Hey, I know this is a to much of an open ended question but.. I just boosted my 98 honda prelude. I know all about the sleeve probs and ringland probs it has when under boost. I have a t04e Turbo running 7psi boost, 450cc injectors, SAFC2, 255lph fuel pump, and a 2 degree ignition retard. I didnt get the sleeves done im planning on doing sleeves rods pistons this coming winter. With your experiences do you think i will make it threw the summer? Thanks. and sorry for the STUPID QUESTION

 

If you actually tune the motor it should be fine for a very long time boosting 7psi given that you do the required turbo maintanance to the motor. Also, I don't know if retarding it 2 deg is such a great idea. It's only 7psi.... Take it to the dyno and then mess with your timing and fuel settings.

 

Do you think it's possible to get away with stock timing on 7 lbs? I wonder how much power is lost by retarding 2 degrees...

 

What exactly do you mean you are pulling 2 degrees of timing, i.e. what are you using to do that? I would suggest at least .6 deg/psi on a stock bottom end, more if you are using the afc hack.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by homesauce &raquo;</TD></TR><TR><TD CLASS="quote">Do you think it's possible to get away with stock timing on 7 lbs? I wonder how much power is lost by retarding 2 degrees...</TD></TR></TABLE>
You will get detonation in the mid range with stock timing at 7 psi.

 

so i got two different answers about timing retard. I am getting it dynod but its in the end of april. So should i retard the ignition. Thats the only thing that i havnt done. because some people say to some people say not. 7psi is not alot im just wondering from people with experience

 

A good rule of thumb is to retard your timing .75 degrees per psi of boost. Basically what I am telling you to do is to take your car to have tuned THEN mess with your timing. I ran stock timing on my h23a with 8psi untuned (that was before I knew about tuning and what not) and i had zero problems. I would not do this over again knowing what I know today.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sharkcohen &raquo;</TD></TR><TR><TD CLASS="quote">What exactly do you mean you are pulling 2 degrees of timing, i.e. what are you using to do that?</TD></TR></TABLE>
^^^Inquiring minds want to know.

I know I said .6 deg/psi, but I would agree with Anthony and err on the side of caution, go with at least .75 deg/psi, and again more if you are using the afc hack (the afc hack causes timing advance during boost).

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sharkcohen &raquo;</TD></TR><TR><TD CLASS="quote">
^^^Inquiring minds want to know.
</TD></TR></TABLE>

I'm interested also, since you can't back it off by turning the distributor...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sharkcohen &raquo;</TD></TR><TR><TD CLASS="quote">
(the afc hack causes timing advance during boost).</TD></TR></TABLE>

Does it? I didn't know that!

 

so i should really think about getting a MSD because thats the only thing that retards it enough before the computer tries to put it back to stock. SHIYITT! another few hundred bucks!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EdgeminSH &raquo;</TD></TR><TR><TD CLASS="quote">Hey, I know this is a to much of an open ended question but.. I just boosted my 98 honda prelude. I know all about the sleeve probs and ringland probs it has when under boost. I have a t04e Turbo running 7psi boost, 450cc injectors, SAFC2, 255lph fuel pump, and a 2 degree ignition retard. I didnt get the sleeves done im planning on doing sleeves rods pistons this coming winter. With your experiences do you think i will make it threw the summer? Thanks. and sorry for the STUPID QUESTION</TD></TR></TABLE>

i had the same setup. minus the fuel pump. made 257whp at 6.5 psi and timing retarded 5 degrees via msd digi6+.

 

hey try to not get on it too hard until you hit the dyno. i know its hard not to, but try to fight the temptation. the only way to set up the car correct is to dyno tune it.

http://www.cardomain.com/id/boostlee

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EdgeminSH &raquo;</TD></TR><TR><TD CLASS="quote">so i should really think about getting a MSD because thats the only thing that retards it enough before the computer tries to put it back to stock. SHIYITT! another few hundred bucks!</TD></TR></TABLE>
Yes, if you don't have something to retard timing, you should get a device such as an MSD BTM, something that will let you dial in a certain amount of retard per pound of boost. You cannot change your timing at the distributor on a 5th gen, the timing is controlled by the ecu.

 

do you already have some kind of aftermarket igntion? if so leave it and get a hondat or simlar tuning device. much better tuning. it will last longer and make more power

 

What MSD should i get? i seen a MSD made for boost but it was expensive. Will just the regular MSD work?

 

The MSD 6BTM is the cheapest MSD ignition that includes the boost retard function. Just suck it up and buy it.

They actually go for much cheaper in the Classifieds and on ebay.

 

cool thanks for the help everyone.

 

how much is the btm? you can get hondata s100 w/boost for under 400. then you can sell your vafc.