So I recently took my flex to local the dyno. Its a dynojet. I wasn't getting the typical results others are seeing as far as 1/4 mile times go so wanted to see the health of my motor. I mean it feels strong and pulls hard but it just wasnt translating into the numbers I would've liked. Im FBO running E30, so PPE catted DPs, GH IC, 3 bar map, colder plugs, and XDI-35. I thought i would've easily surpassed 400 especially being on a dynojet but it was right on the money. Basically made 400 at the wheels and 460 torque. Temps were in the upper 80's so not the best. OAR was also perfect at -.96. Is this ok or am i not making the power I should be? BTW I also have GH and AJP's E30 tune ironed out so ran em both. They were both basically within a 5 hp and 10 ft/lbs torque difference. Main difference was GH's toque came in much earlier vs Brad's but the end numbers were almost identical. Looking to hear back from others who've been on the dyno and what they've seen with their setups
Am i making adequeate power for bring FBO E30?
- Thread starter thenewguy
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
The dyno should have already accounted for DA correction. I figured on a dyno jet you would have been a bit more on the HP. Torque seems about right. The next step is the GH turbos...... the pull on the big end is impressive.
What should HP be around with this setup?
yes so definitely making less than what I should unfortunately
Zpak
Es Aich Oh!
“M” with the set up in my signature pulled a 411/546. AJP e30
I think you’re there on HP but the torque does seem a bit low.
I think you’re there on HP but the torque does seem a bit low.
546 torque!!!!! HOW!!!! dang man, wont mind that at all lol, got your graph? Only thing I see you have that would give you an edge over me are the coils but even those are debatable.
Zpak
Es Aich Oh!
You can see the all the details in SM105K’s ownership/maintenance/performance thread.
Not bad man but was this pull done during and earthquake? Holy mother of peaks and valleys
its just how the set the smoothness on the graph. or it this case lack of it. This is LMS with meth only for cooling the first one. The second is AJP all on the same items. and the 3rd is AJP with the GH Turbos added
Attachments
We're pretty much the same numbers wise, don't know how @Zpak motor found 80 more ft/lbs on the same tune lol
SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
I would not try to compare your E30 tune with the tune in his car. They are the same in name only. There are years and over 15 tune revisions just for that tune over the course of mine and Brad's tuning relationship. I specifically told him I wanted a max effort tune. I can confidently say, I personally still don't believe it is a TRUE max effort tune. I believe Brad could still get more aggressive with the timing (esp with a combo of 93 octane and E85 that Zpak has in his state). I also had Brad adjust the shift points down to 5800 rpm. There is zero need to spin the motor up if it isn't making power.
Also, it has a full custom exhaust that runs through stock mufflers. If you look at the graph the car actually made more TQ than 546 ft lbs. The dyno operator actually started the data late during the pull. The car probably makes in the 565 lb area.
I would look at boost taper in your FLEX. If know how to read the datalogs it would show some insight. Also the GH IC can be too much for a pair of stock turbos. It is literally too large for the turbos to stay in higher boost ranges in the high RPM. I would look at your wastegate percentage to see.
kryptto
The Best Thing About Cars... ones in my mirror.
^^^^^^^^^^^^^^^^^^^GOSPEL^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Trust me, not shortage of revisions here as well, heck i went through 13 or so myself with Brad. I agree, not all tunes are the same and no 2 cars are the same, lots of different variables but when its just so far different, you start wondering, is there something with my tune, my car, etc...I did send my log to him so lets see what he says. Heres my dyno runs with Matt and Brad. As for the boost taper, youre right, i was developing it and he tried to remedy it. Heres what he told me when I did a log for him and just wasn't seeing the numbers I was looking for:
"Here is a tune to load. It may just help a little. The biggest thing I see now that we have turned up the turbos a bit is the boost taper at high RPM. When you look at 3rd gear and above I see the boost taper starting at 5200rpm. That is normal in 1st and 2nd gear gear but at 3rd it should stabilize a bit. You are dropping to below 14 psi. This tune will get the wastegate duty cycle up quicker to try to stave that off but usually it doesn't matter. The wastegate is already rising pretty fast from the boost controller and the boost still falls. So I can run 100% and it usually just helps a bit. And it's the high rpm boost that makes power.
So although you are making good power you are making less than you could. This is just what happens on the stockers. Also you were hitting the throttle limiter on teh 2-3 shift. Not bad but this will help that also."
So yes, im definitely getting some up top but i guess it is what it is
Attachments
Zpak
Es Aich Oh!
It’s without a doubt built to complement his turbos.
That being said, on my previous SHO it would cool my IAT2 to below ambient by the end of a quarter where before I was losing timing from high IAT2’s. Rob one to pay the other.
That being said, on my previous SHO it would cool my IAT2 to below ambient by the end of a quarter where before I was losing timing from high IAT2’s. Rob one to pay the other.
SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
I would venture to say that if you upgraded your turbos all these problems would go away. I didnt want to upgrade my turbos at the time. So I went back to a stock IC and my car went to back to making more power and more boost. It was also more of a remedy that was my boost taper wasn't nearly as bad. One thing I noticed over the years, E30 cars are not as sensitive to temp like a regular fuel car is. That is why you see bigger gains with a GH IC on 93/91 fuel.
kryptto
The Best Thing About Cars... ones in my mirror.
why I am installing mine finally
SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
Yep M made more power with a stock IC and E30 in 90 degree heat, than she did with a GH IC and E30 in 60 degree weather. Only change was the stock IC was able to help the stock turbos make more boost earlier and across the whole rpm range because it was more restrictive creating more velocity.
Agreed, on his 93 tune, he was definitely seeing temps dropping over a run but i guess, thats the same you play of trying to make all the parts working together and if one is working harder than the next, it kinda throws the whole balance off. I have no intentions of doing turbos at this point either, i think i have it where i wanted it to be, making more power or going faster at this point would require a lot more $$$ than I'm willing to put in. Now that you've mentioned this about the GH IC, Im wondering if I should just put the stock IC back....lol. I run his 93 tune in the winter but in the winters, you already have cooling so dont really need a bigger IC. How much of a difference did you see going from GH IC to stock IC on e30 stock turbos?
Similar threads
