Wow! I cant believe how low your numbers are with your current MODS? I would have deff figured you crossing or right at the 300 whp mark, Something's off.

 

O.P. those numbers are not off. the tvs love octane. ur not running meth correct? most people u see getting near 300 whp is with meth/e85. i would also look thru ur tune or ask for help on the forums. ur numbers are in the ball park is what im saying. not the best not the worst. but 16 degrees of timing and u were seeing knock?

maybe posting the graph and ur log file people can take a look and see if something sticks out?

as for the dip stick. ur answers lie in venting the crank case pressure. by putting breathers in either/both of these locations.


u will see one on the oil cap place and then another in the rear of the valve cover inbetrween the pcv line that leads to ur intake.

 

Not true. 300whp on just pump gas is definitely achievable.

 

If you are only seeing "near 300 whp" on E85 you are doing somethings wrong. Most people with the op's mods on E85 are seeing closer to the 320-330whp range.

 

I had 312whp/273wtq no meth or E

 

i said "its in the ball park". and" most people". do u guys concentrate on a few words of a sentence. calm down i was stating that there is room for improvement. but hes not horrible off with a number of 282. a ball busting dyno can swing a car 20 hp or so easily. if he said it dynoed 200 with his set up then i be worried something is wrong.

nizzle. ur were on 2.7 hes on a 2.9. u had brfps, and other things he did not. so all im saying is hes at a good starting point for just bolting all that on.

 

Exactly why I said don't worry about the dyno worry about your trap speed at the track

 

calm down? whos hyped up? Not me . Anyway, we're not trying to jump your **** or anything, just pointing out where you are wrong. Most people running 300whp on here are NOT using E or meth. I would say some are but not "most". However,most people putting down 350 - 400+ WHP are tho. Just sayin

 

X2 haha

 

in response to the ninja edit (i see that), tbh, I wasnt high enough HP to really need the brfpr so that wont make that huge of a difference. If had gone E or meth i prolly coulda pulled 330 - 350 whp

 

what are your redlines set too
im think my 80's and return style will be enough on e85

 

I redline at 7200 rpm. Had to shut it off there because thats all my stock valve train can handle. My car was still making power at forced shut down rpm. I could have pulled more power out of it by upgrading my valve train to allow me to run at higher rpm's.

If you are going to run E, I would suggest 100# injectors. 80's will do "ok" with E but to get full potential from running E, 100's will be better. If you dont want to get 100's then go meth instead of E

 

after seeing some logs
looks like if i go with 80's
running the base pressure at 58psi(return style)
with a fuel pump rewire i should be around 65%idc
already have meth still can decide to ditch it or go e85
e85 and meth?

 

I have heard something about running E and meth together not being good or not making a difference or something. I cant remember but there has got to be reason people arent doing it.

 

no it just doesnt make a difference but id just be using it as a second fuel source which is a band aid fix
damnit im so torn between return style and 80's or 1000's
wish my budget could fit 1000's and return style

 

Question for you. Was the dyno on its standard setting or in shootout mode? I know DB uses a Dyno dynamics dyno and it reads very low in its normal mode. Shane is an excellent tuner for most vehicles (not sure on his LSJ experience) and he is a great guy to work with. Ill be there in a month and a half with my friend when he gets his built evo tuned. Last time before the turbo crapped out on the dyno it made 334whp on 14psi on the 2.3 stroker and pte6262, which is VERY low, but in shootout mode it made 397whp which was within 8whp of what it put down on a dynojet. So thats it why I ask.

 

yeah, damn dyno dynamics...my stock pulls were 183whp 187wtq

low much? tq is about right, but hp is stupid low

 

i could not tell you what mode it was in. and as of the earlier questions, i have a catless down pipe. and i do not want to go with meth or e, the car is my daily driver it gets over 4,000 miles a month on it, i have a long drive to work. and i can not get any data logs from the car. and db performance is a 3 hour drive from where i live.

also with the breather for the oil cap it says i have to retune for it. i picked up a threaded pcv valve from orielys and a small spectra stainless filter. i was thinking of screwing the pcv into the top of the oil cap then putting the filter on the pcv. what do you guys think? i should not have to tune with this setup right?

and as far as the fuel i dont think that is an issue either as far as needing brfpr shane thought the #80's where a little overkill and the #60's would have worked a little better for it, he could not get rid of the hunting idle completely with the #80's

 

Well most cobalts rev safely to 7400... And if your making power to 7200 I'd say rev it a bit higher. The tvs loves rpms. Now as far as knock at 16* that seems a little strange. I wonder if you just have **** winter fuel in your car... When I was just gas I was running way more timing. But we have pretty good 93 around here

Also no refund for a breather

 

My car is my DD and I've been using meth for 2 years. You aren't spaying meth unless you have your foot into it so the high miles you run shouldn't matter. Just leaving meth open as an option is all.

 

that could be. i live in northern mn i know the fuel here isnt the best i run 93 bp fuel


what do you mean no refund for a breather

what do you guys think i should be around for timing?

 

shane is a great tuner and i have no dout about his abilitys. he has done alot of cars from corvettes to skylines hes done alot of lsj's but mine was the first one he has ever done with a tvs. is there anything diffrent you have to do for the tune with a tvs vs the m62? i wouldnt think so.

 

Only difference is you are limited on the timing you can run on gasoline, which he found out. Dont feel bad, on a dyno dynamics on my 2.9 I put down 326whp today with E85 and a ported head. Dropped to the 2.7 and car was pulling timing with IAT2's over 160* and it only made 2 more peak hp with 12-15 more under the curve.

 

how much of an increase will meth add do you think?

 

It will allow you to run way more timing. And the key to making power with a tvs is lots of timing and rpm