Question about Frankenstein motors Type R B18C7/B18A1 LSVTEC

[Tuintegra]

Hi guys,

I'm considering buying an integra that was stripped and built from the ground up using a 96' shell. The engine was rebuilt with the type r b18c7 top half and b18A1 ls vtec bottom. I'm hoping if someone could provide me some information on whether this custom engine configuration is reliable and what sort of power input it provides. I'm a little iffy about frankenstein motors as I don't know enough about them.

I'll be inspecting the car today, so if anyone could giveme a list of what things I should check that would be a great help as I'm buying my first teg!

heres the link of the car:

http://www.carsales.com.au/all-cars/private/details.aspx?R=7318044&__Qpb=true&Cr=7&__Ns=pCar_PriceSort_Decimal%7c0%7c%7cpCar_RankSort _Int32%7c1%7c%7cpCar_Make_String%7c0%7c%7cpCar_Mod el_String%7c0&__N=1216%201247%201282%201252%201246%204294965322% 204294965105%20903&silo=1011&__No=75&seot=1&__Nne=15&trecs=135&__sid=122132BD61F8

[Jon_51]

if you're serious it'd be worth getting it checked out by a mechanic. if it's got 50k on the motor and the compression test is good I dare say it's a reliable build.

[simonnowis]

that swap is called a ls/vtec. I think its pretty common in the states. its basically the same as a b20vtec where you combine a vtec head with non-vtec bottom. its basically to save money bang for buck, but i would question why you would only use a b18c7 head, when the stock b18c7 longblock is pretty much an optimal build.
maybe they blow the bottom end and had to rebuild?

edit: ah just realised its a replica dc2r, anyway theres no reason why the build wont be as reliable as a b18c7 block as long as its built right. however with around that price you could probably pick up a genuine dc2r.

[xQuizit]

hey man have a read of this, tells you the pros/cons of having a LSVTEC, no doubt a Frankenstein engine can be reliable if built right!
http://www.phatwhippincrx.20m.com/custom4.html

[GSi_PSi]

that site is mainly ls/vtec bashing . It praises B16A's on there great rod stroke ratio. And how he would rather own a 13 sec B16A than a 12 sec ls/vtec.

"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." taken from the site

Doesnt that mean the B18C engine is shit aswell because of its shit r/s ratio compared to the B16A?.

[_bORdO_]

Doesnt that mean the B18C engine is shit aswell because of its shit r/s ratio compared to the B16A?.

im not sure GSi PSi you may be right ...but... for starters the B16A has smaller displacement doesnt it?

Also by decreasing the stroke you decrease displacement - therefore increasing r/s which in turn makes the B18C rev fast and high right?
But then again the B16A (as quoted in this particular website) has close to perfect r/s which should mean you'll be getting ideal output everytime you put your foot down..?

i think ive just confused myself ^_-?

[GSi_PSi]

The B18C rod stroke ratio is 1.58 where the ideal rod stroke ratio is 1.78 or so.
The LS>VTECs are like 1.54 .

[Tuintegra]

however with around that price you could probably pick up a genuine dc2r.

Got me thinking more for peace of mine, I might aswell save abit more and get a genuine one. Thanks everybody for the information

[OMG.JAI xD]

b18c7>ls/vtec frank motor.

The R block has better internals from top to bottom.
Better oiling capabilities.
Better cooling capabilities.

ls/vtec is a cheap version of trying to achieve the same power with less money.
Still a honda motor (reliable) but its like buying ebay branded parts. Its a gamble. Sometimes you get lucky. Sometimes, its just a cheap chinese imatation.

Looking at that ad.
It does look nice.
But for 15. You can get a REAL type R.

Though one thing i noticed.
The car doesnt have a sunroof. Takes a lot of work removing the roof and putting a non sunroof, roof. For all i know, all aus delivered gsi and vti-rs have sun roof. Only integra without is the dc2r or dc1 (sohc jdm integra).
Id be careful. Could be a type r with an engine that blew up. Bought an el cheapo b18a and put the head on it.

[hotdc2]

not likely.. i have a dc4 with no sunroof. 99 model.. just check the vin, that will tell you what chassis it is if you're worried about that. i highly doubt someone would chop the roof off of a dc4 or dc2 just so they could sell it as a type r.

[string]

No replacement for displacement, and an LS/VTEC has more.


Better oiling capabilities.
Better cooling capabilities.

Care to fill us in?

[GSi_PSi]

^ true dat man. an LS/VTEC built to the same specs as a B18C7 will still have more torque. and even better a B20VTEC! but im biased hehe. lol.

But yeh looking at that add im sure hes spent a lotta money converting that car to type-R specs. in the end its still not genuine and for that price just go buy a real one.