[D16A1_ALLDAY]

so far i got a EG hatch with a d16a1 (88-89)

MODS:
wiseco 11.1:1 pistons
three angle valve job
oversized ferrara valves
cold air
dc headers to 2 1/4 no cats
si tranny

just lookin for some input

 

[dustin_crxsi]

Oversized valves is a nono. Oversized valves+ high compression+ bigger cam=bad news. Wished I got to you sooner than your post. I do knot know why that is, I've been told alot of times not to do that combination.

 

[BLACK-KNIGHT]

or atleast measure the valve to piston clearance

 

[BLACK-KNIGHT]

May be a low 15 high 14? up to driver skill

 

[dustin_crxsi]

Its better for us not to assume what you'll run. Its funner to find out.

 

[dustin_crxsi]

or atleast measure the valve to piston clearance

I was wondering how to do that..

 

[The_Acid_Beaver]

With the aftermarket wiseco pistons, I doubt there will be a problem with clearance, as the valve reliefs will probably be larger.

 

[jimmyb34]

id venture to say in the low 15s probably
the model of eg hatch kind of factors in a bit as a cx is alot lighter than an si.. so which do you have?

 

[superdewey58]

yea i think like 2 or 300 pounds lighter

it really depends on ur driving skill and how often u trak the car

 

[D16A1_ALLDAY]

its not an si its an dx wit ex tranny and yea we checked all of the squish clearances its fine in that aspect but it should be in low 15 to high 14 rite

 

[CiViC_SI]

I was wondering how to do that..

i have a web site at home that shows step by step on how to clay the engine for vtec engines its got good pictures and info ill put a link to it later.

 

[CiViC_SI]

i found it through google again

http://www.c-speedracing.com/howto/claymotor/clay.php

how to measure piston to valve clearance on vtec engine or non-vtec.

 

[jlicrx]

so far i got a EG hatch with a d16a1 (88-89)

MODS:
wiseco 11.1:1 pistons
three angle valve job
oversized ferrara valves
cold air
dc headers to 2 1/4 no cats
si tranny

just lookin for some input

i didn't know wiseco made pistons for a D16A1 - are they custom made?

 

[D16A1_ALLDAY]

they arnt for the d16a1. they are for a sohc but i had da block bored out .40
over for them. they fit perfectly

 

[Green 91]

why would you swap a D16a1 into a 5th gen?

 

[jlicrx]

they arnt for the d16a1. they are for a sohc but i had da block bored out .40
over for them. they fit perfectly

are they domed pistons?

 

[BLACK-KNIGHT]

Your first 60 feet and you et will determine if you crack 14's but 15's are not that bad etheir

 

[Green 91]

D series are 75mm bore, so adny D series pistons will fit in D blocks, but compression ratios wont be the same

 

[D16A1_ALLDAY]

cause i had da 88 integra and blew the motor so i started building it then i found da eg for cheap with no motor so i chose to use dat car why wouldnt i do it. yea they arnt technically domed but they are high compression its more of a point.

 

[jlicrx]

cause i had da 88 integra and blew the motor so i started building it then i found da eg for cheap with no motor so i chose to use dat car why wouldnt i do it. yea they arnt technically domed but they are high compression its more of a point.

if they aren't domed and you have a D16A1 head which has a huge combustion chamber, your compression ratio is probably going to be somewhere less than 9:1 - the 86-87 D16A1 which had a slight dome had compression ratio of 9.1:1 - takes a pretty good dome to get 11:1 on a D16A1