e500slr

Outrun, the guys face is sheer poetry

outrun

I have no idea what that's from. Some shiatty reality show would be a guess. Maybe this would have been more appropriate?

GregMB

BTT for a "real" update....

Intercooler p0rn is funny, but I'd love to get some more specs, photos and pricing if Brad's that far along.



-G

stevebez

Been away from here for a bit and this mod pops up ... OMG.

Quality looks awesome. Looooong overdue. Congrats guys!

If I may, if you guys can make this a seamless install without requiring a retune, that would be very usefull.... although I would guess a retune may allow more power to be extracted.... any thots? I figure less boost drop off so higher boost readings may need some re-tuning.

Cant wait to see how things go with this. Rear reservoir guys will get the most bang for the buck out of these puppies....

Clearly I would be interested in these ... lets hope they deviler on all fronts!!! and hoorahh they will fit a RHD!

brad @ evosport

Some pressure and flow info:







As you can see the pressure drop is VERY small across this splitter. In fact, it is only .0001 lb/in*2 across the entire piece.

This splitter will allow for very effective flow, allowing for very small losses at the most critical piece - the splitter.

Thanks
Brad

gaspam

am i the only one that can only see vag's now that the joke has been made?

back on point, the pressure drop is amazingly consistant!

Bramage

Any time you increase the airflow through an engine, parameters will need to be adjusted to optimize the combustion process, and ensure safety. As with Headers or Throttle Body, you are adding more air to the combustion process. In doing so, you will need more fuel. If this was designed with stock flow (volume and pattern) characteristics, and only advanced cooling, it would likely not need to be tuned. However, you would not get any power, and no one would buy it….

The real benefit here is: Airflow

You get much higher airflow through the intake, and have more efficient intercoolers allowing higher boost applications to maintain reasonable IAT's. This all equals power. Our stock Intercoolers are very restrictive due to the shortage of surface area to work with. By moving the Intercoolers up top, you have a much larger surface area, and in turn have a much better flow rate (Cram more air into cylinders).

Outside of cooling benefits, and just looking at flow improvements, I would think this could add 50+ HP. The intercoolers would make that power sustainable.

Roverron

Are these flow graphs readings through the top mount coolers even though we don't see them there?
Are these just flow readings if the lower center piece of the unit.
Is this project still fully digital?
Meaning no hardware readings just software.
I'm trying to feel what stage you guys are at with development.

Also if this project does come to reality heres the math

1 TTM injectors and rail. for fuel
2 EVOSPORT top mount setup. airflow and better sustainable power limited heat soak
3 Headers. better removal of the exhaust gases. the faster the air in the faster you need to get it out for the 4 cycles
4 Heat exchanger help maintain thermal transfer of heat and cooler air charge
5 pulley for more boost. since compression heat wont be as big of a problem "or will this new design allow better flow to utilize boost we already have?"
6 Tune. most important to take advantage of all mods done
7 Locked rear. traction

stevebez

I'd be interested in the variance in IAT across cylinders ... given we have a parallel I/C and depending how water flows across the I/C there could be a differential in IAT front to back across the I/C. Would be interested to hear how this is dealt with and also how the SLR deals wth it.

Awesome project!

Bramage

Rov, these charts only outline the flow through the plenum (Under the supercharger). I suspect later testing will provide flow characteristics through the intercoolers, and as pointed out above, IAT data across the cylinder bank(s) would be splendid. I think there is a potential for variation there, however I have not seen the water flow design. If air pools in the post intercooler area like it does in our surge tanks (which it most likely does), this alone would compensate for intercooler discharge deviations of each independent bank. (I think) I am also curious about bank to bank deviations. Back to water flow, this could be tricky, however I have a suspicion this has been worked out.

I like that these are really being engineered, with data being provided though the development process.

GregMB

BTT.....

It's a new week, hoping we'll get to see some hard parts soon??? The suspense is killing me.


-G

jcjmw

+1

Evosport, where is the weekly status? Lets have some more news...ETA on the product, more details about it and PRICING (hint, hint).

GregMB

I heard an unconfirmed rumor that the airbox portion of this design will look like boobies....



-G

Bramage

^

BenzoBoi

Ali_E55

when we modded a SLR 722S with 180mm pulley, TB, secondary cats removed, air filters and dual CM30 IC pumps. on the dynno IATs increases to 65C and stays there. outside weather was 36C.

after driving for sometime WOTs and hard driving it reaches max 70C @ 36C outside.


with all the mods on the SLR it showed about 670rwhp @ 35C. stock was 530rwhp.

a very strong car for just some simple mods.

Jeremy who tuned it from OE Tuning

GT-ER

The SLR put 670whp without nitrous? Is the 722 supercharger the same as ours ( with the exception of the gearing inside )? That's more that I ever expected. Damn.

Ali_E55

these SLRs are no joke, SC looked the same from out (boost was 17PSI). i think the huge intake and cooling system is helping alot.

it is faster than modded SL65 BS (including larger H/Es and IC pumps) which showed 630rwhp. even when starting the race from 3rd gear, SLR always wins and it is a convertiable SLR which makes it havier than the roadster by 40kg.

damn it was spinning tires till it reaces 200km and had only 1000km on the clock.

Havoc

+1 That's why I've been pushing for some custom top mount coolers for years. Plus it's a cheaper alternative than replacing our stock S/C system.

Ali_E55

but there is something diffrent in SLR engine that outputs all this power.

i read before that SLR pistons are diffrent than 55k and also crank case and cams. but to output this much for only these 3 diffrent changes in the engine is not enough. there must be something.

huge intake is one of them.

Zod

Those are some, but also do not forget it is lighter in weight, gearing is better, higher RPM shift points, TCU is different with the M1/M2 modes (shifts faster) and no blow off valve thing (can not remember the name for ours under the supercharger)..also oil cooling is different

SLR is still a monster in my eyes

e500slr

The SLR is dry sump, they say it can add a bit of power and prevent oil starvation obviously. While we share the block the SLR engine is very different. Weight is another thing, people dismiss it but weight is a killer of everything. Nothing comes good of weight. By the way don't say traction because I'd rather have stickier tyres than more weight. The SLR is just a beast though, it oozes of power, definitely my dream car, but hey at least I have the block.......and maybe the supercharger....spark plugs maybe hehe

brad @ evosport

CNC programming is underway. Real parts will be in hand next week!

BENZGal

Brad,
I am interested in talking cost and shop prices. Harmut offered me that product with an expenive install. The top mounted cooler was tested at Moroso in my car, and the heat soak was too much to justify the financial gain. If you have found a way to beat that Im all ears. His model required a CF engie with a scoop hood. Please keep me it the loop with your R&D. I have every confidence in Evosport products.

Anglea

Hammer Down

Angela, do you have any pics or video of your ZR1