Boomba's IM and TB Spacer Dyno Results Posted

[rodmoe]

So Ian are you using the PERON intake also ??

 

[ian.j]

Peron intake?

 

[rodmoe]

Peron intake?

The bigger of the two aluminum tubes or pipes in the above pic of the Peron Kit I got.
Did you get the long large aluminum pipe that goes from the turbo intake to the start of the tube that some replace with a silicone intake tube ? Or maybe best described as the part of the intake between the engine and firewall .

Poor pic I am on my phone so if it's not understandable I'll fix later tonight from home.

 

[ian.j]

ahh yes I am, the one that runs across the top back of the engine down to the turbo. also came with the hotside pipe to the intercooler.

 

[rodmoe]

ahh yes I am, the one that runs across the top back of the engine down to the turbo. also came with the hotside pipe to the intercooler.

Correct .. I'm hoping these show greater gain with a bigger turbo too as well as leaving the option for WMI if so desired.

 

[BoostBumps]

I have torque on android but use it for track recorder mostly. The AEM system is easy to set up got it starting at 5psi ramping to full at 20psi so that when boost drops down at high rpm the meth is still full flow. I am just on the smallest jet (250cc) as the next size up made no improvement so why waste methanol. next experiment is tuning it on the rollers for straight methanol so I can switch maps for daily or track

Actual boost is 1.6bar not what this was reading

But great work Ian and nice numbers there!

Interesting to see how this larger turbo is able to produce and sustain moderate boost levels along with what I assume would be far less compressor heat produced to achieve those numbers...Appears to be a very "efficient" setup....This is really nice to see this and thanks for posting!

btw...I'm curious as to what's going on @ ~5.75k rpm? Fueling? Or just further tuning tweaks required?

[HR][/HR]
And my apologies for continuing off-topic here...back to Boomba Spacer discussion!

 

[rodmoe]

Ok my bad back on track for Boomba spacers that will help give a bigger fatter longer lasting Tq curve .. Lol

 

[FerdFiesty]

You have to understand how a small displacement turbo car works and how that is represented on a dyno graph. You will never see that power in normal driving, or ever really while driving "fast". To represent those gains on a dyno the car must be under full load from low rpm, so the car is in 4th gear at 1500-2000rpm and the throttle is fully opened. The load the dyno adds would be similar to doing this on the road. You will never be going WOT on the road at 1500rpm, or even 2000rpm in 4th gear. If you did, you have no expectation of going quickly, because if you wanted acceleration you would downshift to take advantage of gearing. It takes time to build boost, so if you were to go WOT in 2nd gear on the road from 2500rpm you wouldn't get full power until 33-3500rpm because the revs are increasing so quickly and boost has to build. So in this situation you are only seeing a small benefit, but within a second or two you are in a region where the power losses show and the car loses acceleration. This prompts a short shift (because you can feel the larger power drop when torque is falling so drastically) and you end up in a higher gear where you lose the multiplication of torque that lower gearing provides. The "feel" might he there, but it doesn't translate into a large measurable improvement in normal driving.
I would prefer to see parts that leave the low end as is and only increase torque from 4000up as each lb ft is worth more hp the higher you rev and you don't waste it on wheel spin, cooling requirements etc...

I agree, but only to a point. Sure, you won't often be at 2000rpm in 4th gear going WOT. But doing WOT from 2000rpm in 2nd gear is not unreasonable. And with the small turbo, boost builds very quickly. I'll admit I don't have actual data to back it up, but I would expect that you're at or at least very near full boost by ~3000rpm.

If you look at the dyno graph they posted, the majority of the gains in torque are from ~2900rpm - ~4500rpm. Just about the same for horsepower. So I see no reason why you wouldn't feel and see those gains.

Not to mention that there is no real power loss compared to OEM, even at the top end. Looking at the dyno chart, it's like what maybe a 3-4 hp loss at 6500rpm? That's within the realm of dyno calculation variations (due to ambient conditions changing), or at worst that small change is most likely insignificant.

Any way you look at it, it seems that there are no power losses anywhere, and there are power gains.

 

[ian.j]

Suppose its personal prefrence, lose top end to gain mid

 

[joe@2j-racing]

Thats an interesting manifold Rod. I've never seen a spacer on a plenum and TB gain power on a small disp engine. If anyone picks one up locally, we'd be happy to do a before and after dyno tune.

 

[StayPuft]

I'll take a 15ft/lb gain from 2500-4000 that comes with a 5ft/lb loss at 6200-6500 every.day.all.day.

And on a mustang dyno.

 

[StayPuft]

Pictures from their blog

tb spacer:

im spacer:

 

[ian.j]

Not for me as i dont need more mid range wheelspin. But everyone has their own endgame.

 

[rodmoe]

I am curious to the point of being a tester .. Be fun to see if it makes any difference ..

 

[JPGC]

Correct .. I'm hoping these show greater gain with a bigger turbo too as well as leaving the option for WMI if so desired.

This...I'm curious to see if these will help with some of the low/ mid losses associated with going with a larger turbo that is tuned for mid/ high rpm. Nonetheless, I'm about as far as im going in to get with mods with what I have with the exception of getting coil overs, brake upgrades and a larger turbo setup. This will give me something to do on the car while I save for the more expensive stuff, lol.

 

[__V__]

I am curious to the point of being a tester .. Be fun to see if it makes any difference ..

Yeah I work 20 minutes from them and am finally thinking about heading up there for parts, but at 200 for parts (guess) + install + 2 dyno runs (guessing would have to have them do install there for easy dyno runs) its going to be too rich for my blood but I am also curious to see results with the Cobb tune.

 

[MikeyTwins]

Boomba throttle body and manifold spacers?

Does anyone have these and what do you think of them? Would they work well on a bigger or modified turbo car?

 

[Boomba Racing]

Does anyone have these and what do you think of them? Would they work well on a bigger or modified turbo car?

A lot of feedback through this thread: http://www.fiestastforum.com/forum/...ing-Intake-Manifold-and-Throttle-Body-Spacers