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Chat General Discussion About The Nissan 240SX and Nissan Z Cars |
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11-29-2018, 01:48 PM | #31 | ||
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http://dsportmag.com/the-tech/how-to...of-any-engine/ http://www.ka-t.org/forums/viewtopic.php
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11-29-2018, 02:44 PM | #33 |
Zilvia Junkie
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I guess i could do up some pros and cons on Ka24de, since we're talking about it.
Pros: -original equipped engine, so no dot/carb/epa/etc. fussiness -iron block durability -good low/midrange tq due to long stroke and displacement -decent rod/stroke ratio even with larger displacement -simple shim over bucket valvetrain -240 KA blocks utilizes a one piece main cap girdle design and piston squirters -Factory forged crank and rods -Aftermarket support has gotten better in the last 10 years Cons: -original engine, so high mileage engines will probably need a refresh/rebuild in most cases -iron block is heavy -Distributor ignition -Factory cams are bad in any application except maybe economy -long stroke = reaches critical piston speeds quicker -Half counterweighted crank -Cast pistons, low hp capacity -aftermarket support still isn't anywhere near sr20, evo, etc.
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11-30-2018, 06:37 AM | #34 |
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What about 4G63?
Pros: Massive aftermarket support Factory internals good for 400wtq Legendary iron block durability Great oil pump hydraulic lifter head that's good for short bursts to 10,000rpm+ Mivec (Evo 9) for a broad power band Bellhousing adapters available for a variety of transmissions Cons: No swap kit, so everything is custom fabricated Cooling system needs to either be modified or coolant routed from back of head Not a popular swap, so very little support for "swap problems" Heavy Reliability modifications necessary (Balance shaft delete)
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11-30-2018, 10:48 AM | #36 | |
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What I do want to see since I havent seen any proper numbers or reviews is the tomei poncams for the KA, I wouldnt mind the less torque to save my stock trans for some more highend rev and more brap sounds. |
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11-30-2018, 11:46 AM | #37 |
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As much as I love the 4G, it seems overly complex to achieve the same results a properly sorted VET will get you sans the complexity of making mounts, trans adapter, intake manifold, exhaust manifold, coolant routing, etc etc. 4G iron block is soemwhat heavier than the a SR.
Non billet mains, etc should be good for just shy of 600WHP before block cracking issues on stock sleeves. At which point, a proper Plazaman girdle and billet mains and you are good for well over 800 WHP. Throw some sleeves in and you are at the cost of entry for custom trans adpater, mounts, etc just to get the 4G into a S chassis. |
11-30-2018, 01:05 PM | #38 | |
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Quote:
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"Simplicity is the key to brilliance." - Bruce Lee |
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11-30-2018, 02:00 PM | #39 | |
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11-30-2018, 02:59 PM | #40 | ||
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Negative. There are no 4B11's in longitudinal applications. The genesis engine is 2-bolt main, different head, etc.
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Yeah it's all pretty close. VE head is much better than a 4G63 flow wise. The dirt cheap engine and lack of expensive machining is really the only advantage if you're looking to push big power I guess.
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08-21-2019, 05:18 PM | #42 | ||
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its too easy because it comes in the 240 I want this but lets include other platforms, cars, etc... any car that you think is worthy RWD candidate... weight, style, parts, it all counts and if it isn't we will all point and laugh Quote:
What is 4g63 weight, we must compare it with sr20, and aluminum LS engine for sure. Also 3SGTE and similar 1.8L engines I am curious weight difference. Nothing quite like removing 100lbs from the nose of a RWD vehicle. There are not many FWD engines I would adapt to RWD but the 4G and similarly famous 1.8~range is applicable. I am curious about the ignition, dwell, coils, typical gap, racer details. Oil control strats that work right out of the box, where do most people buy their 'built' 4g63, what piston alloy is typically selected, the list man we need the list I'm curious about corolla-weight cars (2200-2800 ranges) using 1.6-2.2L engines RWD around 300-500hp... And slightly heavier options (2800-3400lbs) using slightly larger engines (2.5-3.5L) and of course an aluminum LS can go into anything easily so thats always a worthwhile comparison contrast unit. The LS platform is sort of like a 'bare minimum' or how you say 'standard comparison' because there are so many statistics on them in all manner of weight range RWD platforms... so this is a chance to see how other platforms and engines stack up against them. I'll come back eventually with some more SR vs LS in a 240 platform comparisons but I want to learn more about the other engines and cars... thank you those who contribute valuable experience there was more than just the above those were just highlights so far |
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08-22-2019, 06:58 AM | #44 | |
Leaky Injector
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They seem like stout little engines, main cons are the sump set up when converting to RWD, the inlet options when converting to RWD and also the transmission options. I recently bought a K20A6 (9.5:1 CR) for £80 (~100USD) and sold the transmission for £70 (~85USD) - they can be picked up cheap. |
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08-22-2019, 11:18 AM | #45 |
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^^ Apparently Touge Factory is working on a "bolt-in" K-swap kit for the S-Chassis... It's going to keep the stock subframe and steering rack.
Hert did a video with them talking about it on his way to Final Bout. |
08-22-2019, 01:02 PM | #47 |
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13b rotary
pros revs to the moon! lol 9k factory smooth power delivery small size ~300lbs with all accessories self "cleaning" fewer moving parts so less to worry about best power delivery ratio can just add more rotors to make more power easy to rebuild cons high heat seals develop carbon buildup quickly causing loss in compression and need for frequent rebuilds poor economy compared to similar engine displacements consumes oil due to oil injection system launching can cause rotors to become inbalanced factory ignition system tends to be weak rebuild easily messed up with seals being primarily silicone ej25 pros self balancing lots of power per displacement efficient and compact design design enables engine to be mounted lower and thereby lower center of gravity of vehicle factory up to 400hp reliably easy to work on easy to maintain easy to rebuild cons high heat head gaskets blow as apparent regular maintenance (normally due to overheating) poor economy compared to other 4 cylinders parts are a little pricier factory exhaust also causes heat buildup contributing to burnt valves factory pistons can crush ringlands without changing factory configurations (boost, fuel, timing etc) bulky horizontally due to tall heads on either side lots of electronics that fail, especially emissions devices poor economy with modifications, scaling far worse than other 4 cylinders eg: 565 injectors ~23mpg mixed on my sti, 1300 injectors ~16mpg mixed driving (i know can get smaller injector and prob would do better lol) factory tune contributes to engine failure factory oiling system prone to issues both just thoughts i had regarding a blown rotory i just swapped out for a guy and my current sti! |
08-22-2019, 01:27 PM | #48 |
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Mercedes- Benz M270/m274 found in the Infiniti Q60. Pro it can handle 400hp in the 2018 or newer versions.
Cons it only comes awd or fwd. I was told there is a rwd version in Germany, but couldn't find it. |
08-22-2019, 04:12 PM | #50 |
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08-23-2019, 06:00 AM | #51 |
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Only problem with the k swap is the height of the engine. I know Speed academy had to space their subframe down and was hoping TF would find a workaround but i talked to them and they had to space it down as well. They said it was only 7mm but till kinda annoying
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08-23-2019, 08:36 AM | #53 | |
Leaky Injector
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Once I have developed this I will look into a tubular (read thinner) subframe to help drop the motor even lower. |
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08-23-2019, 09:42 AM | #54 | |
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08-23-2019, 01:17 PM | #55 |
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08-23-2019, 02:30 PM | #56 | ||
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These two things do not correlate. Also EJ25 in an s-chassis? That is something I've never seen/read/heard of
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08-23-2019, 11:48 PM | #57 |
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I hate to eliminate them but the V6 and split 4-cylinder designs do not apply in this thread at all in any shape or form for a variety of reasons, mostly due to inherent complexity vs superior alternatives.
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08-31-2019, 09:48 AM | #58 |
Leaky Injector
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https://www.sxoc.com/vbb/showthread....-Sil80-Project
4G63 swapped 200SX S13. Seems like a really interesting build, more for the technical stuff like the wiring and how the owner has engineered the shifting geekery on page 9/10 |
09-01-2019, 08:22 AM | #59 |
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There's a guy here that swapped a BEAMS 3sge from an Altezza into an s chassis. Seems like a great alternative to the SR and the exhaust side is on the same side to make plumbing for fuel and exhaust easier. The closed deck iron block and the Yamaha-built high flowing dual vvti cylinder head make for a stout NA or boosted engine. They also come with a 6 speed trans and are less than $1500 for a motorset.
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09-03-2019, 01:02 PM | #60 |
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hexa garage made motor mounts that allow for a vq35hr to fit under a stock hood. Might work for the vq37 too but im not sure. Not a bad route for easy and reliable 300-330hp.
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