....



ACURA INTEGRA DOHC B18A Long block:
WEB CAMS, ADJUSTABLE CAM GEARS, HSR STAINLESS VALVES, BLENDED VALVE SEATS, 1MM OVER GSR PISTONS WITH HPC SKIRT COATING, BALANCED BOTTOM END WITH ACL TRI METAL MAIN, ROD AND THRUST BEARING.LIGHTENED STOCK FLYWHEEL (APPROX:11 POUNDS)
Stock PR4 DOHC Non-Vtec head
GSR B18C1 pistons for a bit more compression (10.3.1.) ,since I'm going NA...
Teg Xsi S1 B16 cable tranny
Chipped OBD1 P75 ECU
Hasport EFB1 mounts

How about LS turbo? They love boost...

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Old Oct 18, 2006 | 09:24 AM
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Default Re: l s or stock 91 si with t u r b o ? (boston's_rex)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boston’s_rex &raquo;</TD></TR><TR><TD CLASS="quote">My friend has a 91 ls for 350, but i was going to put a turbo and i think that should run 1000 tops. The ls will need a timing belt and axles, mounts,header shift linkage and who know what else, and this is to gain what 30 hp and 100 pounds so i guess i am just asking for some advice thank you. </TD></TR></TABLE>

You need a lot more than just a LS motor in order to put it into, and run correctly, in your CRX. You can find complete swap packages for $700-$1000 for a complete cable LS changeover swap, and then another couple hundred for mounts and the correct linkage needed. Some labor and you have a mean setup with a very strong foundation to build on later (like adding turbo to it later). Spending $1000 now on a turbo kit with a small TD-04 or something turbo on the SOHC 1.6 motor will be fun at first but it won't have anywhere near the potential as the other. But it's your money and your car so do whatever you want to do.

Me &lt;--- B18B + YS1 GSR trans in a CRX

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Old Oct 18, 2006 | 09:41 AM
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Default Re: l s or stock 91 si with t u r b o ? (RVD)

Its a long going debate but here is my OPINION on this since i started with a Stock 91 CRX si...

The a6 was fun to start with but i wanted more so I built my own turbo kit, ran it for a littel never really go it perfect before the turbo blew seals...it was fun and worth it and you can make a kit for a few hundred if you know what you are doing..

I then got a deal on an LS swap and you can definately do a compete swap for s few hundred if you know where to look and what to buy...the LS stock for stock was well worther the upgrade the TQ is what really makes the difference between the a6, the car felt a lot fast and acctually I think i liked it better than the SOHC turbo...

The most recent upgrade to the LS was my HMT turbo it and believe me it is nothing compared to my old d series kit, the car rips...

D series stock is limited to around 200-220hp where the LS is more upwards of 300hp on astock motor...really depends on what your power goals are...I say the LS is the D series of the B motors since I can find them in the junkyard just as cheap and easily as D series
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Old Oct 18, 2006 | 10:08 AM
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Default Re: l s or stock 91 si with t u r b o ? (Loserkidwac)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Loserkidwac &raquo;</TD></TR><TR><TD CLASS="quote">I say the LS is the D series of the B motors since I can find them in the junkyard just as cheap and easily as D series</TD></TR></TABLE>

x2

I bought an LS longblock (no tranny, etc) for $120 from the yard. They can be found for realllll cheap.
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Old Oct 18, 2006 | 10:20 AM
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single cam FTW!! cheap and can make good power
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Old Oct 18, 2006 | 12:04 PM
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Default Re: l s or stock 91 si with t u r b o ? (boston's_rex)

go with the boosted a6,i have that setup in my rex and i love it
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Old Oct 18, 2006 | 12:10 PM
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Default Re: l s or stock 91 si with t u r b o ? (ef-t3)

endless debate, search and read both sides.

You will know what's best for you better then just giving into hearing TurBO dAt 1Sh s0n!11

or B serzie f0 liyfe!

You really need to think about alot of things, like how much money do i want to shell out am i doing the work my self, how much more do I want? Will i be willing to do XYZ for this car? Can i go with out ABC?

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Old Oct 18, 2006 | 04:50 PM
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Default Re: l s or stock 91 si with t u r b o ? (Capt. Blonde Beard)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Capt. Blonde Beard &raquo;</TD></TR><TR><TD CLASS="quote">Will i be willing to do XYZ for this car? Can i go with out ABC?

</TD></TR></TABLE>

Hooked on Phonics. (Mechanics edition.)

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Old Oct 19, 2006 | 04:53 AM
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Default Re: l s or stock 91 si with t u r b o ? (CRX_1.8T)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CRX_1.8T &raquo;</TD></TR><TR><TD CLASS="quote">

x2

I bought an LS longblock (no tranny, etc) for $120 from the yard. They can be found for realllll cheap.</TD></TR></TABLE>

sometimes i hate you guys out in California. i've been looking for an LS swap off and on, locally, and the best price i've ever found on a long block was around $600 or so. full swap almost $1k! bastards. (the junkyards, not you all in Cali)

but we don't have emissions or vehicle inspections, so that's o.k.
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Old Oct 19, 2006 | 09:30 PM
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Default Re: l s or stock 91 si with t u r b o ? (jhota)

Thanks for all the feed back! The funny thing is i was looking for a ls for a long time then the more thought about it the more i wanted to go turbo, Then out of no where this comes up. I'm thinking i can pick it up and even sit on it until i can build it. or even turbo the A6 until it goes and buy a manifold and put it on the ls. Do you think there is a big differences from the stock A6 to the stock ls like in the 1/4 mile? I am going to do all the work my self well maby a little help from Honda-tech. Ok a lot of help from honda-tech
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Old Oct 19, 2006 | 09:38 PM
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Default Re: l s or stock 91 si with t u r b o ? (boston's_rex)

I'm not sure where the stock A6's are at with whp, but I know in the LS-T thread there are quite a few people with completely stock LS engines with 300+ whp.

I think the main thing I would worry about on a STOCK high whp D engine would be head issues. I have seen a somewhat high percentage have blown head gaskets, have heads lift, and a couple other issues. maybe it was bad luck, I dunno. But in the last several years, I have seen many D engines get beheaded.
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Old Oct 19, 2006 | 09:51 PM
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Default Re: l s or stock 91 si with t u r b o ? (boston's_rex)

that ls motor is garbage anyway,, stick with the motor you have in the car now..
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Old Oct 20, 2006 | 06:14 AM
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Default Re: l s or stock 91 si with t u r b o ? (Mr.speaker)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">that ls motor is garbage anyway,, stick with the motor you have in the car now..</TD></TR></TABLE>
There is a bad lemon in all engines.

I would say go with the LS and turbo it. I have riden in a LS turbo and I have to say....it was pretty fast. But I am thinking about doing the LSVTEC.
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Old Oct 20, 2006 | 06:53 AM
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Default Re: l s or stock 91 si with t u r b o ? (Mr.speaker)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">that ls motor is garbage anyway,, stick with the motor you have in the car now..</TD></TR></TABLE>

I'll disagree with yo on that but we are all have our opinions...

My Ls turbo is fast and i am only low boost currently...stock for stock the LS is a better motor and cable of more power when slapping a turbo on it than a D series...I'd say the major down side to the LS is the rockers...
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Old Oct 20, 2006 | 06:56 AM
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Default Re: l s or stock 91 si with t u r b o ? (harmonator84)

You guys read me wrong,i didn't mean ls motors suck...I said that ls motor (meaning the one he's thinking about) is garbage cause in his post he said it needs a timing belt,so that's not good. 99.9999% of the time the pistons hit valves
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Old Oct 20, 2006 | 07:24 AM
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Default Re: l s or stock 91 si with t u r b o ? (Mr.speaker)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">You guys read me wrong,i didn't mean ls motors suck...I said that ls motor (meaning the one he's thinking about) is garbage cause in his post he said it needs a timing belt,so that's not good. 99.9999% of the time the pistons hit valves </TD></TR></TABLE>

Ah I understand...appologie accepted
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Old Oct 20, 2006 | 03:57 PM
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Default Re: l s or stock 91 si with t u r b o ? (Loserkidwac)

the kid told me the engine came out of a wrecked car so when it came out the belt got snagged on something so i planned on taking a wrench to the cams and crankshaft to make sure everything moved freely. So do you think it is worth the 350 to just keep around to build up later ?? Thanks for your responses.
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