curious to see what you guys think maybe someone ran into something similar an might have some answers
I have 99 hatch with a usdm gsr motor i'm an ase certified tech I did the swap my self an it's in there right my problem is my gsr won't do any better than a 16.8 in the quarter 3 different people ran the car none of us could get it to do better all 3 of us ran a eg with a b16 in it best time was a 15.1 stock motor now my gsr has ctr cams it's properly timed new plugs new wires hondata s300 ctr trans hondata set to comp for the ctr gear ratios iab hooked up to nitrous/aux1 an working properly no grindes in trans compression test on motor is between 160 an 155 on all 4cyl hondata set to run usdm gsr map i've also tried stock itr map due to the cams i've been red lineing at 8300 it's been driving us crazy i dunno what it is i'm about to toss the motor even on the freeway my friends bone stock b16 in a eg pulled harder than my 99 hatch with a gsr motor I dunno how or why

 

I know you have hondata S300, but has it been tuned or is it running on base maps? I have a 00gsr that is only pulling a 10.1 in the 1/8th because it's on base maps. Mine needs to be tuned real bad.

 

Whoa, that's slow....

 

160 is kinda low compression, it should be kicking around the 190-200 mark. Any check engine lights? Idle problems? Does it pull hard to redline? It "might" be a tuning issue, but really a stock GSR or Type R map shouldn't be that far off. I mean, it wont be great, but it wont be in the 16.8 second range either. My first suggestion is to make sure the motor is sound (check engine lights, idle issues, etc), then try to figure out whats with the compression (assuming you did it WOT on a warm engine), make sure vtec is engaging and such, then put it on a dyno and see what kinda #s its pumping out. Also what do you mean the hondata is "hondata set to comp for the ctr gear ratios"?

 

160 is way low, I just got my 99 GSR 60K on it Comp test came up 230 on all 4 cyl
Make sure you have premium fuel good oil check your plugs wires, be sure AC is off, retune and dyno I guess is only soloution unless you find something wrong.

I assume your running s300 off a GSR ecu> if not then Doh!@

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dc4g &raquo;</TD></TR><TR><TD CLASS="quote">160 is way low, I just got my 99 GSR 60K on it Comp test came up 230 on all 4 cyl
Make sure you have premium fuel good oil check your plugs wires, be sure AC is off, retune and dyno I guess is only soloution unless you find something wrong.

I assume your running s300 off a GSR ecu&gt; if not then Doh!@</TD></TR></TABLE>

Im assuming hes not running a GSR ECU since he said the IAB is hooked up to the aux. port. However, the honda ECUs are officially hacked and with a chip they are pretty much all interchangeable. Note, he can run a stock GSR map on a chipped P28 and its the same as a GSR ECU......and yet you'd think that daughter board would do something.....

 

i'm running s300 off of a p30 that's why the iab is hooked up to the nitrous/aux controll the info we have at my shop says 160 is coo but from what u guys are saying that sounds like my problem i have a perfect idle an no check engine lights of any kind an what i ment by setting the s300 to comp for the gear ratios of the ctr trans is exactly that I'm running a gsr map an hand the s300 comp for a ctr trans

 

Just giving an idea, but maybe you unknowingly have low-compression pistons (bought them with the block)? Did they look stock? I was thinking too, that the compression should be around 200ish.

 

maybe i dunno i bought it as a swap through my shop we got it from cali

 

But there is no compensation for different transmissions.....engine output doesnt change with different gearing. Sure torque and rpms that the tires turn does,.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95 integra &raquo;</TD></TR><TR><TD CLASS="quote">But there is no compensation for different transmissions.....engine output doesnt change with different gearing. Sure torque and rpms that the tires turn does,.</TD></TR></TABLE>

Yea I noticed that too but didn't say anything. Was the car tuned on a dyno, or just "tuned"?

 

the s300 has a transmission tab u select the transmission you have i understand what you guys are saying but fyi

 

it has a base tune didn't spend alot of time on the dyno just wanted to make sure it's not running lean

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NocsCtr &raquo;</TD></TR><TR><TD CLASS="quote">it has a base tune didn't spend alot of time on the dyno just wanted to make sure it's not running lean</TD></TR></TABLE>

BTW, I didnt realize the S300 has the gear comp. Great little feature, but its really not going to change from a stock trans to a CTR. Either way, what hp did it put down on the dyno? That will clear this up real quick.

 

he managed to get close to 180 at the wheels that's why this whole thing is driving all of us mad i'm not saying i'm pro status but i'm a decent driver an there were 3 of us that ran the car somethings not right but we just can't find it the car pulls all the way to red line it's the oddest thing ever an on the freeway too a stock b16 in a eg that my friend owns pulled on me I was like wtf we were going 80 dropped to 3rd an ran it till 100 an by 100 he had me by half a car

 

180whp is solid, meaning its not an engine/ecu/tuning issue. That really rules out something binding the drivetrain as well.....which only leaves us with weight and driver. Is there an extra 1000lbs of dirt/steel in the rear of your hatch?

 

i wish that would make all of this make sense my hatch is full interior but still a 16.8 the car does put out decent numbers i been thinking about selling this swap an going with a k series but i been working on the b-series since i was 16 dunno if i can make the change i pick these b-series up for pretty cheap but this is the first time i've ever ran into something like this we have gone over the whole car from bumper to bumper nothing stands out we have even data logged the run to show to the guy that did the base tune he says it's norm that's why this is driving us crazy it's gotta be one of those 1 in a mil things i dunno i just can't sell this motor till i figure it out though

 

16.8 @ what mph? mph does tell alot. what was your 60' also?

 

off hand i only remember mine i don't remember the other guys i remember i hit 88 or 89 at the end of the quarter an I forget the 60 time i almost want to say it's the trans the gears are really short an what i've heard from other shops an people the gearing in my trans doesn't sound right but the casting number is that of a ctr trans

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gsrious &raquo;</TD></TR><TR><TD CLASS="quote">16.8 @ what mph? mph does tell alot. what was your 60' also?</TD></TR></TABLE>

MPH is an indication of HP. When I was bone stock in my GSR (with a blown headgasket) my slowest was 16.1 @ 86.x mph. That night I later went 15.7 @87.x mph. 60' times were 2.4-2.5.

That MPH is lower than what it should be for a stock GSR, thus I know my engine is hurt and that HP is down.

 

i'm thinking it your compession that holding you back... last time, i was racing my buddie on the high way with my stock ls swap EG against his I/E/H gsr swap EG w/ ls tranny. i took him like three car lane. his compression was only at 155psi. maybe that what holding you back... but what i dont get is how could you make 180 whp and only run 16.8 1/4 mile unless that motor was in a CRV... haha... welp good luck...

 

hey do u know much about timing if u do u can set it at the cams and move ur crank shaft one tooth forward or one back and that will make a big diff. in hp and revs. but u have to know what ur doin if ur going to do this or ur pritty much screwed

 

180whp and still trappig 88/89 is kind of off.

^^thats why i asked.

my 148whp(dynojet dyno) gsr traps 89 mph in the 1/4 on street tires(all seasons) @ 35 psi.

if you are making the power you stated that you managed(180)... you should at least be trapping a lil higher.

 

the car takes off really slow i think its due to the iab i'm researching a way to controll the iab with my s300 i have a really slow 60ft time cause the car picks up slow once u get it over 6k it pulls hard before 6k its the slowest car ever

 

an when u rev it up 2 8500 it pulls all the way but when u shift it drops low I know alot of it is the driver but i've got a decent amont of experience I know a fair amount about timing but never heard of what u were talking abot could u go into more detail