NOTENOUGHBOOST

Reason I'm asking is because tuner states I need bigger injectors to finish tuning my car. He told me I needed Precision 780cc injectors. But anyways, now that I have drove off my car feels like it is bogging real bad, and doesn't want to go over 3500 rpm's (if I push it I can get up to about 4200). When he was dyno'ing my car it seemed like it would pick up fine, then he comes up front and tells me my car has a slight bogg. Car was running perfect with FMU.

The car that is in question is my 99 Prelude

I'm kind of irratated right now, so it's had for me to think of anything else to add to the scenario. If anyone knows anything, or has any input, it would be greatly apprieciated!


Modified by littlechoppab20 at 8:48 PM 3/19/2004

PrecisionH23a

What are the injectors peak duty cycle? I highly doubt that the 550cc's are making your car bog around 3500rpm's.

It sounds to me like you need a new tuner.

NOTENOUGHBOOST

That's what I was thinking.. if anything, it would lean out around high rpms when boosting.... I'm not sure what the peak duty cycle was... He didn't even give me a print out. He just said I needed bigger injectors, that would fix the problem (slight bogg), and that he would finish tuning when I got them.

It's a real reputable tuner, but he was thing the bogg was from them... he said bogg seemed fuel related... not getting any check engine lights and it idles fine.. just when I start driving, it boggs.

PrecisionH23a

Hondata has the infamous stutter/bog around 3-3500rpms. It can be worked out by either richening the a/f ratio's or sometimes adding a little bit of timing advance. The new version of the s200 is supposed to have this gliche worked out though from my understanding. 550cc injectors are not your problem, plenty of people have run this combo before with no problems.... and since the car ran fine with the fmu at these rpm's then I am going to point the finger at the tuner or another component of the fuel system for why it is bogging.

Which fuel pump are you running? What fuel psi? Fuel filter?

NOTENOUGHBOOST

I have a Walbro 255 lph fuel pump

Factory Fuel Filter... and it hasn't been replaced since 50,000 miles now that I think about it.

Like I said, he made some dyno runs and it was no way it was bogging like that when he was tuning...


Modified by littlechoppab20 at 10:25 PM 3/19/2004

18G_prelude

I have 440cc injectors and hondata i have no problems. This is on a 97 prelude @ 7psi

-iLLuZioN-B18C1

you do not need bigger injectors. your duty cycle should be good at only 7psi.im running 550s right now and even at 13 psi 285 whp its still good. (i got hondata 2b)

i am almost certain that bog is your tuner. i had this problem, before getting my car tuned and after tuning it, my tuner told me straight out that it bogs throughtout the rpm, especially when i give it gas really hard.
tuner was able to tune this out.

NOTENOUGHBOOST

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 18G_prelude &raquo;</TD></TR><TR><TD CLASS="quote">I have 440cc injectors and hondata i have no problems. This is on a 97 prelude @ 7psi</TD></TR></TABLE>

Man that makes me upset!!!!!

After talking to more and more people, I'm starting to think he's just trying to get me to buy the larger injectors, or doesn't really know what the problems is!

NOTENOUGHBOOST

I feel like he was doing a rush job anyway... My car was supposed to be done at 12 noon, but he didn't start on it until 4:30 and was done by 5:45.

shadow103rd

Definitely go to another shop and get it tuned.........you should be totaly fine with 550's......my advice to you is get it tuned somewhere else......and if they say they come up with a bogging problem, get your fuel system checked out...

Jon

-iLLuZioN-B18C1

fuel system shouldnt be a problem. i got walbro fuel pump and thats it just like you with a hondata 2b, rc 550 injectors. its gotta be the tune, which is why your getting those bogs. are you only gettting them when you push down the gas suddenly?

just wondering, do you have your timing at 0,0?

NOTENOUGHBOOST

Yeah timing is at 0,0 but bog comes as rpms increase... once i get to 3500, it's like ecu says something isn't right and stops moving so easily.

I'm running S200b... AEM fuel rail, Aem FPR.. the only thing stock is Fuel Filter, and fuel line going to fuel rail.

ahobbs

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by littlechoppab20 &raquo;</TD></TR><TR><TD CLASS="quote">It's a real reputable tuner</TD></TR></TABLE>

Fuug him, hes not reputable. he owns a shop and has an 8.4 @ 175 MPH civic hatch sponserd by Quaker State.

THe Guy that "was" there made the shop. not that fool. He just does good articles. The Guy moved on to Bigger and better things..Real "Rad" things.

NOTENOUGHBOOST

I know one thing.... I just talked to my other friend that has a 98 prelude running 9 psi and guess what size injectors he has...... RC 550's w/ Hondata 200b..... Now I'm really like WTF!!!!!!!!!!! I'm going to go bakc up there tomorrow and demand that he at least gets my car running!

Hoodwinked

I run RC 550's on 14.5 PSI on Hondata s100b. 311 whp

steady a/f ratio across the board.

NOTENOUGHBOOST

I just finished switching injectors with my friend, and I'm still having bogg problem once I get to 3500 rpms.... Has to be tuning. Tomorrow, I plan on switch Hondata chips with a friend of my that has same setup on prelude and see what happens... The only thing that I'm trying to acomplish now, is making sure my car goes over 3500 rpm's so I know its the tuning!!!

PrecisionH23a

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by littlechoppab20 &raquo;</TD></TR><TR><TD CLASS="quote"> Tomorrow, I plan on switch Hondata chips with a friend of my that has same setup on prelude and see what happens... The only thing that I'm trying to acomplish now, is making sure my car goes over 3500 rpm's so I know its the tuning!!!</TD></TR></TABLE>

That's exactly what I was going to tell you to do. Most likely it will work fine. If there is a problem with the hondata install or is hondata related check out the forums on http://www.hondata.com and do a search for the problems you are experiencing.

tony1

550cc injectors are good to around 350whp, period, that's not the problem. I think it's ridiculous that new injectors were recommended. It's either in the tune, or in the hondata itself. If it's a hondata problem (which i doubt it is) then they will warranty it and you find out if that's it when you put in a new box. Otherwise, your "tuner" still has a bit of work to do!

ladysman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by littlechoppab20 &raquo;</TD></TR><TR><TD CLASS="quote">I just finished switching injectors with my friend, and I'm still having bogg problem once I get to 3500 rpms.... Has to be tuning. Tomorrow, I plan on switch Hondata chips with a friend of my that has same setup on prelude and see what happens... The only thing that I'm trying to acomplish now, is making sure my car goes over 3500 rpm's so I know its the tuning!!!</TD></TR></TABLE>

This stutter is fixed in version 3.5.5 of Rom Editor.

NOTENOUGHBOOST

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ladysman &raquo;</TD></TR><TR><TD CLASS="quote">

This stutter is fixed in version 3.5.5 of Rom Editor.</TD></TR></TABLE>

The only problem is that it is not a studder, it's a bogg and my car doesn't want to go past 3500 rpms, without giving it full throttle, but then my car starts going into boost and not going anywhere... Doesn't sound to safe to me!

ladysman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by littlechoppab20 &raquo;</TD></TR><TR><TD CLASS="quote">

The only problem is that it is not a studder, it's a bogg and my car doesn't want to go past 3500 rpms, without giving it full throttle, but then my car starts going into boost and not going anywhere... Doesn't sound to safe to me!</TD></TR></TABLE>

Then it is tuned like a big pile of donkey ****.

NOTENOUGHBOOST

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ladysman &raquo;</TD></TR><TR><TD CLASS="quote">

Then it is tuned like a big pile of donkey ****. </TD></TR></TABLE>

That's the conclusion I just came up with.... I just got off the phone with the shop and he is about to fit me in today and look at it again. It kind of feels like he tuned it and didn't burn program on chip... I want to bet it's the base map that was already burned on chip. They already told me before my car started getting tuned that the Rom editor was acting up.

espanol

that sucks.

ladysman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by littlechoppab20 &raquo;</TD></TR><TR><TD CLASS="quote">

That's the conclusion I just came up with.... I just got off the phone with the shop and he is about to fit me in today and look at it again. It kind of feels like he tuned it and didn't burn program on chip... I want to bet it's the base map that was already burned on chip. They already told me before my car started getting tuned that the Rom editor was acting up.</TD></TR></TABLE>

I hate to ask but have they ever tuned Hondata?

NOTENOUGHBOOST

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ladysman &raquo;</TD></TR><TR><TD CLASS="quote">

I hate to ask but have they ever tuned Hondata?</TD></TR></TABLE>

No I have never tuned hondata... why?... what's up?