D15b Dual carb upgrade options?

[Horny_Devil]

This bites. i dont give two fucks what anybodys opinion is about this swap all i wanted to do is get in contact with somebody who has had experience with jap spec d-series

ur talking with him, theres probably one other that would be able to help u but hed just give u exactally the same info as im giving u

Jase/Horny_Devil is about the biggest D serries authority you'll come across. You say you want info on the D, then listen to him eh

correct ive been working/researching these motors for about 5 years now.

ur not gonna get anything thats going to give u what, with what u have, simple as that.

u either get 10.2:1 with the carbie block and vtec head, or u get or u get 8:1 or less. the problem u have is u want low compression, getting high compression is easy with these motors, getting low is another story with out having to go for aftermarket pistons

can u please tell me what ur trying to do, D15 block with Vtec head and a carbie setup along with a turbo?

im not telling u to get rid of the D series im telling u to ditch the carbie setup and the carbit block and run either a D15B vtec block or a D16 block which will give u 9-9.5:1 compression with will be perfectly fine for a turbo setup.

im all keen to give u information but maybe u need to actually listen to the advice/information that people give u, instead of going off like u have

[Trivium]

Sadly Jase I don't think he'll listen, much like the other few guys to come on here wanting carbie turbo with their head up their arse

[Horny_Devil]

darren i understand where ur coming from with you comment. but in this thread theyre not helping the situation at all so unless u have answers to his questions it might be time for u to sit on the bench.

not trying to be a dick or anything but theyre not really helping much

[GIVIT8]

Its just frustrating mate, sorry. if you had read it correctly your attitude may have been different towards me and id be getting somewhere huh? so where does it state that im keeping carbs? i said a few posts ago that im going efi... i said ive now got a sohc vtec head and intake manifold and loom etc from a domani to use

wtf would i run a vtec head and carbies? and a turbo? whak

if the comp ratio is going to be a problem i may as well just use the intake manifold ive got and keep the non-vtec head in place to retain stock compression, would that be a better way of doing it?

So, keep the d15b stock as far as the head goes, install the intake manifold and loom, install/modify dizzy from vtec head, run new fuel lines and get a tank and pump from an efi eg, does this sound like it will work?

[GIVIT8]

*from the other day*

update! got sum new parts

domani p08-6 head and intake manifold p08-HF4, 58mm throttle body?
and p70 ecu and loom from the same car.

any good??

[Horny_Devil]

Originally Posted by GIVIT8

Its just frustrating mate, sorry. if you had read it correctly your attitude may have been different towards me and id be getting somewhere huh? so where does it state that im keeping carbs? i said a few posts ago that im going efi... i said ive now got a sohc vtec head and intake manifold and loom etc from a domani to use

wtf would i run a vtec head and carbies? and a turbo? whak

if the comp ratio is going to be a problem i may as well just use the intake manifold ive got and keep the non-vtec head in place to retain stock compression, would that be a better way of doing it?

So, keep the d15b stock as far as the head goes, install the intake manifold and loom, install/modify dizzy from vtec head, run new fuel lines and get a tank and pump from an efi eg, does this sound like it will work?

whats the title of ur thread?

y would u do what ur trying to do its essentually the same thing as running carbs.

what u want is the whole D15B vtec motor, ull make a bit more power when u turbo it. but if u really dont want to change the block just use the whole carbied head and block and use the other intake, i believe they bolt up, i cant quiet remember as most people use Vtec heads.

if u use the non vtec head ull need to use the non vtec dizy as they are different

define good? for what ur trying to do they are no good with out the vtec block and i have no idea how u plan on tuning it

[Ped Rac3r]

Heres a compression calculator, have a play.

http://www.zealautowerks.com/dseries.html


The standard D16A6/SOHC ZC will give you the compression you need for a turbo setup. Like Jase said, you cant really get a good combo that will give you the compression you need with that head (some of the pistons in there will with the right HG, but most of those pistons arent readily available and will be hard to come across).

Your better off going with a D16 block and head and using PM6 pistons with the parts you already have for your turbo setup, and really you should go with a descent tune, especially on a standard internal setup if you want it to last.

[Horny_Devil]

i have some P28 Pistons lying round if u want them, they have the biggest dome of the 1600cc pistons so will give u the lowest compression

[Gudgen]

http://www.supercharger.com/Shop/Vie...eIndexID=33370

[GIVIT8]

Shit those Dyno sheets look impressive. hmmmm got coin??

[Gudgen]

you can get one for 2600us. cheaper than a turbo set up of the same quality.