For those that are interested , here is my Dyno printout …
Made 277 BHP @ 8500 RPM…
Exige “S” Dyno plot…
Spec is …
TRD Airbox + filter
Chris Neils 260 BHP conversion
Lotus Stage 3 Exhaust
Forge intercooler
Bigger roof scoop from “JAMSSINT” (user on here)
Opened up “Letterbox”
In my opinion doing the cooling mods… (Forge, Letterbox and scoop) made pretty much as good an improvement as the 260 Chris Neils mod…
I get no noticeable drop off due to heat soak…
I have EXACTLY the same mods as you,even down to the roof scoop extension and mail slot clear out.Im defo looking forward to getting mine dynod in the next 2 weeks now .
Have you had yours on track at all with the stage 3?,im worried ill be just over the noise limit.
Thread hijack!,as you were
Boothy, you’re right, there is obviously a conflict of interest.
At least this thread has brought all you Forge boys out of the closet. I’m really interested to hear that the system works well for you. i guess that puts A/A back on the agenda?
Presumably, instead of a CN260 map, a Sincs custom map (all else being the same) could draw out more power than 277?
[quote=661]Boothy, you’re right, there is obviously a conflict of interest.
At least this thread has brought all you Forge boys out of the closet. I’m really interested to hear that the system works well for you. i guess that puts A/A back on the agenda?
Presumably, instead of a CN260 map, a Sincs custom map (all else being the same) could draw out more power than 277? [/quote]
Don’t forget Sincs want to sell you a CC 
Only if you want to increase boost to 9psi like me
My car before CC etc was pushing out 197.5 at 8200rpm, after CC 265.5 at 8188rpm. The difference on paper looks great but like i said before, driving wasn’t so much of a difference. Thats why i think i would do it differently second time round.
You thinking about food again? 
I think a2a or c/c depends a lot on your exige usage (track or road) combined with how much power you plan to extract out of your engine (and for how long before it pops!).
Personally I’ll do maybe one or 2 track days a year and the rest of the time the car will be my daily driver. Therefore by driving on the road and often in stop/start conditions (traffic, junctions, lights, etc) an a2a setup will cook too quickly…no matter how many ducts/scoops, etc if i aint travelling fast enough to draw the air in the a2a wont clear the heatsoak efficiently. For my driving and environment (road 99.9% of the time) it has to be c/c.
And as has been said before keeping the intake cool is even more vital when your aiming to squeeze 300+ from a little 1.8l…why would you spend your hard earned on the best of everything to get there (manifold, custom remap, fuel pump, injectors, etc, etc) and choose a cheaper (and not quite so efficient) method of intake cooling???
Uprated a2a definitely has its place, it isnt however the most efficient or effective way of cooling intake temps. Fact.
Also it’s nothing like �2k for a c/c setup…more like just over a grand now for a full c/c setup (with uprated main rad too) it’s only about �250 more than an uprated a2a (and rad).
Fellas dont be too hard on sincs…they are more than happy to work on my car with me having already fitted the MMG kit, they certainly didnt ram the pro alloy setup down my throat.
[quote=jfk]For those that are interested , here is my Dyno printout …
Made 277 BHP @ 8500 RPM…
Exige “S” Dyno plot…
Spec is …
TRD Airbox + filter
Chris Neils 260 BHP conversion
Lotus Stage 3 Exhaust
Forge intercooler
Bigger roof scoop from “JAMSSINT” (user on here)
Opened up “Letterbox”
In my opinion doing the cooling mods… (Forge, Letterbox and scoop) made pretty much as good an improvement as the 260 Chris Neils mod…
I get no noticeable drop off due to heat soak…
[/quote]
Brilliant figures there…it must fly! Just out of interest which dyno did you use for your power run?
Dude, not starting yet another boring (been done to death already) shit fight over this but I dont know where you get your facts form because A2A is more efficient than Water cooling and thats not just a fact its simple physics. If you need to cool down water it is much harder to cool than air, It takes longer to heat soke but once heat soked it will take longer to cool than air.
The Forge is a very efficient A2A cooler designed to work at very low flow, its a very good design and yes it obviously will heat soke quicker in traffic than a CC but it will also cool down very quickly once moving again.
Adrian Newey built a race car with over 300bhp using A2A cooling so it cant be that bad.
Yes CC is nice and safe and is also very easy to tune on a dyno as it will take much longer to heat soke plus its easy to cool the front mount rad with fans, but a good A2A with enough airflow will be just as effective and if you know what your doing can be tuned quite easily.
Boothy
Whiteysback asked …
""Brilliant figures there…it must fly! Just out of interest which dyno did you use for your power run? “”
I left the car with Paul at Christopher Neils… They use a local to them Dyno …
On the printout it says WGT Auto developments … DynaPack … If this makes any sense to you !!
Just to add … I chose the Forge over the C/C as I got …
A) A great deal…
B) I liked the light weight option over adding more weight and complexity…
As regards performance I would STRESS that :
The most noticeable improvement in performance was when I fitted the Forge/scoop/letterbox affair…
After this the car went to C/N’s for the other mods … Sure it came back quicker , but , the biggest bang for buck has to be getting rid of the standard factory intercooler …
The standard factory intercooler might as well not be there at all … It does now’t … 30 seconds at the lights and the ECU pulls the mapping to (I,m guessing -30 %) and it takes an age to get back …A N/A car would trounce it at this point !
C/C or Forge + roof mods … take your pick there are pro’s and cons for each…JUST DO SOMETHING !!!
I was talking to Dean at Lanzante who built that Redbull car the other day, they also run my old mans car.
They tested the Lotus Sport GT CC version but found it badly designed also found that after a shed load of testing AA was the way to go.
After talking to Liam at MMG he also thinks he can get an AA cooler made that will out perform a CC and could be lighter than stock and will have no lag like the CC coolers. hes fitting top of the range AA coolers to VXs with great results.
The cooler will use an F1 quality type core and will cost nearly twice as much as the CC kit but then its only four bolts and two clips to fit. my cars going to sincs for a re map + pump and dyno on the 10th and will go back to them to re dyno after the new AA is fitted to see how well it works.
going to chuck my 2 pennies worth in.
Running RLS Intercooler, RLS intercooler tubes, twin fans on intercooler sucking more air and now large motorsport airscope and heatshield. Very noticable that no power drop off due to heatsoke. After some very hard running at track days in France over Easter Intercooler was still very cool straight after coiming off track.
Very cold first morning and had trouble getting the engine warm enough to overcome 6000rpm limit !!
Have spoken to Wayne at Sinclaire’s and he is mored than happy to work on A2A cars but as he say’s “at your risk”
waiting to hear back from Jim Valentine about 2ubular system and then its of to Sinclaire’s for bigger injectors, bigger fuel pump, smaller pulley and remap. Hopping to get close to 260 bhp at hubs which is max allowed for Lotus Europe series
[quote=Balboa]going to chuck my 2 pennies worth in.
Running RLS Intercooler, RLS intercooler tubes, twin fans on intercooler sucking more air and now large motorsport airscope and heatshield. Very noticable that no power drop off due to heatsoke. After some very hard running at track days in France over Easter Intercooler was still very cool straight after coiming off track.
Very cold first morning and had trouble getting the engine warm enough to overcome 6000rpm limit !!
Have spoken to Wayne at Sinclaire’s and he is mored than happy to work on A2A cars but as he say’s “at your risk”
waiting to hear back from Jim Valentine about 2ubular system and then its of to Sinclaire’s for bigger injectors, bigger fuel pump, smaller pulley and remap. Hopping to get close to 260 bhp at hubs which is max allowed for Lotus Europe series [/quote]
Are you Federico’s customer? With the 100cell FIA Cat? Shipping after the holiday week-end.
[quote=321freeflow][quote=Balboa]going to chuck my 2 pennies worth in.
Running RLS Intercooler, RLS intercooler tubes, twin fans on intercooler sucking more air and now large motorsport airscope and heatshield. Very noticable that no power drop off due to heatsoke. After some very hard running at track days in France over Easter Intercooler was still very cool straight after coiming off track.
Very cold first morning and had trouble getting the engine warm enough to overcome 6000rpm limit !!
Have spoken to Wayne at Sinclaire’s and he is mored than happy to work on A2A cars but as he say’s “at your risk”
waiting to hear back from Jim Valentine about 2ubular system and then its of to Sinclaire’s for bigger injectors, bigger fuel pump, smaller pulley and remap. Hopping to get close to 260 bhp at hubs which is max allowed for Lotus Europe series [/quote]
Are you Federico’s customer? With the 100cell FIA Cat? Shipping after the holiday week-end. [/quote]
No Jim, Jonathan Mobbs we have exchanged some e-mails this week. Waiting on a call from you to discuss options
cheers Jon
[quote=Balboa][quote=321freeflow][quote=Balboa]going to chuck my 2 pennies worth in.
Running RLS Intercooler, RLS intercooler tubes, twin fans on intercooler sucking more air and now large motorsport airscope and heatshield. Very noticable that no power drop off due to heatsoke. After some very hard running at track days in France over Easter Intercooler was still very cool straight after coiming off track.
Very cold first morning and had trouble getting the engine warm enough to overcome 6000rpm limit !!
Have spoken to Wayne at Sinclaire’s and he is mored than happy to work on A2A cars but as he say’s “at your risk”
waiting to hear back from Jim Valentine about 2ubular system and then its of to Sinclaire’s for bigger injectors, bigger fuel pump, smaller pulley and remap. Hopping to get close to 260 bhp at hubs which is max allowed for Lotus Europe series [/quote]
Are you Federico’s customer? With the 100cell FIA Cat? Shipping after the holiday week-end. [/quote]
No Jim, Jonathan Mobbs we have exchanged some e-mails this week. Waiting on a call from you to discuss options
cheers Jon [/quote]
Ah! Will do Jon, sorry - Bank Holiday mayhem - 6 days work into 3. Insanity.
lol…this is what forums are for…if we all agreed on only one way to do things it would all make for boring reading and progress would never happen.
I’ve not managed to heatsoak my c/c setup once yet and i’ve driven it very hard for lengthy periods of time. My old a2a would heatsoak within 5 mins. A good c/c setup must take a lot, lot longer (if at all) to heatsoak.
Adrian Newey built a race car with over 300bhp using A2A cooling so it cant be that bad.
After some very hard running at track days in France over Easter Intercooler was still very cool straight after coiming off track.
Very cold first morning and had trouble getting the engine warm enough to overcome 6000rpm limit !!
Like I say a2a is totally the way to go provided you have good, high speed air flow. Like in a race car.
Without good, regular airflow (like on the road 99% of the time) a2a will definitely heat soak. With improved efficiency to the core and improved airflow to reach it you’ll help things loads but ultimately unless you’re constantly ramming in cool air (not possible on the road) it wont be as efficient as a c/c setup.
What can I say other than what I know, both my old impreza’s heat soaked easy, so did my both my old exige and my new one. This is my 1st c/c equip car and it doesnt.
So you bought a CC to sit in traffic? All I can say is even if mine heatsokes (which is rare) its gone in seconds.
A CC will heatsoke, it just takes longer but it still needs air flow too cool down.
Anyhow everyone has there own ideas on ways to do things and if we were all the same things would be dull.
lmao @Boothy … C/C to sit in traffic !!!
Gotta be the quote of the week …
My stomach hurts !!!
