Topline Engine Rebuild Kits...?

[my1st240]

Has anyone ever order one of these? If or not or if so is is better to get the oversized pistons, rods, and bearings? I want to go ahead and rebuild my motor before I start to do anything to it since it has 171K on it. Thanks.

[PROJECTRB240SX]

ONLY GO OVER SIZED IF THE ENGINE WAS BLOWN OR YOU WANT MORE POWER AND PLAN ON SLEEVING. YES TOPLINE IS GOOD ITS ON PAR WITH OEM NISSAN PARTS. I HAVE USED TOPLINE IN A CIVIC, ECLIPSE AND A FRIENDS 240SX. IF YOU GO OVERSIZED YOU WILL WEAKEN THE CYLINDER WALLS AND LEAVE YOU MORE SUCEPTABLE TO CYLINDER DAMAGE. I HIGHLY RECOMMEND SLEEVING THE CYLINDERS. HOPE THIS HELPS.

[my1st240]

Sure does. So I should just go with the standard size they recommend for the rebuild. I don't think my engine needs rebuilding just yet, but it doesn't hurt to have the materials laying around when it does. Thanks.

[PROJECTRB240SX]

OK IF YOUR ENGINE NEEDS A REBUILD GO ABOUT .20 OVER OR WHAT EVER THE CYLINDERS REQUIRE. WHEN AN ENGINE NEEDS A REBUILD IT USUALLY NEEDS TO GO BIGGER BECAUSE OF WALL DAMAGE, KEEP IN MIND THIS USUALLY HAPPENS NOT ALWAYS. IF YOU HAVE TO GO BIGGER I WOULD DISH OUT THE CASH TO SLEEVE, THIS IS JUST LIKE THAT AUTO RENTAL INSURANCE POLICY.... SURE ITS $15 DOLLARS EXTRA A DAY BUT IF YOU GOT STUPID AND DECIDED TO BLOW UP THE RENTAL ITS THEIR PROBLEM. WHAT I AM TRYING TO SAY IS TAKE THE EXTRA PRECAUTIONS AND PROTECT YOUR INVESTMENT.

[my1st240]

Where can you order new sleeves from? Also do I have to specify which size I would like to order from Topline? On the website it just says to state if you want oversize or standard.

[PROJECTRB240SX]

STANDARD FOR OE, .020 FOR 20 OVER, .040 FOR 40 OVER, ETC.WHERE ARE YOU LOOKING? GOTO IMPORTPERFORMANCEPARTS.COM AND THEY HAVE ANYTHING YOU'LL NEED INTERNAL ENGINE-WISE

[my1st240]

yeah that is the website I went to for the engine rebuild kit. So I need to specify 20 over when I order. I appreciate your help by the way.

[my1st240]

so the lasco sleeves they sell are pretty reputable? Also, which size would be best. The thicker the wall thickness more stength I am presuming. So would a 1/8" work good?

[PROJECTRB240SX]

YES, BUT YOU NEED TO FIND OUT HOW MUCH CYLINDER GAP THERE IS, AND YOU SHOULD HAVE A MACHINE SHOP LOOK AT YOUR ENGINE FIRST CAUSE .020 OVER MIGHT NOT BE ENOUGH IF YOUR WALLS ARE WARPED AND THEY CAN TELL YOU HOW THICK THE SLEEVE SHOULD BE. NO PROBLEM I WILL HELP IF I CAN BECAUSE I WOULD LIKE HELP IF I NEEDED IT.

[PROJECTRB240SX]

LASCO IS THE STAINLESS SLEEVES RIGHT?

[my1st240]

I am not sure I would have to look again.

[PROJECTRB240SX]

HOW MUCH POWER ARE YOU LOOKING FOR?

[PROJECTRB240SX]

BRASS IS DENSER AND STRONGERSTEEL IS THICK AND ALITTLE SOFTDUAL LAYER BRASS AND STEEL IS ULTRA-STRONGTITANIUM IS THE STRONGEST BUT HAS ABOUT A $500 PER SLEEVE PRICE TAG.

[my1st240]

I do not really care about the power, I am just going to do basic upgrades: I/H/E, cams, and maybe a 75 shot of nitrous. I just thought I might think about rebuilding since the motor has 171K on it. But I see on here some people's motors have over 200K and quite a bit of mods.

[PROJECTRB240SX]

OK SO JUST DO A REBUILD WITH SOME LASCO SLEEVES AND YOU SHOULD BE FINE FOR WHAT YOU WANT. WITH .020 OVER YOU COULD GET ABOUT 10-15HP ALONE, DEPENDING ON THE COMPRESSION RATIO. THE LOWER THE COMPRESSION THE LESS HP.

[PROJECTRB240SX]

LOWER YOUR COMPRESSION TO ABOUT 9/1 OR 9.5/1 MAX IF YOU ARE GOING THE NO2 ROUTE.

[my1st240]

Wouldn't the pistons that Topline sell be stock compression? So I should go ahead and order the 20 over kit and the take it to a machine shop and see what size sleeving is needed?

[PROJECTRB240SX]

YEAH, YOU CAN SPECIFY A COMPRESSION THOUGH. WHAT ENGINE ARE YOU USING? IS YOUR ENGINE RUNNING GOOD AND STRONG? ARE THERE ALOT OF VIBRATIONS OR KNOCKING NOSIES AT IDLE? HAS YOU LOOKED TO SEE IF YOUR WALLS ARE WARPED? 20 OVER MAY NOT BE ENOUGH. ALTHOUGH IF YOUR ENGINE IS RUNNING WITHOUT A PROBLEM IT SHOULD BE FINE.

[my1st240]

The engine is running fine right now, just high mileage. It is the KA24DE.

[PROJECTRB240SX]

OK ARE YOU GOING TO GO TURBO? ARE YOU GOING TO STAY AT 75 SHOT?

[my1st240]

I am just going to stay at a 75 shot maybe a 100 shot every once in a while. With all the upgraded fuel delivery.

[PROJECTRB240SX]

OK THEN GET A THICKER HEAD GASKET TO LOWER YOU COMPRESSION TO ABOUT 9.5/1 AND REQUEST 9.5/1 PISTONS IF POSSIBLE.

[my1st240]

Ok, thanks I appreciate it.

[PROJECTRB240SX]

NO PROBLEM ANYTIME. IF I DECIDE TO DO MY KA24E PROJECT AFTER I SWAP MY RB20 I'M GONNA NEED A CAR TO PUT IT IN. SO IF ANYONE IS WILLING TO GO THROUGH DRIVETRAINS LIKE MONEY, I'LL BE WILLING TO LET THEM TEST IT. BUT THAT IS IF I DECIDE TO DO IT.

[TomsMR2]

goddamn. DONT DONT DONT get a thick headgasket to lower compression.

dont sleeve an NA cast iron motor. hell, alum block dont even need sleeving till pretty damn high power.

if your engine is running fine, just high miles. DONT overbore. save that for when/if you need it. go stock everything, and have the head and block properly prepped, and the cylinders honed. do a proper break in (ie: flog the hell out of the car) and you're set.

note: listening to musicsufman may result in severe car damage, and/or lowered iq. you've been warned.

[my1st240]

Yeah, I talked to a local guy and he told me do not re-sleeve the block b/c of it being cast. I have decided to just save up some more cash and go with forged pistons and rods.

[PROJECTRB240SX]

OK HOW DO I CAUSE SEVER CAR DAMAGE? UMM ALL MY BLOCKS HAVE BEEN SLEEVED EXCEPT FOR THE ONE THAT IS COMING OUT OF THE 240 NOW. MY RB IS SLEEVED AND MY FORD BLOCKS WERE SLEEVED, MY CHEVY BLOCKS WERE SLEEVED AND I HAVE NEVER HAD A PROBLEM. I TOLD HIM NOT TO OVERBORE EARLIER ONLY UNLESS NEEDED. IF HE PLANS ON INCREASING POWER LATER WHY NOT UPGRADE WHILE HE IS IN THERE NOW? AND TOMSMR2 WHAT MAKES YOU THE UPMOST AUTHORITY ON ENGINE BUILDING? I TOLD HIM THESE THINGS AS MY METHODS AND WHAT I RECOMMEND, NOT AS FACTS OR ANYTHING THAT HAS BEEN PROVEN.

WHATS WRONG WITH A THICK HEAD GASKET? IT CAUSES NO PROBLEMS. HEAD GASKETS IS A METHOD USED ALL THROUGHOUT THE RACING WORLD FROM IMPORTS TO DOMESTICS, DRAGS TO ROAD RACING. HOW IS THICK HEAD GASKETS BAD IF ITS USED SO WIDELY? I HAVE DONE THIS TIME AND AGAIN AND HAVE NEVER BLOWN A GASKET, OR DAMAGED ANY INTERNALS.

THEY TOLD YOU NOT TO RESLEEVE THE BLOCK BECAUSE OF THE HIGH COST TO LOW POWER RATIO YOU WANT TO ACHIEVE. IF YOU PLAN ON GOING BIGGER YOU SHOULD 'CONSIDER' IT, ALTHOUGH THE CAR GOD SAYS NOT TOO.

WELL I'LL GO BACK TO BEING A WALL FLY CAUSE WHAT I HAVE TO SAY IS UNWANTED SO WHATEVER.

[my1st240]

I appreciate your advice. I have also had experience with thicker head gaskets and I have never had a problem with them either. I guess some people are skeptical about them.

[PROJECTRB240SX]

I JUST DON'T UNDERSTAND WHY EVERYONE ATTACKS ME FOR MY VIEWS AND WHAT I WOULD DO. I HAVE DONE MANY A THING ENGINE WISE AND THEY HAVE ALL WORKED FOR ME SO I JUST GIVE MY ADVICE OF WHAT I WOULD/DID/WILL DO.

BTW, I CHANGED MY SIGNATURE TO INFORM EVERYONE THAT I AM AN IDIOT AND NO ONE SHOULD LISTEN TO ME.

[TomsMR2]

^ because you're retarded. no one should listen to you, you're absolutely CHOCKED full of misinformation.

i have never, ever seen someone blow a cast iron block.. even when pushing 300hp/L. resleeving a cast block is just retarded. ive read your posts, and they're all gibberish about stupid "high lift short duration cams" or other tuning bs. in fact, i dont believe you've ever tuned or rebuilt an engine in your life.

the raw physics of a thick headgasket shows that they're many times weaker than thin gaskets. people DONT use them in racing. they alter compression by swapping pistons. thick gaskets are a weak link. yes, they might work, maybe for a long time.. but personally, i dont like ADDING weak links to my engine.