basically the title nailed it. i am attaching a screenshot of the datalog from the best pass to date. i keep breaking gsr 4th gears they are new frm the dealer and heat treated, and not. broke 3 total.
1-2 shift is 10.5k to 7.5k ~
2-3 shift is 10.7k to 7.5k~
3-4 shift is 11k to 7.7k~
but here is the issue, with all b16 1-2-3 and gsr 4th, the car doesnt really accelerate through 4th gear. its making power. it pulls on the dyno. but from 7.7k to the trap its only getting to 9.3k~

best trap to date is 147.9

i have no problem reving this enging out, i just dont want to carv open the case and put a gear in that will have an adverse effect.

looking at the gear calcs, i am pretty sure i am making a step in the right direction.

thanks for the help.

trouble viewing attatchment, pm me ill email you the cal and log.

 

wow.....by now someone would have said you are an idiot or gsr ftw or something hahaa. SLACKErS!!! HAHAA....

 

This might be a good time to consider aftermarket gears as well..

 

Consideration is easy, finding the cash is another thing....

Mikey, if your making more power or the same power at 10k+ then you are at 9500 then I would think the B16 4th would help, if not I think your just spinning the motor higher for no reason.... just my .02

No way of knowing for sure without trying I guess.

 

I take it this is still 4.400 FD and 24.5" slicks?

 

it is a stock b16 trans with a gsr 4th.
and yeah locash, right now with a newborn, aftmkt gear set is out of the question.

if you look at the vids ben, the car moves through 1-2-3 gears. and just falls dead in 4th, i mean it accelerates, but not like in 1-2-3. hahaa....my car has always seemed to be the exception to the rule, why stop now hahaa.

 

Hey, I know all about newborns, I have a one month old here!

The B16 4th might help, but be prepared for the higher revs on the motor..

 

well goin through the tranny calc, on 24.5's revving to 10k you can do nearly 150 in 4th (b16 4th gear 1.107). with the gsr gear(1.034 4th gear) you can do 160mph.

 

He seems to possibly be willing to rev it to whatever though, and since he shifts at 11,000 into 4th, you can tack on a few more mph for the extra 1,000 rpm.

Post up a dyno graph if you have one at a similar power level. I'd just like to see your exact powerband in the 8-10k region, like previously mentioned.

 

wondering if the car is making power up to 10k?

 

From my past experience I've seen a used gear outlast a brand new gear 20x ,I think from a used gear all the hot-cold normal driving conditions acts like a heat treatment , I would personally look for a used gsr gear set and go from there . Or if u really want to use a b16 gear use a 4.2 ls final those are pretty cheap to get , u will be cutting it kind of close with a full b16 gear set up . Good luck

 

this is the chart when the car was originally tuned with the exhaust on, it has since been removed.

just looking at the log, it pulls through the 1-2-3 gears, and just doesnt pull through 4th. or am i looking at this wrong? even if it isnt making power that high, hitting 4th at 7.7k like all the others, is it possible it is just too steep, and the little t3t67 doesnt like that 4th?

my car has always been weird. im not stressing over reving the engine. it is just weird.

 

for what it is worth, when i had my 84mm b16, i had all b16 gears.

 

So, I keep forgetting to ask the obvious question, whats going to prevent you from just breaking the b16 4th gear too? At a cost of a few hundred bucks everytime you break a 4th gear set, how long until you could have saved up a bit more and tried the Mfactory 3rd and 4th? Or save up a LOT more and go for the baller stuff..

Sorry, just trying to state the obvious.. If it helps at all, I probably have a few good OEM used 4th gear sets I could sell you cheap..

 

if i had an answer for that it adress that hahaa....the gsr's were over the course of 2 years. i have the 160 every 6-7 months to fix. garry eng hooked me up with this used b16 4th cheap. thanks garry.

if i could do the mf 3/4 i would i havent priced it out in a while.

i dont know if the trans likes the gsr gear or not. that trans is 10 years old and never broke any gears. til the gsr 4th. so i guess im trying to solve one issue but still trying to didge the other. i dont know.

i do know i need something to keep from breaking but it isnt in the cards right now.

i do appreciate the replies.

 

although if you have a very used good b16 4th i may take it. pm me. thanks man.