frankenstein

[swrkingpin]

just wondering what people have heard about the Frankenstein build. I haven't heard much but was told its pretty quick.

[JDM_CB7_TX]

Think you are talking about a G23 motor.

[evil_demon_01]

just wondering what people have heard about the Frankenstein build. I haven't heard much but was told its pretty quick.

I saw it on TV, it moved slow as hell, and walked like a robot.


Oh, unless your talking about 2 separate Honda engine's that comprise of a F-series block with a H-series head mated to it?

Now would that be a F18, F20, F22, F23, And Dohc or Sohc block?
Mated to a H22, H23 Vtec or Non Vtec head?

[swrkingpin]

evildemon, your on to what i'm talking about. well not the tv part. haha. my buddy told me they used the f22 block and use k20 pistons or something like that. not really sure the specifics. he said they called it a frankenstein cuz it was a bunch of different motors combined pretty much.

[JDM_CB7_TX]

This is correct. It is an F-series Block with forged pistons I believe(K20 etc.), and an H series Head. I believe alot of ppl are wiery of doing this as it is not know as being a very reliable motor.

I know Lowdollar(member here) has a G23 Boosted and has been for quite some time. He may chime in and lend some knowledge on this subject.

Here are a few threads that can shed some light on what you are wanting to know....

G23/G22 Thread

Lodollars Member Ride Thread

[deevergote]

There is no singular "frankenstein build". That just means you're mixing engines (usually the head and the block.) And no, it is not a fucking "G series"... The G series exists, and it's a 5 cylinder engine found in the Inspire/Vigor/2.5TL.


If you've never assembled a motor, don't try it... unless you're willing to blow up a few times as you learn your way around. There's really no benefit to mixing H/F/K motors aside from a VERY small savings (IF you're able to get cheap parts and free labor.) You could build a performance motor properly out of a complete H, F, or K series and make a much more reliable engine. If you plan things out correctly, that properly built motor won't cost much more than an frank.

This has been covered extensively... and every time I want to bash my head against the wall because people ask a million questions without doing any research, or understanding how to build a motor. By the time we get 5 pages in, with all the info they could ever need, they realize it's too much work and say "I'll just buy an H22".
Do your research, kid. You'll get much more help on here if you can start threads with more than "my buddy said this."

[cb7resurrector]

the only positive ive seen come out of these motors is the fact that there good under boost. h blocks are pretty fragile under boost because of the frm liners. thanks to the f22 block tho you get iron sleeves with dohc tune-ability and possibly vtec if your using an h22 head. again everyone haults at the reliability issue but if there wasnt a reliability issue then it wouldnt be a frankenstien.

(a friend of mine is running a frank motor. f22/3 block. cant remember which. k20 pistons. h22 head. balance shaft belt delete. and hasnt had any major problems so far. )

[deevergote]

FRM is stronger, lighter, and better at dissipating heat than the stock F22A iron liners.

[cb7resurrector]

FRM is stronger, lighter, and better at dissipating heat than the stock F22A iron liners.

yes i agree with you on this. for all motor purposes frm liners are amazing. but a healthy stock h22 + boost.... frm liners are the known weak points.

[deevergote]

Stock iron sleeves aren't very strong either.

The reason why everyone assumes FRM is bad is because traditional forged pistons are not compatible with them. "I can't run any piston I want" evolved into "those liners are weak, and bad for boost".
The F20C and F22C have both been known to hold massive amounts of power with turbo on their FRM sleeves, even with stock internals.

[cb7resurrector]

i stand corrected.

[swrkingpin]

There is no singular "frankenstein build". That just means you're mixing engines (usually the head and the block.) And no, it is not a fucking "G series"... The G series exists, and it's a 5 cylinder engine found in the Inspire/Vigor/2.5TL.


If you've never assembled a motor, don't try it... unless you're willing to blow up a few times as you learn your way around. There's really no benefit to mixing H/F/K motors aside from a VERY small savings (IF you're able to get cheap parts and free labor.) You could build a performance motor properly out of a complete H, F, or K series and make a much more reliable engine. If you plan things out correctly, that properly built motor won't cost much more than an frank.

This has been covered extensively... and every time I want to bash my head against the wall because people ask a million questions without doing any research, or understanding how to build a motor. By the time we get 5 pages in, with all the info they could ever need, they realize it's too much work and say "I'll just buy an H22".
Do your research, kid. You'll get much more help on here if you can start threads with more than "my buddy said this."

i wasn't planning on doing the build i just wanted to know whats been said about it. i would do research but all i had heard was frankenstein. i wanted to know a little more about it so i could research it. and i thought thats why these are the beginner forums but guess not.

[HappyGilmore]

There is no singular "frankenstein build". That just means you're mixing engines (usually the head and the block.) And no, it is not a fucking "G series"... The G series exists, and it's a 5 cylinder engine found in the Inspire/Vigor/2.5TL.


If you've never assembled a motor, don't try it... unless you're willing to blow up a few times as you learn your way around. There's really no benefit to mixing H/F/K motors aside from a VERY small savings (IF you're able to get cheap parts and free labor.) You could build a performance motor properly out of a complete H, F, or K series and make a much more reliable engine. If you plan things out correctly, that properly built motor won't cost much more than an frank.

This has been covered extensively... and every time I want to bash my head against the wall because people ask a million questions without doing any research, or understanding how to build a motor. By the time we get 5 pages in, with all the info they could ever need, they realize it's too much work and say "I'll just buy an H22".
Do your research, kid. You'll get much more help on here if you can start threads with more than "my buddy said this."

I wait for this when people post about frank engines ...


To the OP:
I highly suggest reading a little bit about what you are looking for or wanting to know about. It does help when you have a little bit of background to what it is your are looking for. Just a bit of advice. Hope it helps...

[evil_demon_01]

i wasn't planning on doing the build i just wanted to know whats been said about it. i would do research but all i had heard was frankenstein. i wanted to know a little more about it so i could research it. and i thought thats why these are the beginner forums but guess not.

Beginner forum - Yes
Making it sound like you have some understanding of what your talking about - Yes
Legitimate and logical replies to your question - Yes


Assuming that you know nothing, and assuming that you are could actually be referring to something like a RB26DET Frankenstein build for a Honda CB7 - No

[deevergote]

Did you attempt to search this site for the only term you knew? Believe it or not, a search for "frankenstein" would pull up about 7 years worth of relevant threads.
So you have no intention of doing it, but you want us to take our time and tell you evey little detail anyway? That's one of the reasons we all get so irritated with questions like this. The guys that have learned for themselves how to do it take all their time to help someone that knows nothing, only to hear "oh, that sounds too hard. thanks anyway!"

Yes, this is the Beginner Forum. Yes, this is the place to ask beginner questions. However, that doesn't mean people want to spoon-feed you information when you're too lazy to look for it yourself. I'm quite certain that this reply has taken me longer to type than you spent searching.
Not to mention, the thread you posted at nearly the same time as this was pretty much asking "what engines can I swap in my car?" and it already got locked. It looks to me like you're just trying to whore your way to 30 posts.