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Intercoolers

PhilKent

PCGB Member
Member
Anyone got experience of upgrading intercoolers, such as the Lindsey Racing stage I/II, the Augment one, Any others? Specifically interested in measured power gains if available...?
 
Hi Phil

I have the Augment upgrade, it's exactly the same as the Lindsey and other Stage 1 intercooler's out there. As you know I did many changes in the last round of mods, the intercooler being one of them but I'm sure it plays a good part in the power gain. As it happens my intercooler was deemed unusable by Tom when sent to him for the conversion to stage 1, this due to the bad Piper ram air intake system that gave way to the amount of induction available sucking the bonded foam filter out of the chamber into the engine knackering the turbo.. one of those 'trials and tribulations' of modified cars moments I've mentioned recently...:) I have since read that this has occurred on other modified cars fitted with this intake so don't buy one. I don't have the graph's to hand but can say that my IT rose from 15 to 44 degree's, reducing power by around 60bhp, clearly, the intercooler was toast...lol

Pete
 
Thanks for that Pete, I noticed on the power run it dropped pretty quick as heat soak got into the intercooler and I suspect it's the limiting factor now. Then it'll be back to the turbo, but I'll stop at that! I'm running a slightly smaller turbo than you, so I wouldn't expect quite as much power from my set-up. Aside from the Turbo, I think we have a very similar set-up.
 
Looking at your graph Phil I don't think that your power drop is due to the intercooler, your IT is 18 which isn't bad, I think mine was around that at 368bhp ... are you by chance using a manual boost controller?...these do allow more drop off once max power has been reached whereas a solenoid controlled EBC will hold max power. Having said that I'm not totally convinced that this is the only cause as my 368 was when using an MBC...it's probably due more to the smaller turbo you currently have fitted..

cheers

Pete
 
PhilKent said:
Anyone got experience of upgrading intercoolers, such as the Lindsey Racing stage I/II, the Augment one, Any others? Specifically interested in measured power gains if available...?


I've seen pictures of high power 968 turbo engines that use 944 turbo intercoolers with standard end tanks. It seems the important thing is the ducting into and out of the intercooler. If you didn't want a duct in the bonnet I'd investigate a temp triggered water spray for the intercooler.
 
I contemplated an SFR intercooler but was put off by the negative feedback, evidently ordering is one thing, actually getting the order is another. SFR do a larger one too, well if you can get it that is. Regarding the ad itself, that looks very dodgy to me...a seller with 'zero' trades is a no, no for me...

Pete
 
PSH said:
Looking at your graph Phil I don't think that your power drop is due to the intercooler, your IT is 18 which isn't bad, I think mine was around that at 368bhp ... are you by chance using a manual boost controller?...these do allow more drop off once max power has been reached whereas a solenoid controlled EBC will hold max power. Having said that I'm not totally convinced that this is the only cause as my 368 was when using an MBC...it's probably due more to the smaller turbo you currently have fitted..

cheers

Pete
That IT is just ambient Pete, he didn't measure my IT directly and I wasn't logging during the run (my mistake), I suspect my IT was more like 45-60degC. Normal running it's about 30degC. I am currently using an MBC but have plans to replace with a solenoid...
 
Iv got enlarged Ic by tom as well, made 360 hp off 1 bar wastegate Spring. after many other ebc attempts at 1.2 and 1.6 bar pulls. Kept slipping the rollers, had to let air out rear tires and get two guys in spear tire well, Temps where hot when I started waste gate pull, 30deg start and 54 deg finsh, hp was still climbing at 6400 rpm
 
Thanks for that T3rra.
I'm probably going to get the Augment (tom) mod done. I've noticed you can pick up a new intercooler on ebay for £159 at the moment (standard) and was thinking of getting one of them to have modified, just in case I wanted to return to normal for any reason (or if mine was beyond working on). Seems like a bargain price for an intercooler when you look at the cost of the modification alone!
I'm also interested to see if my inlet temps go down with a new 'stock' intercooler. 30 years of oily air through an intercooler is bound to have a negative impact...
Out of interest, is the augment mod done on both sides of the intercooler or just the one?
 
PhilKent said:
Out of interest, is the augment mod done on both sides of the intercooler or just the one?



Just the one side Tom, not sure what's involved with Stage 2 as I never looked into it, the standard intercooler did very well before I lost the air filter in it.... I had to get a replacement off ebay due to mine being toast, if you do the same be sure to get one that's been pressure tested, this is the first thing that Tom does to check it's suitability.


Here's mine in the car.....
8m4x8DI.jpg


Pete
 
Is there any proof that modifying one end tank makes a difference ? I don't think the Porsche engineers were mugs.
 
blade7 said:
Is there any proof that modifying one end tank makes a difference ? I don't think the Porsche engineers were mugs.
They are tested and compared with standard , I can't remember the figures but there is a marked difference in performance... LR might give test details on their site, they are all much the same mod.

Pete
 
PSH said:
blade7 said:
Is there any proof that modifying one end tank makes a difference ? I don't think the Porsche engineers were mugs.
They are tested and compared with standard , I can't remember the figures but there is a marked difference in performance... LR might give test details on their site, they are all much the same mod.

Pete
I've never seen an independent like for like test Pete. I'll dig out my old 87 Cosworth intercooler and check the end tanks on that. It would cost me about £25 to modify a 944T intercooler.
 
Need to be running more then 320 to notice the need. eBay ones are Chinese copy's? But still be good to get one cut ope. See if the cast is smooth on inside



 
Just ordered one off ebay. I'm going to do some side by side comparisons and then modify whichever one shows the most promise...
 
So, an update on my intercooler stuff. Went for a drive with the original one today and logged the temps, got on boost for a few stretches and noticed temps going from about 27-33degC not massive, but ambient was probably about 19-20degC. Only a short run so not loads of heat soak, but it was slow to dissipate once it got above 30degC.
Swapped out the intercooler for the cheap Ebay purchase £159shipped and did the same drive. temps were a consistent 22degc dropping to a low of 21 and on boost maxed at 25degC but dropped back within about 10seconds to 22degC once off boost, so I recon that's a very good result, about a 10degC improvement. Now to look at modifying it...
 

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