i have an all motor b18c:

13:1 compression
toda valve springs and retainers
spoon cams
and jg built

... but, its not fast enough.

i want to turbo the motor but how do i go about it?
change the compression... but is that it? is it worth it? the motor only has 60k on it, so it is fairly new. any help or advice would be appreciated.

 

go here and search and read.


homemadeturbo.com


but i can tell u right now at 13.1 c/r thats WAY to high

 

ty much.. ill go there and see whats up... is there anything else besides the compression that i have to change? jg built the motor for a friend who then gave it to me. im not familiar with what jg did, but i know ppl up in the honda-tech would know. should i just turbo a new motor or save money and change a few things on the fully built?

 

Which spoon cams are you currently using?

 

well i know most of the stuff spoon/mugen makes are mostly for road racing.what jg bock do u have?post up some pics!well u would have to change out the pistons for lower compersion ones,while doing thats not sure if jg puts them in there already but i would pick up a set of eagle H beams rods,some head studs,a good cosmetic head gasket,im sure the block had good sleeves in it being its from jg.u can use your stock itr crank,i would seel the spoon cams in favor of a good set of turbo cams.

fyi jg makes some sick **** for racing blocks!!!

 

thanks for the info...

ill ask my friend who gave me the motor exactly what was done to it, what jg block it is, and which spoon cams it has. ill also post up some pics, but i dont think theyll do any good. the motor looks like a regular old motor but with a jg stamp on it.. plus the motor is in my car, and pics wont be able to show the internals.

 

bump... sorry laggin

 

With a high static compression, lower grade fuels (91-93oct) will detonate with very little boost. IT IS possible to boost that engine, but you'll need a higher octane fuel such as E85, 110 , or C16. The only cost-effective option is E85.

 

i just discovered that my head is ported for an all motor.. how would it run if i lowered compression and turboed it?


Modified by brainglow at 6:08 PM 1/7/2008

 

excellent! more air you can move in, efficiently burn, and exhale the more power you can make

 

damn, i love that answer quicksilver... but a friend who is a motor installer and tuner (in other words, he knows what he is doing) says that a port job for an all motor will make a turbo set up run bad. i need some more advice and back up reasons.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brainglow &raquo;</TD></TR><TR><TD CLASS="quote">damn, i love that answer quicksilver... but a friend who is a motor installer and tuner (in other words, he knows what he is doing) says that a port job for an all motor will make a turbo set up run bad. i need some more advice and back up reasons.</TD></TR></TABLE>

you need a new friend,
on the contrary it would work better in a boosted application, the cams may not work so well but i would say lower the compression and then try it out should make good power

 

although he is a good friend who is but one of the few who build motors here in vegas, i had doubts about what he said as well. but instead of getting a new friend, imma pink slip his evo .




Modified by brainglow at 11:00 AM 1/9/2008

 

i think its amazing that you have a 13:1 CR motor with 60k on it....

 

i dont take it out much, and plus i live in vegas... you could drive across the entire city in 30 minutes.

 

60,000 miles and you dont take it out much?
how long has it been in there?

 

is 60k alot? i didnt think so... i had a b16 in my db8 for almost 2 yrs (them broke *** years) and the built b18c kicked it in the garage for that time. now, ive been drivin the b18c (untuned... shame on me) for almost a year now...

i raced it only once and after that i never did it again... i was racing an evo and he had me beat by about a foot, but he never pulled away (surprisingly)... afterwards, i was driving home and, out of the blue, my car shut off... after that, i vowed to never race it again before i had it tuned.

but, i follow a friend's advice of putting it into vtec about once every two weeks to release the carbon deposits. the car runs fine, and i never ran into any motor problems again.

for the moment, i am gathering info on how i can turbo the motor.. sorry for the life story...its very boring here at work and ive already watched the entire season 5 of family guy with 3 more hrs of sitting here to go.

 

dennis, of LDL motorsports here in vegas, and the only guy who tunes hondas in this stank *** town, said that a head ported for an all motor will run fine on a turbo setup... im taking his word for it.

 

are the pistons forged. i know alot people will say its bad but inline pro sells 3mm head gaskets to bring compression down for turbo's. that should get you into a more acceptable window for some boost.
if you got real lumpy cams trade them for some type r's there work great for boost

 

yes, the pistons are forged. the head gaskets are a good idea, but its probably a better idea to sell mine and buy some low compression pistons. ill look into those type r's too.. thanks for the info.