[F82Tazmanian]

Anyone know how susceptible the b58 is to heat soak? I have the MPPSK + DINAN v2. Car feels very sharp first the first 5 minutes but after 10-15 minutes, just doesn't feel that quick.

Ordered a dragy to see.

[track.n.trail]

I have noticed the car pulling timing as IATs rise. However I only see this behavior after running the car hard and then sitting at a light or driving slowly. I'm on the stock intake which should be the least affected by heat soak compared to the open filter options.

[eksigned]

first 5 minutes the car's cold. you shouldn't be pushing much, but to each their own.
depends on your climate, but here in socal, I've noticed some pretty bad heat soak in 80+ degree weather. but it's a fi car so...we're extra susceptible.

[kern417]

I guess I need to run some more logs now that temps are warming up. My logs doing pulls in 60ish degree weather were beautiful. IATs would rise during the pull but drop almost immediately afterwards, so that's not the same as heat soak. Only if IATs stay high for extended times or warm up when you're not pushing the car hard would I worry about it.

[B58]

MHD sport cooling intercooler

[F82Tazmanian]

Originally Posted by dotfiles

I have noticed the car pulling timing as IATs rise. However I only see this behavior after running the car hard and then sitting at a light or driving slowly. I'm on the stock intake which should be the least affected by heat soak compared to the open filter options.

Interesting. Reminds me of my s4. It would only cool down if I was moving. Then again even an air to air does that.

Thanks

[F82Tazmanian]

Originally Posted by kern417

I guess I need to run some more logs now that temps are warming up. My logs doing pulls in 60ish degree weather were beautiful. IATs would rise during the pull but drop almost immediately afterwards, so that's not the same as heat soak. Only if IATs stay high for extended times or warm up when you're not pushing the car hard would I worry about it.

Thanks that's good to know. I know with the f80 they are amazingly resistant to heat soak but that's a more heavy duty system so wasn't sure how we fared.

Are you stock?

[kern417]

Originally Posted by 440iGCCB

Interesting. Reminds me of my s4. It would only cool down if I was moving. Then again even an air to air does that.

Thanks

Originally Posted by 440iGCCB

Thanks that's good to know. I know with the f80 they are amazingly resistant to heat soak but that's a more heavy duty system so wasn't sure how we fared.

Are you stock?

I have BM3 Stage 1 map (93 octane). ~16psi or so. stock everything else though (intake, downpipe, etc.) just the tune. when my logs tell me I need it, i'll upgrade my radiator. But for now it seems great across the board.

Also the benefit we have is the stock radiator is already huge, and the radiator fans cool down IATs even when stopped. So it's more efficient than an air to air intercooler.

[F82Tazmanian]

Originally Posted by kern417

I have BM3 Stage 1 map (93 octane). ~16psi or so. stock everything else though (intake, downpipe, etc.) just the tune. when my logs tell me I need it, i'll upgrade my radiator. But for now it seems great across the board.

Also the benefit we have is the stock radiator is already huge, and the radiator fans cool down IATs even when stopped. So it's more efficient than an air to air intercooler.

I think with MPPSK + dinan I'm at +5psi so I should be good then!

Thanks

[F82Tazmanian]

Originally Posted by 440iGCCB

I think with MPPSK + dinan I'm at +5psi so I should be good then!

Thanks

Also I just rethought what you said. Do you mean the stock heat exchanger? I thought the radiator was mainly for engine cooling not intercooler?

[F82Tazmanian]

Well I got my dragy and did an impromptu 1/4 mile in Mexico. Granted my 60ft sucked and I'm new to this but I only got 107.75mph.

Seems pretty crap for a MPPSK and dinan car.

[kern417]

Originally Posted by 440iGCCB

Also I just rethought what you said. Do you mean the stock heat exchanger? I thought the radiator was mainly for engine cooling not intercooler?

We have 2 radiators. One for the engine, one for the air-to-water intercooler. The replacements that are on the market are for the intercooler radiator.

[track.n.trail]

Originally Posted by 440iGCCB

Well I got my dragy and did an impromptu 1/4 mile in Mexico. Granted my 60ft sucked and I'm new to this but I only got 107.75mph.

Seems pretty crap for a MPPSK and dinan car.

Your 60ft was awful which probably contributed to your poor ET and lower speed. If you can find a better surface or let some air out of your rear tires (if running non-runflats) you may fair a bit better.

[Wires]

I only really notice when doing a lot of stop/go driving when it's hotter out. The days that's it's 5-10 degrees about freezing are just stellar though! As the outside air gets hotter, you really notice the turbo lag in stop and go as IAT's climb.

[F82Tazmanian]

Originally Posted by Wires

I only really notice when doing a lot of stop/go driving when it's hotter out. The days that's it's 5-10 degrees about freezing are just stellar though! As the outside air gets hotter, you really notice the turbo lag in stop and go as IAT's climb.

Same here. When it's cold there is definitely more of a punch!